1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

FEATURES

Speech part

Voltage regulator with adjustable static resistance

Low DC line voltage; operates down to 1.6 V
(excluding polarity guard)

Supply for dialler part and peripherals (not stabilized)

Symmetrical high-impedance inputs (64 k

) for

dynamic, magnetic, or piezoelectric microphones

Asymmetrical high-impedance input (32 k

) for electret

microphones

Asymmetrical earpiece output for dynamic, magnetic,
or piezoelectric earpieces

Internal mute to disable speech during dialling

Confidence tone during DTMF dialling

Line-loss compensation (line-current dependent) for
microphone and earpiece amplifiers

Gain-control curve adaptable to the exchange supply.

Dialler part

Pulse/DTMF and mixed mode dialling

Last Number Redial (LNR), up to 32 digits

13 repertory numbers (3 direct and 10 indirect) or
10 repertory numbers (10 direct), up to 32 digits,
with a maximum of 224 digits in total

Repertory and redial memory integrity check
(memory contents check)

Notepad memory function

Flash and earth register recall

Dial mode output

Access pause generation and termination

Function keys for: store, memory recall, register recall,
LNR, pause, hold, mute, hook

Keytone generation

Hands-free control

Volume control in hands-free mode (VOL+/VOL

)

Hold function

Mute function

Music-on-hold

Diode options:

DTMF tone burst/pause time

make/break ratio

access pause time

pulse or DTMF mode selection

keyboard layout selection

selection for german requirements

hold/mute mode selection.

Ringer part

Ringer input frequency discrimination

Ringer melody generation (3-tone)

Ringer melody selection/volume control via keyboard

Diode option: ringer frequency selection.

GENERAL DESCRIPTION

The TEA1069 and TEA1069A contain all the functions
needed to build a highly featured, high-performance fully
electronic telephone set.

The device incorporates a speech/transmission part, a
dialler part and a ringer part. By offering a wide range of
possible adaptations for each part, the TEA1069 and
TEA1069A application can be easily adapted to meet
different requirements.

The TEA1069A offers some different timings and diode
options compared to the TEA1069.

Where pin numbers are mentioned in this data sheet we
refer to the TEA1069N, unless otherwise indicated.

Speech part

The speech/transmission part performs all speech and line
interface functions required in electronic sets. It operates
at line voltages down to 1.6 V DC to facilitate the use of
more telephones connected in parallel.

Dialler part

The dialler part offers a 32-digit Last Number Redial (LNR)
and 13 memories. Hands-free control is included allowing
the TEA1069 and TEA1069A to be used not only in basic
telephones, but also in feature phones offering hands-free
dialling via the TEA1083 call-progress monitor IC and/or
full hands-free operation via the TEA1093 hands-free IC.
The hold function allows the user to suspend the
conversation and resume the call either on the same
phone or on a parallel phone. Additionally through the
music-on-hold function a melody is transmitted while the
set is put on hold. The keytones provide in a buzzer an
audible feedback of a valid key pressed.

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

BLOCK DIAGRAM

handbook, full pagewidth

MBH195

34 (30)

KEYBOARD

DETECTOR

RECALL

KEY-

TONE

GENERATOR

TIMING/

CONTROL

DETECTOR/

GENERATOR

RINGER

33 (29)

DIODE

ROW5

32 (28)

ROW4

31 (27)

ROW3

30 (26)

ROW2

29 (25)

ROW1

14 (8)

COL6

15 (9)

COL5

16 (10)

COL4

17 (12)

COL3

18 (13)

COL2

19 (14)

COL1

9 (3)

CSI

10 (4)

XTAL1

11 (5)

XTAL2

12 (6)

RESET

13 (7)

25 (20)

CE/FDI

HOLD

LOGIC

MUTE

RECEIVE

SECTION

PULSE

DIALLER

SPEECH

(2)

(24)

(19)

(21)

(17)

(15)

(22)

(31)

(32)

(44)

(34)

(36)

(40) 2

AGC

MUTE

MOH/DMO

DP/FL

KT/EARTH

TONE

VOL1

VOL2

(16)

HOLD

(33)

REG

(43)

STAB

(35)

SLPE

(1)

DTMF

(42)

MIC

(41)

MIC

(11, 18

and 23)

TRANSMIT

SECTION

SUPPLY

GAR

(37) 41

GAS1

(38) 42

GAS2

(39) 1

TEA1069

TEA1069A

Fig.1 Block diagram.

Pin numbers in parenthesis refer to the TEA1069H and TEA1069AH.

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

PINNING

SYMBOL

PIN

DESCRIPTION

SOT270-1

SOT307-2

receiving amplifier output

GAR

gain adjustment; receiving amplifier

MIC

inverting microphone input

MIC+

non-inverting microphone input

STAB

current stabilizer

receiving amplifier input

DTMF

dual-tone multi-frequency input

KT/EARTH

keytone/earth recall output

CSI

cradle switch input

XTAL1

oscillator input

XTAL2

oscillator output

RESET

reset input

CE/FDI

chip enable/frequency discrimination input

COL6

keyboard column input 6

COL5

keyboard column input 5

COL4

keyboard column input 4

COL3

keyboard column input 3

COL2

keyboard column input 2

COL1

keyboard column input 1

DP/FL

dial pulse/flash output

HOLD

hold control input

VOL2

volume 2 output

11, 18, 23

negative line terminal

TONE

tone generator output

dialler/ringer part supply voltage

VOL1

volume 1 output

MOH/DMO

music on hold/dial mode output

hands-free control output

ROW1

keyboard row input/output 1

ROW2

keyboard row input/output 2

ROW3

keyboard row input/output 3

ROW4

keyboard row input/output 4

ROW5

keyboard row input/output 5

DIODE

diode option output

MUTE

mute output, active LOW

speech part supply voltage

REG

(DC) line voltage regulator decoupling

AGC

automatic gain control input

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

Fig.3 Pin configuration (SOT307-2).

handbook, full pagewidth

TEA1069H

TEA1069AH

MBH784

DTMF

KT/EARTH

CSI

XTAL1

XTAL2

RESET

CE/FDI

COL6

COL5

COL4

VEE

COL3

COL2

COL1

DP/FL

HOLD

VOL2

TONE

VOL1

MOH/DMO

MUTE

DIODE

VCC

REG

ROW3

ROW2

ROW4

ROW5

VEE

ROW1

STAB

MIC

GAR

GAS2

GAS1

SLPE

AGC

FUNCTIONAL DESCRIPTION

Speech part

For numbering of components refer to Figs 28 and 29.

UPPLIES

, LN, SLPE, REG

AND

STAB

Power for the IC and its peripheral circuits is usually
obtained from the telephone line (see Fig.4).

