Description
The CXD1170M is a 6-bit 40MHz high speed D/A
converter. The adoption of a current output system
reduces power consumption to 80mW (200
load at
2Vp-p output).
This IC is suitable for digital TV and graphic
display applications.
Features
Resolution 6-bit
Max. conversion speed 40MSPS
Non linearity error within 0.1LSB
Low glitch noise
TTL CMOS compatible input
+5V single power supply
Low power consumption 80mW
(200
load at 2Vp-p output)
Block Diagram and Pin Configuration
Structure
Silicon gate CMOS IC
Function
6-bit 40MHz D/A converter
1
CXD1170M
E89X37B6X-PS
6-bit 40MSPS High Speed D/A Converter
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
24 pin SOP (Plastic)
CURRENT
CELLS
LATCHES
DECODER
DV
DD
IO
IO
VG
DV
DD
AV
DD
VREF
19
20
21
22
23
24
CLOCK
GENERATOR
NC
NC
(LSB) D0
D1
D2
D3
D4
D5
BLK
DV
SS
VB
CLK
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
CURRENT CELLS
(FOR FULL SCALE)
BIAS VOLTAGE
GENERATOR
DV
SS
IREF
DECODER
AV
SS
AV
DD
AV
DD
For the availability of this product, please contact the sales office.
2
CXD1170M
Absolute Maximum Ratings (Ta = 25C)
Supply voltage
V
DD
7
V
Input voltage
V
IN
V
DD
to V
SS
V
Output current
I
OUT
15
mA
Storage temperature
Tstg
55 to +150
C
Recommended Operating Conditions
Supply voltage
AV
DD
, AV
SS
4.75 to 5.25
V
DV
DD
, DV
SS
4.75 to 5.25
V
Reference input voltage
V
REF
2.0
V
Clock pulse width
Tpw
1
12.5 (Min)
ns
Tpw
0
12.5 (Min)
ns
Operating temperature
Topr
20 to +75
C
Pin Description and I/O Pins Equivalent Circuit
No.
Symbol
Equivalent circuit
Description
10, 13
DV
SS
Digital GND
14
AV
SS
Analog GND
3 to 8
D0 to D5
Digital input
9
BLK
Blanking pin
No signal at "H" (Output 0V)
Output condition at "L"
11
VB
Connect a capacitor of about 0.1F
12
CLK
Clock pin
Moreover all input pins are TTL-CMOS
compatible
DV
DD
DV
SS
to
3
8
DV
DD
DV
SS
9
DV
DD
DV
SS
DV
DD
11
DV
DD
DV
SS
12
3
CXD1170M
No.
Symbol
Equivalent circuit
Description
15
IREF
Connect a resistance 16 times "16R" that of
output resistance value "R"
16
VREF
Set full scale output value
17
VG
Connect a capacitor of about 0.1F
20
IO
Current output pin
Voltage output can be obtained by connecting
a resistance
21
IO
Inverted current output pin
Normally dropped to analog GND
23, 24
DV
DD
Digital V
DD
18, 19, 22
AV
DD
Analog V
DD
AV
SS
AV
SS
AV
DD
AV
DD
AV
SS
AV
DD
AV
DD
15
16
17
AV
DD
AV
SS
AV
DD
AV
SS
20
21
Eleoctrical Characteristics
(f
CLK
= 40MHz, V
DD
= 5V, R
OUT
= 200
, V
REF
= 2.0V, Ta = 25C)
Item
Resolution
Maximum conversion speed
Minimum conversion speed
Linearity error
Differential linear error
Full scale output voltage
Full scale output current
Offset output voltage
Power supply current
Digital
input current
Setup time
Hold time
Propagation delay time
Glitch energy
Measurement conditions
14.3MHz, at COLOR BAR DATA input
R
OUT
= 75
Min.
0.5
0.3
0.1
1.85
13
5
5
10
Typ.
6
1.95
10
14.5
10
30
Max.
40
0.5
0.1
2.05
15
1
16
5
Unit
bit
MSPS
MHz
LSB
LSB
V
mA
mV
mA
A
A
ns
ns
ns
pV-s
Symbol
n
f
MAX
f
MIN
E
L
E
D
V
FS
I
FS
V
OS
I
DD
I
IH
I
IL
t
S
t
H
t
PD
GE
High level
Low level
4
CXD1170M
Maximum conversion speed test circuit
CLK
40MH
Z
SQUARE
WAVE
CLK
0.1
200
OSCILLOSCOPE
BLK
VB
IO
VG
VREF
IREF
1k
AVss
0.1
3.3k
AV
DD
3
4
8
9
11
12
15
16
17
20
D5
D0 (LSB)
6bit
COUNTER
with
LATCH
2V
DC characteristics test circuit
CLK
40MH
Z
SQUARE
WAVE
CLK
0.1
200
BLK
VB
IO
VG
VREF
IREF
1k
AVss
0.1
3.3k
AV
DD
3
4
8
9
11
12
15
16
17
20
D5
D0 (LSB)
DVM
2V
CONTROLLER
Propagation delay time test circuit
CLK
10MH
Z
SQUARE
WAVE
CLK
0.1
200
OSCILLOSCOPE
BLK
VB
IO
VG
VREF
IREF
1k
AVss
0.1
3.3k
AV
DD
3
4
8
9
11
12
15
16
17
20
D5
D0 (LSB)
FREQUENCY
DEMULTIPLIER
Setup hold time and glitch energy test circuit
CLK
1MH
Z
SQUARE
WAVE
CLK
0.1
75
OSCILLOSCOPE
BLK
VB
IO
VG
VREF
IREF
1k
AVss
0.1
1.2k
AV
DD
3
4
8
9
11
12
15
16
17
20
D5
D0 (LSB)
6bit
COUNTER
with
LATCH
1V
DELAY
CONTROLLER
DELAY
CONTROLLER
5
CXD1170M
Operation
Timing Chart
T
PW1
T
PW0
CLK
t
S
t
H
t
S
t
H
t
S
t
H
DATA
t
PD
D/A OUT
50%
100%
0%
t
PD
t
PD
Application Circuit
DV
DD
(LSB)
AV
DD
200
0.1
2V
0.1
1k
3.3k
DGND
D/A OUT
AGND
19
20
21
22
23
24
13
14
15
16
17
18
6bit
DIGITAL
INPUT
2
3
4
5
6
7
8
9
10
11
12
1
I/O Chart (when full scale output voltage at 2.00V)
Input code
MSB LSB
1 1 1 1 1 1
:
1 0 0 0 0 0
:
0 0 0 0 0 0
Output voltage
2.0V
1.0V
0V
Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for
any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same.
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