The circuit creates a stabilized voltage (V

ref

= 3.7 V)

between LN and SLPE. This reference voltage is
temperature compensated and can be adjusted by means
of an external resistor R

. It can be increased by

connecting an R

resistor (R60) between REG and SLPE

or decreased by connecting an R

resistor (R61)

between REG and LN. This internal voltage reference is
decoupled by capacitor C3 between REG and V

This decoupling capacitor realises the set impedance
conversion from its DC value to its AC value in the audio
frequency range.

The internal transmission part of the circuitry (including the
earpiece amplifier) is supplied from V

. This voltage

supply is derived from the LN voltage via a dropping
resistor (R1) and must be decoupled by a capacitor (C1)
between V

and V

. This supply point may also be used

to supply the dialler/ringer (V

) part or external circuit e.g.

electret microphone.

The DC current flowing into the set is determined by the
exchange supply voltage V

exch

, the feeding bridge

resistance R

exch

and the DC resistance of the telephone

line R

line

. When the line current (I

line

) is more than 0.5 mA

greater than the sum of the IC supply current (I

) and the

current drawn by the peripheral circuitry connected to V

), the excess current is shunted to SLPE via LN.

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

Fig.4 Supply arrangement.

handbook, full pagewidth

MBH197

SLPE

STAB

REG

peripheral

circuits

0.5 mA

Rline

Rexch

Vexch

Iline

ICC

VCC

VEE

ISLPE

0.5 mA

ISLPE

TEA1069
TEA1069A

Thus, the regulated voltage on the line terminal (V

) can

be calculated as:

, where

ref

is the internally generated temperature compensated

reference voltage of 3.7 V and R9 is an external resistor
connected between SLPE and V

The circuit has an internal current stabilizer operating at a
level determined by resistor R5 connected between STAB
and V

In normal use the value of R5 would be 3.6 k

and the

value of R9 would be 20

Changing the value of R5 or R9 will affect microphone
gain, DTMF gain, gain control characteristics, sidetone
level, maximum output swing on LN and the DC
characteristics (especially at low line current).

At line currents below 9 mA the internal reference voltage
is automatically adjusted to a lower value (typically 1.6 V

ref

SLPE

line

0.5

at 1 mA). This means that more sets can be operated in
parallel with DC line voltages (excluding the polarity guard)
down to an absolute minimum voltage of 1.6 V. At line
currents below 9 mA the circuit has limited sending and
receiving levels.

Under normal conditions, when I

SLPE

>> I

+ 0.5 mA + I

the static behaviour of the circuit is that of a 3.7 V regulator
diode (V

ref

) with an internal resistance equal to that of R9.

In the audio frequency range the dynamic impedance is
largely determined by R1. Figure 5 shows the equivalent
impedance of the circuit.

Current (I

) available from V

for the dialler part and

peripheral circuits depends on the external components
used. Figure 6 shows this current for V

> 2.2 V. When

MUTE is HIGH i.e. when the receiving amplifier (supplied
from V

) is driven, the available current is further

reduced. Current availability can be increased by
connecting the supply IC TEA1081 in parallel with R1, or
by increasing the DC line voltage by means of an external
resistor (R

= R60) connected between REG and SLPE.

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

ICROPHONE INPUTS

MIC+

AND

MIC

AND GAIN PINS

GAS1

AND

GAS2

The circuit has symmetrical microphone inputs. Its input impedance is 64 k

32 k

) and its voltage gain is typically

52 dB (when R7 = 68 k

). Dynamic, magnetic, piezoelectric or electret (with built-in FET source followers) microphones

can be used. Microphone arrangements are illustrated in Fig.7.

Fig.7 Alternative microphone arrangements.

Pin numbers in parenthesis refer to the TEA1069H and TEA1069AH.

(1) Resistor may be connected to reduce the terminating impedance.

a. Magnetic or dynamic

microphone.

b. Electret microphone.

c. Piezoelectric microphone.

handbook, full pagewidth

MBH198

VEE

VCC

(1)

36 (32)

3 (41)

4 (42)

23 (18)

4 (42)

3 (41)

4 (42)

3 (41)

MIC

The gain of the microphone amplifier can be adjusted
between 44 dB and 52 dB to suit the sensitivity of the
transducer in use. The gain is proportional to the value of
R7 which is connected between GAS1 and GAS2. Stability
is ensured by two external capacitors, C6 connected
between GAS1 and SLPE and C17 connected between
GAS1 and V

. The value of C6 is 100 pF but this may be

increased to obtain a first-order low-pass filter. The value
of C17 is 10 times the value of C6. The cut-off frequency
corresponds to the time constant R7

C6.

ECEIVING AMPLIFIER

IR, QR

AND

GAR

The receiving amplifier has one input (IR) and one output
(QR). Earpiece arrangements are illustrated in Fig.8.
The IR to QR gain is typically 31 dB (when R4 = 100 k

It can be adjusted between 20 and 31 dB to match the
sensitivity of the transducer in use.
The gain is set with the value of R4 which is connected
between GAR and QR. The overall receive gain, between
LN and QR, is calculated by subtracting the anti-sidetone
network attenuation (32 dB) from the amplifier gain.
Two external capacitors, C4 and C7, ensure stability. C4 is
normally 100 pF and C7 is 10 times the value of C4.
The value of C4 may be increased to obtain a first-order
low-pass filter. The cut-off frequency will depend on the
time constant R4

C4.

The output voltage of the receiving amplifier is specified for
continuous-wave drive. The maximum output voltage will
be higher under speech conditions where the peak to RMS
ratio is higher.

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

Fig.8 Alternative receiver arrangements.

Pin numbers in parenthesis refer to the TEA1069H and TEA1069AH.

(1) Resistor may be connected to prevent distortion (inductive load).

(2) Resistor is required to increase the phase margin (capacitive load).

a. Dynamic earpiece.

b. Magnetic earpiece.

c. Piezoelectric earpiece.

k, full pagewidth

(1)

(2)

1 (39)

23 (18)

1 (39)

23 (18)

1 (39)

23 (18)

MBH199

VEE

UAL

ONE

ULTI

-F

REQUENCY INPUT

DTMF

When the DTMF input is enabled (MUTE is LOW) dialling
tones may be sent on to the line. The voltage gain from
DTMF to LN is typically 25.5 dB (when R7 = 68 k

) and

varies with R7 in the same way as the microphone gain.
The tones can be heard in the earpiece at a low level
(confidence tone).

UTOMATIC

AIN

ONTROL INPUT

AGC

Automatic line loss compensation is achieved by
connecting a resistor (R6) between AGC and V

The automatic gain control varies the gain of the

microphone amplifier and the receiving amplifier in
accordance with the DC line current.

The control range is 5.8 dB which corresponds to a line
length of 5 km for a 0.5 mm diameter twisted-pair copper
cable with a DC resistance of 176

/km and average

attenuation of 1.2 dB/km. Resistor R6 should be chosen in
accordance with the exchange supply voltage and its
feeding bridge resistance (see Fig.9 and Table 1).
The ratio of start and stop currents of the AGC curve is
independent of the value of R6. If no automatic line-loss
compensation is required the AGC pin may be left
open-circuit. The amplifiers, in this condition, will give their
maximum specified gain.

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

IDETONE SUPPRESSION

Suppression of the transmitted signal in the earpiece is
obtained by the anti-sidetone network comprising R1//Z

line

R2, R3, R8, R9 and Z

bal

(see Fig.10). The maximum

compensation is obtained when the following conditions
are fulfilled:

(1)

(2)

(3)

The scale factor k is chosen to meet the compatibility with
a standard capacitor from the E6 or E12 series for Z

line

In practice, Z

line

varies considerably with the line type and

length. Therefore, the value chosen for Z

bal

should be for

an average line length thus giving optimum setting for
short or long lines.

Example: the balance impedance Z

bal

at which the

optimum suppression is present can be calculated as

(

)

(

)

(

)

-----------------------------

bal

line

follows:
suppose Z

line

= 210

+ (1265

//140 nF) representing a

5 km line of 0.5 mm diameter, copper, twisted-pair cable
matched to 600

(176

/km; 38 nF/km).

When k = 0.64 then R8 = 390

;

bal

= 130

+ (820

//220 nF).

The anti-sidetone network for the TEA1069 and
TEA1069A shown in Fig.10 attenuates the signal received
from the line by 32 dB before it enters the receiving
amplifier.
The attenuation is almost constant over the whole
audio-frequency range. Figure 11 shows a conventional
Wheatstone bridge anti-sidetone circuit that can be used
as an alternative. Both bridge types can be used with
either resistive or complex set impedances. More
information on the balancing of anti-sidetone bridges can
be found in our publication

"Applications Handbook for

Wired telecom systems, IC03b", order number
9397 750 00811.

Fig.10 Equivalent circuit of TEA1069 and TEA1069A anti-sidetone bridge.

handbook, full pagewidth

MSA500 - 1

SLPE

Zline

VEE

Zbal

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

Fig.11 Equivalent circuit of an anti-sidetone network in a Wheatstone bridge configuration.

handbook, full pagewidth

MSA501 - 1

SLPE

Zline

VEE

Zbal

Dialler and ringer part

UPPLY VOLTAGE

PINS

AND

The power supply must be maintained for data storage.
The RAM retention voltage (standby supply voltage) may
drop down to 1.0 V. Applying a large capacitor across the
supply terminals can retain the memory if power
connections are broken. The minimum operation voltage is
2.5 V. The internal power-on reset is enabled for a voltage
below this minimum operation voltage.

SCILLATOR INPUT

OUTPUT

PINS

XTAL1

AND

XTAL2

Time base for the TEA1069 and TEA1069A is a
crystal-controlled on-chip oscillator which is completed by
connecting a 3.579545 MHz crystal or ceramic resonator
between XTAL1 and XTAL2. The oscillator starts when
V

reaches the operation voltage level and

CE/FDI = HIGH. The following types of ceramic
resonators are recommended:

Kyocera PBRC3.58ARPC10 (wired)

Kyocera KBR3.58MSATRPC10 (SMD)

Murata CSA3.58MG310VA (wired).

ESET INPUT

RESET

Pin RESET is an input to the internal reset circuit. When
RESET = HIGH, it can be used to initialize the TEA1069
and TEA1069A which is normally done by the CE/FDI
input. The on-chip power-on reset generates a reset pulse
if V

drops below 2.5 V. In this event a proper start-up

occurs after the supply voltage rises above the minimum
operation voltage level again.
During and directly after reset pins 14 to 19, 21, 29 to 32,
34 and 35 are set HIGH; pins 8, 20, 22, 26 to 28 and 33
are set to LOW.

The RESET pin can be connected to V

, preferably via a

resistor of 100 k

to 1 M

, which will save leakage

current. A capacitor connected to V

can be used to

extend the reset time, in case a longer reset is desirable.

To prevent the dialler from reacting on voltage
disturbances on the telephone line a time-out is active.
The dialler returns to standby state if the voltage on the line
has disappeared for more than this reset-delay time (t

HIP

NABLE

REQUENCY

ISCRIMINATOR

NPUT

CE/FDI

This active HIGH input is used to initialize part of the
system, to select the on-line, standby, or ringer mode and
to detect line power breaks. To keep the TEA1069 and
TEA1069A in the on-line mode, CE/FDI has to be HIGH.

In the exchange, several AC signals can be superimposed
on the DC signal, e.g. dialling tone, busy tone,
disturbances (like line power breaks), and the ringer
signal. The ringer signal is evaluated, and checked if its
frequency is within the limits of the frequency interval as
set by the diode option RFS. It is assumed that the ringer
frequency at pin CE/FDI is the double of the frequency
present on the telephone line.

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

Fig.12 Ringer frequency detection.

handbook, full pagewidth

CE/FDI

TONE

MBH200

VDD

VEE

sample

time

ringer response delay

(

1.5 frequency cycle)

sync

time

In case of a valid ringer signal the user is alerted through
a melody at the TONE output, generated by the ringer part
of the TEA1069 and TEA1069A. This melody follows the
cadence of the ringer signal. Both the melody and the
volume can be selected. The melody frequency and
duration are given in Table 2.

Table 2

Ringer melodies

RADLE SWITCH INPUT

CSI

To distinguish among different operating states after
CE/FDI is activated, input CSI is used. The basic states
are shown in Table 3.

Table 3

TEA1069 and TEA1069A basic states

NAME

FREQUENCY (Hz)

DURATION (ms)

Bell 1

800 + 1066 + 1333

28 + 28 + 28

Bell 2

826 + 925 + 1027

28 + 28 + 28

Bell 3

1037 + 1161 + 1297 28 + 28 + 28

Bell 4

1297 + 1455 + 1621 28 + 28 + 28

INPUT CSI

INPUT CE/FDI

STATE

LOW

standby

HIGH

LOW

not applicable

LOW

HIGH

ringer

HIGH

on-line

For the hands-free state refer to Fig.23.

ULSE DIALLER

PINS

DP/FL, MOH/DMO

AND

MUTE

The pulse dialling system uses line current interruptions to
signal the digits dialled to the exchange. The number of
line current interruptions corresponds with the digit dialled
except for the digit [0] which is characterized by
10 interruptions. Before each digit there is an inter-digit
pause.

Valid keys are the digits [0] to [9] and [PAUSE].

The pulse dialling mode, the make/break ratio and the
access pause time depend on the diode options: PTS,
M/B, APT and APT2. DP/FL is LOW when V

is below

power-on reset trip level and when RESET is HIGH.

The MOH/DMO pin (diode GOS = on) is used to reduce
the voltage swing over the a/b terminals during pulse
dialling. Several countries require this feature. The MUTE
pin is an open drain output which requires a pull-up
resistor. MUTE is HIGH when V

is below power-on reset

trip level and when RESET is HIGH.

Figure 13 shows the timing diagram in pulse dialling mode
when keys [3], [RECALL] and [4] are pressed.

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

Fig.13 Timing diagram in pulse dialling mode.

= break time.

= make time.

idp

= interdigit pause time.

= recall time.

holdover

= hold-over time.

interflash

= interflash hold-over time (only for TEA1069A).

handbook, full pagewidth

MBH201

[3]

KEYS

MUTE

DP/FL

MOH/DMO

[recall]

[4]

tidp

tholdover

tinterflash

trc

ONE DIALLER

PINS

TONE

AND

MUTE

In this system digits are transmitted as two tones
simultaneously, the so called Dual-Tone Multi-Frequency
(DTMF) system. Tone digits are separated by a pause
time. Valid keys are the digits [0] to [9], [

], [#] and

[PAUSE].

The DTMF dialling mode, the tone burst/pause times and
the access pause time depend on the diode options: PTS,
TBT, APT and APT2.

The MUTE pin is an open drain output which requires a
pull-up resistor. MUTE is HIGH when V

is below

power-on reset trip level and when RESET is HIGH.

Figure 14 shows the timing diagram in tone dialling mode
when successively keys [3], [3], [RECALL] and [4] are
dialled.

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

The DC-level at the TONE output measures

and the impedance is typically 100

. DTMF frequencies are

composed by transmitting 2 tones simultaneously at pin TONE. The frequency tolerance for the tones at output TONE
is shown in Table 4.

Table 4

DTMF frequency tolerances

DTMF FREQUENCY

FREQUENCY AT TONE

DEVIATION (%)

DEVIATION (Hz)

697

697.90

+0.13

+0.90

770

770.46

+0.06

+0.46

852

850.45

0.18

1.55

941

943.23

+0.24

+2.23

1209

1206.45

0.21

2.55

1336

1341.66

+0.42

+5.66

1477

1482.21

+0.35

+5.21

Fig.14 Timing diagram in tone dialling mode.

= burst time.

= pause time.

holdover

= hold-over time.

= recall time.

interflash

= interflash hold-over time (only for TEA1069A).

Note: in case of manual dialling only the minimum tone burst and pause time values depend on the chosen diode option, the maximum tone burst/pause
times are equal to the real key press/release time.

handbook, full pagewidth

MBH202

[3]

MUTE

KEYS

DP/FL

TONE

[recall]

[4]

tp + tholdover

tholdover

trc

tinterflash

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

EGISTER RECALL

PINS

DP/FL

AND

KT/EARTH

The RECALL function results in a calibrated pulse which drives the electronic line current interrupter via pin DP/FL or
KT/EARTH. Flash or earth selection and various flash interruption times depend on the diode options: FES A and FES B
(diode GOS = on; see Fig.15).

Fig.15 Recall mode timing diagram.

= key pressed time (depends on user).

holdover

= hold-over time.

idp

= interdigit pause time.

interflash

= interflash hold-over time (only for TEA1069A).

a. Recall using flash; t

= recall time using flash.

b. Recall using earth; t

= recall time using earth.

handbook, full pagewidth

MBH203

recall

KEY

DP/FL

trc

tholdover

MUTE

tkd

tholdover

recall

KEY

KT/EARTH

tea

MUTE

tkd

tinterflash

tidp

EYBOARD

PINS

ROW1

ROW5

AND

COL1

COL6

The sense columns inputs and scanning rows outputs are
directly connected to a single contact keyboard matrix.
A second key entry will be valid after having released the
first button and after having pressed the second button.
Simultaneously pressing 2 buttons will disable the first
entered key. A key entry becomes valid when the
debounce time t

has elapsed.

The column and row pins (except ROW5) are HIGH when
V

is below power-on reset trip level and when RESET is

HIGH.

ROW5 is an open-drain input/output; this configuration is
used to avoid current flowing in the on-line or standby
state. A pull-up resistor should be connected to ROW5.
ROW5 is LOW when V

is below power-on reset trip level

and when RESET is HIGH.

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

IODE OPTIONS

DIODE

The DIODE pin is connected to the keyboard matrix as
shown in Fig.20.

The diode options are read after each reset of the dialler.

Fig.20 Diode connection.

handbook, halfpage

MBH208

off

ROW/COLUMN

DIODE

Table 5

DIODE functions; TEA1069

Note

1. on means option diode present; off means option diode not present.

Table 6

DIODE functions; TEA1069A

Note

1. on means option diode present; off means option diode not present.

DIODE

FUNCTION

CONDITION

(1)

OFF

(1)

FES A

flash/earth time select

FES B = off

flash of 270 ms

flash of 100 ms

FES B = on

earth of 400 ms

flash of 600 ms

TBT

tone burst/pause time

85/85 ms

100/100 ms

GOS

german output select

pin 8 = earth;
pin 27 = DMO

pin 8 = keytone;
pin 27 = MOH

KBS

keyboard select

keyboard layout;
see Figs 17 and 18

keyboard layout;
see Fig.19

PTS

pulse/tone selection

pulse mode

DTMF mode

APT

access pause time

APT2 = off

4 s

2 s

HMS

hold/mute select

hold mode

mute mode

RFS

ringer frequency select

29 to 146 Hz

40 to 120 Hz

M/B

make/break ratio

3 : 2

2 : 1

DIODE

FUNCTION

CONDITION

(1)

OFF

(1)

FES A

flash/earth time select

FES B = off

flash of 270 ms

flash of 100 ms

FES B = on

earth of 400 ms

flash of 600 ms

TBT

tone burst/pause time

85/85 ms

100/100 ms

GOS

german output select

pin 8 = earth;
pin 27 = DMO

pin 8 = keytone;
pin 27 = MOH

KBS

keyboard select

keyboard layout;
see Fig.19

keyboard layout;
see Figs 17 and 18

PTS

pulse/tone selection

pulse mode

DTMF mode

APT

access pause time

APT2 = off

4 s

1 s

APT2 = on

3 s

2 s

HMS

hold/mute select

hold mode

mute mode

RFS

ringer frequency select

40 to 120 Hz

29 to 146 Hz

M/B

make/break ratio

3 : 2

2 : 1

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

EY TONE

KT/EARTH

Every time a valid key is pressed a keytone is generated
with a frequency of 606 Hz and a duration of 30 ms. This
function is selected by the diode GOS = off. KT/EARTH is
LOW when V

is below power-on reset trip level and

when RESET is HIGH.

OLUME CONTROL

PINS

VOL1

AND

VOL2

Both pins can control the volume of the ringer and/or the
hands-free circuit. The state of VOL1/VOL2 is controlled
by a state machine as depicted in Fig.24.

VOL1 and VOL2 are push-pull outputs. Both are set LOW
when V

is below power-on reset trip level and when

RESET is HIGH.

USIC

HOLD

MOH/DMO

When the dialler is in the hold state (see Fig.23) a melody
is generated via pin TONE. In this state pin MOH/DMO can
be used via diode GOS = off as an enable signal for the
hardware to indicate that the tone should be switched to
the telephone line.

MOH/DMO is a push-pull output. It is set LOW when V

is below power-on reset trip level and when RESET is
HIGH.

ANDS

FREE

During the on-line state, the hands-free output pin HF is
used for enabling the hands-free hardware. The pin will
change state depending on specific key-sequences
(see Fig.23).

HF is a push-pull output. It is set LOW when V

is below

power-on reset trip level and when RESET is HIGH.

HOLD

MODE

HOLD

One way to terminate the hold state (see Fig.23) is a
change in state of the signal at pin HOLD. This input
should reflect the line current. If current is flowing the
signal at pin HOLD should be HIGH, if not it should be
LOW.

This pin is not debounced. The signal applied should be
filtered by the hardware. HOLD is HIGH when V

is below

power-on reset trip level and when RESET is HIGH.

Key sequences

The behaviour of the TEA1069 and TEA1069A can be
modelled as a State Transition Diagram (STD) shown in
Fig.21.

Fig.21 TEA1069 and TEA1069A dialler/ringer states.

handbook, full pagewidth

MBH209

STANDBY

power-on

ON-LINE

RINGER

on-hook/[HOOK]

off-hook/[HOOK]

ringer signal

ringer invalid

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

The STD contains the states (rectangles in the figure) and
state transitions (arrows) of the set. The upper arrow in the
figure pointing to the standby state means that the set is
initially in the standby state. When for instance an
incoming call is detected, the set enters the ringer state,
waiting for a reaction of the user. If the user answers the
call on a handset, the set enters the on-line state.

The TEA1069 and TEA1069A have 3 basic states:

Standby state

Ringer state

On-line state.

Each state with its own functional requirements is
described in the following sections.

TANDBY STATE

In standby state the TEA1069 and TEA1069A are inactive.
The current drawn is for memory retention and depends on
the loads of the inputs/outputs of the dialler. In this state
output DP/FL is HIGH so that the line is disconnected.

The ICs leave the standby state if:

The set goes off-hook (lift handset or press [HOOK])

A ringer-signal is available on the line.

The ICs go to the standby state if:

The set goes on-hook
(handset on the cradle or press [HOOK])

A line-break occurs for at least the reset delay time (t

)

The ringer-signal becomes invalid.

INGER STATE

If the set is in standby mode, a ringer signal can be
received from the line. After evaluating the incoming ringer
signal (and ringer signal is valid), the TEA1069 and
TEA1069A start a melody via the TONE output ringer
hardware, and stops this melody if the ringer signal is not
valid any more. After going off-hook, the ringer signal stops
and the set is in conversation (on-line) state.

During a ringer burst the ringer volume can be changed
according to Fig.24 and melodies can be changed
according to Table 7.

Table 7

Melody selection

LINE STATE

In this paragraph all the actions of the TEA1069 and
TEA1069A during on-line state are described. The on-line
mode starts with making output DP/FL LOW, which makes
line current flow possible. The on-line state contains a
number of sub-states (see Fig.22):

Conversation state

Dialling state

Memory recall state

Program state.

MELODY

KEY

Bell 1

[1]

Bell 2

[2]

Bell 3

[3]

Bell 4

[4]

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

Fig.23 Conversation states.

handbook, full pagewidth

MBH211

STANDBY

HOLD

HANDSET

MUTE

HANDSFREE

[HOLD/MUTE]

HMS = off

[HOLD/MUTE]

HMS = on

[HOLD/MUTE]

HMS = on

[HOLD/MUTE]

HMS = off

[HOLD/MUTE]

[HOOK]

on-hook

[HOOK]

off-hook

on-hook

off-hook

on-hook

on-hook + pin HOLD = LOW

CONVERSATION

Handset state.

The conversation states are shown in Fig.23.

Hands-free state.

In hands-free mode output HF becomes HIGH which
activates a TEA1093/1094 hands-free IC. This state can
be reached from standby state and from the handset
state as follows:

the [HOOK] key is pressed during standby mode

the [HOOK] key is pressed during handset state is

lifted, then when the handset is put on the cradle the
set stays in the hands-free mode.

The set leaves the hands-free mode and output HF
becomes LOW when:

the [HOOK] key is pressed and the handset is on the

cradle, the set goes to the standby mode

the [HOOK] key is pressed and the handset is lifted,

the set goes to the handset state.

The volume on the loudspeaker or buzzer, in hands-free
and ringer mode, can be controlled in four levels using
the [VOL+] and [VOL

] keys.

The hands-free volume can be changed according to
Fig.24.

Hold state.

The hold state is entered when the [HOLD/MUTE] key is
pressed (diode HMS = on). This state can be entered
either from handset state or from hands-free state. Upon
entering this state outputs HF and MUTE become LOW.

In hold state a music-on-hold melody is generated by
output TONE. Pin MOH/DMO is HIGH (diode
GOS = off) during this state. This signal can be used to
adjust the volume of the TONE pin. Since MUTE is LOW
the TONE output is transmitted to the telephone line.
As long as the TEA1069 and TEA1069A are in this state
the HOLD input pin is tested.

The set leaves the hold state when:

[HOLD/MUTE] is pressed, the set returns to either the

handset or hands-free state

the HOLD input becomes LOW, now the TEA1069

and TEA1069A return to the standby state.

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

Mute state.

When the [HOLD/MUTE] key is pressed (HMS = off) the
mute state is entered and MUTE becomes LOW.

In mute state a music-on-hold melody is generated by
output TONE. Pin MOH/DMO is HIGH (diode
GOS = off) during this state.
This signal can be used to adjust the volume of the
TONE pin. Since MUTE is LOW the TONE output is
transmitted to the telephone line. The mute state is left
when:

[HOLD/MUTE] is pressed, set returns to either

handset- or hands-free state

a dial action is started.

Dialling state

During the dial-keys entries the TEA1069 and TEA1069A
start immediately with transmission of the digit(s); the
minimum transmission time is unaffected by the speed of
the entry. Transmission continues as long as further
dial-keys entries have to be processed.

Fig.24 Volume control state machine.

(1) VOL1 = HIGH, VOL2 = HIGH.

(2) VOL1 = LOW, VOL2 = HIGH.

(3) VOL1 = HIGH, VOL2 = LOW.

(4) VOL1 = LOW, VOL2 = LOW.

handbook, halfpage

MBH212

HIGHEST

HIGH

[VOL

]

[VOL

]

LOW

[VOL

]

[

VOL

]

LOWEST

[VOL

]

[VOL

]

[VOL

]

[VOL

]

(4)

(3)

(2)

(1)

However when keying-in is much faster then dialling-out,
then the 32 digit dialling register will overflow. When this
occurs the dialling is stopped and the error beep will be
generated.

There are two dial modes: pulse dialling and tone dialling.
The initial dialling mode is determined by option PTS.
The state machine which controls the dial mode is shown
in Fig.25.

Pulse dialling.

In this mode all valid keys are dialled by the pulse dialler.
When during pulse dialling key [

/T] is pressed, the

TEA1069 and TEA1069A switch over to tone dialling
(mixed mode dialling). After the switch-over, valid keys
are dialled by the tone dialler. The temporary tone mode
is terminated by going on-hook or recall.

Tone dialling.

The ICs convert valid keys into data for the on-chip
DTMF generator. Tones are transmitted via output
TONE with minimum tone burst/pause duration.
The maximum tone burst/pause duration is equal to the
key pressing/release time.

The [RECALL] key will result in a flash or earth action.

Access pause.

When the [PAUSE/LNR] button is not the first key
pressed, an access pause is entered for repertory or
redialling procedures. When an access pause is
executed MUTE is HIGH. During manual dialling no
access pauses are dialled.

Last Number Redial (LNR).

If the first key pressed is the [PAUSE/LNR] button, the
number stored in the redial register is recalled and
transmitted. A maximum number of 32 digits can be

Fig.25 Dialling mode state machine.

handbook, halfpage

MBH213

PULSE DIALLING

PTS = on

PTS = off

TONE DIALLING

[

]

[

RECALL

]

PTS = on

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

accepted for last number redial. If this maximum is
reached the redial function is inhibited. During LNR
programmed access pauses are also dialled.
The [RECALL] key and the (in pulse dialling mode
allowed) tone switch key [

/T] are also stored in LNR

memory.

Notepad function.

In conversation state it is possible to store a number into
the LNR register, which may be dialled after an
on-hook/off-hook action. The procedure is as follows:

press [STORE]

press to-be-stored sequence of the digits [0] to [9],

[PAUSE/LNR], [

/T] or [RECALL]

press [STORE]

press [PAUSE/LNR].

Memory recall state

Repertory numbers can be dialled-out after or before
entering manual dialling, last number redial and by
entering the memory locations in successive order.

The stored numbers can be dialled by the following
procedures:

Press [MRC]

Press one of the numeric keys [0] to [9], corresponding
to the memory location

Press one of the direct memory keys ([M1] to [M10]).

Program state

The program mode can be entered from the conversation
(on-line) mode.

Pressing the [STORE] key in this state puts the TEA1069
and TEA1069A in the program mode. The program state
can be left by going on-hook (by putting the handset on the
cradle or pressing the [HOOK] key), the program mode is
interrupted and nothing is stored, or by ending the store
procedures resulting in a proper store of the programmed
item.

Programming repertory numbers.

Storing of a new repertory number including access
pauses, tone switch and register recall can be done by
the following procedures:

press [STORE]

press to-be-stored sequence of the digits [0] to [9],

[PAUSE/LNR], [

/T] or [RECALL]

press [MRC]

press one of the numeric keys [0] to [9],

corresponding to the memory location

press [STORE]

press to-be-stored sequence of the digits [0] to [9],

[PAUSE/LNR], [

/T] or [RECALL]

press [M1] to [M10].

For storing the redial number in repertory use:

press [STORE]

press [PAUSE/LNR]

press [MRC]

press one of the numeric keys [0] to [9],

corresponding to the memory location

press [STORE]

press [PAUSE/LNR]

press [M1] to [M10].

If the keyboard described in Fig.17 is selected by the
KBS diode option, repertory memory place
[M1] = [MRC] + [1] to [M10] = [MRC] + [0], thus the set
has 10 repertory numbers which can be selected via two
different ways.

If the keyboard described in Fig.19 is selected by the
KBS diode option repertory memory place
[MRC] + [0] to [MRC] + [9] and [M1], [M2] and [M3] are
different repertory numbers, thus this set has in total
13 repertory numbers.

Memory overflow.

A maximum of 224 digits can be stored in the repertory
memories. When the maximum is reached, no keytone
is generated when trying to store more digits. The store
procedure is cancelled automatically.

Clear repertory number.

Clearing a memory location is possible via the same
procedure as for storing a number, except no telephone
number is entered, thus one of the following sequences
must be used:

press [STORE]

press [MRC]

press one of the numeric keys [0] to [9],

corresponding to the memory location

press [STORE]

press [M1] to [M10].

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

Notes

1. Mostly dependent on the maximum required T

amb

and on the voltage between LN and SLPE (see Fig.26 for

TEA1069N or Fig.27 for TEA1069H and TEA1069AH).

2. Calculated for the maximum specified ambient temperature (T

amb

= 70

C, see also Fig.26 for TEA1069N or Fig.27

for TEA1069H and TEA1069AH).

THERMAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

line

line current

R9 = 20

; note 1

140

ground supply current through V

tot

total power dissipation

R9 = 20

; note 2

TEA1069N

770

TEA1069H and TEA1069AH

300

amb

operating ambient temperature

+70

stg

IC storage temperature

+125

Speech part

positive continuous line voltage

LN(R)

repetitive line voltage during switch-on or line
interruption

13.2

input voltage on pin V

input voltage on pins 1 to 7, 37, 38, 39, 41, 42

0.7

+ 0.7 V

Dialler/ringer part

supply voltage

0.7

input voltages on pins 8 to 22, 24, 26 to 35

0.7

+ 0.7 V

DC input current on pins 8 to 22, 24, 26 to 35

+10

DC output current on pins 8 to 22, 24, 26 to 35

+10

power dissipation per output on pins 8 to 22,
24, 26 to 35

SYMBOL

PARAMETER

VALUE

UNIT

th j-a

thermal resistance from junction to ambient in free air mounted on
glass epoxy board 28.5

19.1

1.5 mm

TEA1069N

K/W

TEA1069H and TEA1069AH

116

K/W

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

CHARACTERISTICS

line

= 11 to 140 mA; V

= 0 V; f = 1 kHz; V

= 3 V; f

xtal

= 3.579545 MHz; T

amb

= 25

C; unless otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Speech part

UPPLIES

AND

(

PINS

AND

36)

voltage drop over circuit between
LN and V

MIC inputs open-circuit

line

= 1 mA

1.6

line

= 4 mA

1.9

line

= 15 mA

3.55

4.0

4.25

line

= 100 mA

4.9

5.7

6.5

line

= 140 mA

7.5

variation with temperature

line

= 15 mA

0.3

mV/K

voltage drop over circuit between
LN and V

with external resistor

line

= 15 mA

(LN to REG) = 68 k

3.5

(REG to SLPE) = 39 k

4.5

supply current

= 2.8 V

0.9

1.35

supply voltage available for
peripheral circuitry

line

= 15 mA; MUTE = LOW

= 1.2 mA

2.2

2.7

= 0 mA

3.4

ICROPHONE INPUTS

MIC

AND

MIC+ (

PINS

AND

input impedance

differential

between MIC

and MIC+

single-ended

MIC

or MIC+ to V

CMRR

common mode rejection ratio

voltage gain MIC+ or MIC

to LN

line

= 15 mA; R7 = 68 k

50.5

52.0

53.5

v(f)

gain variation with frequency
referenced to 800 Hz

f = 300 and 3400 Hz

0.2

v(T)

gain variation with temperature
referenced to 25

without R6; I

line

= 50 mA;

amb

25 to +70

0.2

DTMF

INPUT

(

input impedance

20.7

voltage gain from DTMF to LN

line

= 15 mA; R7 = 68 k

24.0

25.5

27.0

v(f)

gain variation with frequency
referenced to 800 Hz

f = 300 and 3400 Hz

0.2

v(T)

gain variation with temperature
referenced to 25

line

= 50 mA;

amb

25 to +70

0.2

AIN ADJUSTMENT INPUTS

GAS1

AND

GAS2 (

PINS

AND

42)

transmitting amplifier gain
variation by adjustment of R7
between GAS1and GAS2

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

ENDING AMPLIFIER OUTPUT

LN (

40)

LN(rms)

output voltage (RMS value)

THD = 10%

line

= 4 mA

0.8

line

= 15 mA

1.7

2.3

no(rms)

noise output voltage (RMS value) I

line

= 15 mA; R7 = 68 k

;

200

between MIC

and

MIC+; psophometrically
weighted (P53 curve)

dBmp

ECEIVING AMPLIFIER INPUT

IR (

input impedance

ECEIVING AMPLIFIER OUTPUT

QR (

output impedance

voltage gain from IR to QR

line

= 15 mA; R

= 300

(from pin 9 to pin 4)

29.5

32.5

v(f)

gain variation with frequency
referenced to 800 Hz

f = 300 and 3400 Hz

0.2

v(T)

gain variation with temperature
referenced to 25

without R6; I

line

= 50 mA;

amb

25 and +70

0.2

o(rms)

output voltage (RMS value)

THD = 2%; sine wave drive;
R4 = 100 k

; I

line

= 15 mA;

= 0 mA

= 150

0.22

0.33

= 450

0.3

0.48

THD = 10%; R4 = 100 k

;

= 150

; I

line

= 4 mA

no(rms)

noise output voltage (RMS value) I

line

= 15 mA; R4 = 100 k

;

IR open-circuit
psophometrically weighted
(P53 curve); R

= 300

AIN ADJUSTMENT INPUT

GAR (

receiving amplifier gain variation
by adjustment of R4 between
GAR and QR

MUTE (

35)

GAIN REDUCTION

MIC+ or MIC

to LN

MUTE = LOW

voltage gain from DTMF to QR

R4 = 100 k

; R

= 300

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

UTOMATIC GAIN CONTROL INPUT

AGC (

38)

gain control range (controlling the
gain from IR to QR and the gain
from MIC+, MIC

to LN)

R6 = 110 k

(between AGC and V

);

line

= 70 mA

5.8

lineH

highest line current for maximum
gain

R6 = 110 k

lineL

lowest line current for minimum
gain

R6 = 110 k

Dialler part

(

25)

supply voltage

2.5

6.0

DD(MR)

memory retention voltage

1.0

6.0

supply current

DTMF generator off

0.3

0.6

DTMF generator on

0.9

1.8

DD(MR)

memory retention current

standby state, V

= 1.8 V

1.2

POR

power-on reset trip level

1.5

2.0

2.5

NPUTS

OUTPUTS

(

PINS

9, 12

21, 29

34)

LOW level input voltage

0.3V

HIGH level input voltage

0.7V

input leakage

< V

port sink current LOW

= 3 V; V

= 0.4 V

0.7

port pull-up source current HIGH
(not valid for pin 33)

= 3 V; V

= 2.7 V

= 3 V; V

= 0 V

100

300

MUTE (

35)

port sink current LOW

= 3 V; V

= 0.4 V

0.7

UTPUTS

(

PINS

8, 22, 26

28)

port sink current LOW

= 3 V; V

= 0.4 V

0.7

port push-pull source current
HIGH

= 3 V; V

= 2.6 V

0.7

SCILLATOR

(

PINS

AND

11)

transconductance

0.2

0.4

1.0

mA/V

feedback resistor

0.3

1.0

3.0

CE/FDI (

13)

reset delay time

280

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

EYBOARD

(

PINS

AND

33)

keyboard debounce time

access pause time

TEA1069

diodes APT off; APT2 off

diodes APT on; APT2 off

TEA1069A

diodes APT off; APT2 off

diodes APT on; APT2 off

diodes APT off; APT2 on

diodes APT on; APT2 on

DP/FL

OUTPUT

(

20)

idp

interdigit pause time

840

holdover

mute hold-over time

interflash

interflash hold-over time

TEA1069

TEA1069A

960

make time

diode M/B off

diode M/B on

break time

diode M/B off

diode M/B on

recall time using flash

diode FES A off, FES B off

100

diode FES A on, FES B off

270

diode FES A off, FES B on

600

recall time using earth

diode FES A on, FES B on

400

ONE OUTPUT

(

24)

burst time

diode TBT off

100

diode TBT on

pause time

diode TBT off

100

diode TBT on

f/f

frequency deviation

0.6

+0.6

HG(rms)

HGF voltage (RMS value)

158

181

205

LG(rms)

LGF voltage (RMS value)

125

142

160

DC voltage level

output impedance

100

500

pre-emphasis of group

1.5

2.0

2.5

THD

total harmonic distortion

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

APPLICATION INFORMATION

Fig.28 Basic application diagram (continued in Fig.29).

Pin numbers in parenthesis refer to the TEA1069H and TEA1069AH.

(1) Ringer supply voltage.

handbook, full pagewidth

BSP254A

TR1

C20

1 nF

BZX79C
(10 V)

BZX79C

(8.2 V)

TR2

BC558

R20

3.9

R22

470 k

R23

470 k

R21

470 k

130

3.92 k

R11

130

R7
27.4
k

R61
100
k

40 (36)

(1)

R24

TR3

BF420

TR4

BC548C

2.2 M

6 (44)

42 (38)

GAS2

41 (37)

GAS1

39 (35)

DP/FL

SLPE

37 (33)

REG

23 (11, 18 and 23)

VEE

VDD

C16

100 pF

C17

33 nF

100 pF

390

1 nF

R60
100
k

C12
220
nF

C40

2.2 nF

R30

2.2 k

C30

(250 V)

C31

(35 V)

BR211_220

BAS11

D10

1N4148

C32

33 nF

3.58 MHz

D8
1N4148

D9
1N4148

D7
1N4148

1N4148

BZX79C

(18 V)

4.7

(63 V)

R12

820

R40

470 k

R42

C41

2.2

(63 V)

R41
100 k

R32
100 k

Z4
BZX79C
(18 V)

R35
18 k

R33
100 k

R34
1 k

TR5

BC546

40 V (p-p)

TR6

BC556

TR7

BC548

R43
470
k

R44

56 k

VDD

9 (3)

CSI

13 (7)

CE/FDI

10 (4)

XTAL1

11 (5)

XTAL2

12 (6)

RESET

35 (31)

MUTE

28 (24)

VCC

Vrr

TONE

26 (21)

VOL1

22 (17)

VOL2

27 (22)

MOH/DMO

21 (16)

HOLD

8 (2)

KT/EARTH

TEA1069

R1a

619

R1b

C1b

R31

5.6 M

S1-2

S1-1

speech

ring

B/B

MBH214

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

Fig.29 Basic application diagram (continued from Fig.28).

Pin numbers in parenthesis refer to the TEA1069H and TEA1069AH.

(1) Ringer supply voltage.

(2) Only on TEA1069A.

handbook, full pagewidth

MBH215

BZX79C
(5.6 V)

BZX79C (18 V)

(32) 36

C42
470

(10 V)

VCC

(8) 14

COL6

(9) 15

COL5

(10) 16

COL4

(12) 17

COL3

(13) 18

COL2

(14) 19

COL1

(29) 33

ROW5

(28) 32

ROW4

(27) 31

ROW3

(26) 30

ROW2

(25) 29

ROW1

(30) 34

DIODE

COL6

COL5

COL4

COL3

COL2

COL1

ROW5

ROW4

ROW3

ROW2

ROW1

DIODE

(20) 25

(1) 7

VDD

(15) 20

DP/FL

(19) 24

TONE

DTMF

TONE

(1)

TEA1069

C44
100 nF

C14

100 nF

R45
10 k

R46
3.65 k

R4
68.1
k

R14
8.2 k

R16
100

D11

BAT85

C4
560 pF

C7 5.6 nF

C2 10

(63 V)

C15 47

(25 V)

100

(25 V)

TR8
BC548

R47 330

47 k

R48

R17
100

MOH

R6 110 k

(34) 38

AGC

R5 3.65 k

(43) 5

STAB

(40) 2

GAR

C19

150 nF

R15

2.21 k

150 nF

C18

R13

2.21 k

R10

3.32

22.1 k

R49

(39) 1

(42) 4

MIC

(41) 3

MIC

VCC

VDD

Vrr

STORE

S13

S14

S15

S12

S11

S10

MRC

S19

S20

S18

S17

S16

S24

S23

S22

S29

S28

S27

MUTE

S34

PAUSE/LNR

S33

RECALL

S32

D15

1N4148

D24

1N4148

D16

1N4148

D17

1N4148

D18

1N4148

D23

1N4148

D22

1N4148

D21

1N4148

D20

1N4148

D19

1N4148

D14

1N4148

R50

680 k

ROW5

ROW4

ROW3

ROW2

ROW1

COL1

COL2

COL3

COL4

COL5

COL6

VDD

DIODE

FES A

FES B

TBT

GOS

KBS

PTS

APT

HMS

RFS

M/B

APT2

(2)

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

SOLDERING

Introduction

There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.

This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our

"IC Package Databook" (order code 9398 652 90011).

SDIP

OLDERING BY DIPPING OR BY WAVE

The maximum permissible temperature of the solder is
260

C; solder at this temperature must not be in contact

with the joint for more than 5 seconds. The total contact
time of successive solder waves must not exceed
5 seconds.

The device may be mounted up to the seating plane, but
the temperature of the plastic body must not exceed the
specified maximum storage temperature (T

stg max

). If the

printed-circuit board has been pre-heated, forced cooling
may be necessary immediately after soldering to keep the
temperature within the permissible limit.

EPAIRING SOLDERED JOINTS

Apply a low voltage soldering iron (less than 24 V) to the
lead(s) of the package, below the seating plane or not
more than 2 mm above it. If the temperature of the
soldering iron bit is less than 300

C it may remain in

contact for up to 10 seconds. If the bit temperature is
between 300 and 400

C, contact may be up to 5 seconds.

QFP

EFLOW SOLDERING

Reflow soldering techniques are suitable for all QFP
packages.

The choice of heating method may be influenced by larger
plastic QFP packages (44 leads, or more). If infrared or
vapour phase heating is used and the large packages are
not absolutely dry (less than 0.1% moisture content by
weight), vaporization of the small amount of moisture in
them can cause cracking of the plastic body. For more
information, refer to the Drypack chapter in our

"Quality

Reference Handbook" (order code 9397 750 00192).

Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.

Several methods exist for reflowing; for example,
infrared/convection heating in a conveyor type oven.
Throughput times (preheating, soldering and cooling) vary
between 50 and 300 seconds depending on heating
method. Typical reflow peak temperatures range from
215 to 250

AVE SOLDERING

Wave soldering is not recommended for QFP packages.
This is because of the likelihood of solder bridging due to
closely-spaced leads and the possibility of incomplete
solder penetration in multi-lead devices.

If wave soldering cannot be avoided, for QFP
packages with a pitch (e) larger than 0.5 mm, the
following conditions must be observed:

A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave)
soldering technique should be used.

The footprint must be at an angle of 45

to the board

direction and must incorporate solder thieves
downstream and at the side corners.

During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured. Maximum permissible solder
temperature is 260

C, and maximum duration of package

immersion in solder is 10 seconds, if cooled to less than
150

C within 6 seconds. Typical dwell time is 4 seconds

at 250

C. A mildly-activated flux will eliminate the need for

removal of corrosive residues in most applications.

EPAIRING SOLDERED JOINTS

Fix the component by first soldering two diagonally-
opposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300

C. When

using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320

CAUTION

Wave soldering is NOT applicable for all QFP
packages with a pitch (e) equal or less than 0.5 mm.

1998 Jan 08

Philips Semiconductors

Product specification

Versatile speech/dialler/ringer with
music-on-hold

TEA1069; TEA1069A

DEFINITIONS

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.

Data sheet status

Objective specification

This data sheet contains target or goal specifications for product development.

Preliminary specification

This data sheet contains preliminary data; supplementary data may be published later.

Product specification

This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the specification.

Internet: http://www.semiconductors.philips.com

Philips Semiconductors a worldwide company

SCA57

All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.

The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
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under patent- or other industrial or intellectual property rights.

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Printed in The Netherlands

417027/1200/04/pp44

Date of release: 1998 Jan 08

Document order number:

9397 750 03133

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: TEA1069

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: TEA1069