General Description
The MAX9710/MAX9711 are stereo/mono 3W bridge-tied
load (BTL) audio power amplifiers. These devices are
PC99/01 compliant, operate from a single 4.5V to 5.5V
supply, and feature an industry-leading 100dB PSRR,
which allows these devices to operate from noisy sup-
plies without additional, costly power-supply condition-
ing. An ultra-low 0.005% THD+N ensures clean,
low-distortion amplification of the audio signal while
patented click-and-pop suppression eliminates audible
transients on power and shutdown cycles. Power-saving
features include low 2mV V
OS
(minimizing DC current
drain through the speakers), low 7mA supply current,
and a 0.5A shutdown mode. A MUTE function allows
the outputs to be quickly enabled or disabled.
These devices include thermal overload protection, are
specified over the extended -40C to +85C tempera-
ture range, and are supplied in thermally efficient pack-
ages. The MAX9710 is available in either a 20-pin thin
QFN package (5mm
5mm
0.8mm) or a 16-pin
TSSOP-EP package. The MAX9711 is available in a 12-
pin thin QFN package (4mm
4mm
0.8mm).
Applications
Features
o 3W into 3 (1% THD+N)
o 4W into 3 (10% THD+N)
o Industry-Leading, Ultra-High 100dB PSRR
o PC99/01 Compliant
o Patented Click-and-Pop Suppression
o Low 0.005% THD+N
o Low Quiescent Current: 7mA
o Low-Power Shutdown Mode: 0.5A
o MUTE Function
o Tiny 20-Pin Thin QFN (5mm
5mm
0.8mm) and
16-Pin TSSOP-EP Packages
MAX9710/MAX9711
3W Mono/Stereo BTL Audio Power Amplifiers
with Shutdown
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
19-2841; Rev 0; 4/03
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
PART
TEMP RANGE
PIN-PACKAGE
AMP
MAX9710 ETP
-40C to +85C
20-Thin QFN-EP*
Stereo
MAX9710EUE
-40C to +85C
16-TSSOP-EP*
Stereo
MAX9711 ETC
-40C to +85C
12-Thin QFN-EP*
Mono
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
MUTE
BIAS
INL
PGND
OUTL+
PV
DD
OUTL-
PGND
MAX9710
TSSOP
INR
PGND
OUTR-
OUTR+
PV
DD
PGND
V
DD
SHDN
TOP VIEW
SINGLE SUPPLY
4.5V TO 5.5V
MAX9710
LEFT IN
RIGHT IN
Pin Configurations
Simplified Block Diagram
*EP = Exposed paddle.
Notebook PCs
Flat-Panel TVs
Flat-Panel PC Displays
Two-Way Radios
General-Purpose Audio
Powered Speakers
Pin Configurations continued at end of data sheet.
MAX9710/MAX9711
3W Mono/Stereo BTL Audio Power Amplifiers
with Shutdown
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DD
= PV
DD
= 5.0V, GND = PGND = MUTE = 0V, V
SHDN
= 5V, R
IN
= R
F
= 15k
, R
L
=
. T
A
= T
MIN
to T
MAX
, unless otherwise
noted. Typical values are at T
A
= +25C.) (Note 1)
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Note 1: All devices are 100% production tested at +25C. All temperature limits are guaranteed by design.
Note 2: PSSR is specified with the amplifier inputs connected to GND through R
IN
and C
IN
.
V
DD
to GND, PGND ...............................................................+6V
PV
DD
to V
DD
.......................................................................0.3V
PGND to GND.....................................................................0.3V
All Other Pins to GND.................................-0.3V to (V
DD
+ 0.3V)
Continuous Input Current (into any pin
except power supply and output pins).........................20mA
Continuous Power Dissipation (T
A
= +70C)
12-Pin Thin QFN (derate 16.9mW/C above +70C) ....1349mW
16-Pin TSSOP-EP (derate 21.3mW/C above +70C)...1702mW
20-Pin Thin QFN (derate 20.8mW/C above +70C) ....1667mW
Operating Temperature Range............................-40C to +85C
Storage Temperature Range .............................-65C to +150C
Junction Temperature ......................................................+150C
Lead Temperature (soldering, 10s) .................................+300C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range
V
DD
/PV
DD
Inferred from PSRR test
4.5
5.5
V
MAX9710
12
30
Quiescent Supply Current
(I
VDD
+ I
PVDD
)
I
DD
MAX9711
7
17
mA
Shutdown Supply Current
I
SHDN
SHDN = GND
0.5
30
A
C
BIAS
= 1F (10% of final value)
300
Turn-On Time
t
ON
C
BIAS
= 0.1F (10% of final value)
30
ms
Thermal Shutdown Threshold
160
C
Thermal Shutdown Hysteresis
15
C
OUTPUT AMPLIFIERS
Output Offset Voltage
V
OS
V
OUT_+
- V
OUT_-
, A
V
= 2
2
14
mV
V
DD
= 4.5V to 5.5V
82
100
f = 1kHz
87
Power-Supply Rejection Ratio
PSRR
V
RIPPLE
= 200mV
P-P
(Note 2)
f = 20kHz
74
dB
R
L
= 8
1.1
1.4
R
L
= 4
2.6
Output Power
P
OUT
f
IN
= 1kHz,
THD+N < 1%
R
L
= 3
3
W
P
OUT
= 1.2W, R
L
= 8
0.005
Total Harmonic Distortion Plus
Noise
THD+N
f
IN
= 1kHz, BW =
22Hz to 22kHz
P
OUT
= 2W, 4
0.01
%
Signal-to-Noise Ratio
SNR
R
L
= 8
, V
OU T
= 2.8V
RM S
, BW = 22H z to 22kH z
95
dB
Slew Rate
SR
1.6
V/s
Maximum Capacitive Load Drive
C
L
No sustained oscillations
1
nF
Crosstalk
f
IN
= 10kHz
77
dB
BIAS VOLTAGE (BIAS)
BIAS Voltage
V
BIAS
2.35
2.5
2.65
V
Output Resistance
R
BIAS
50
k
DIGITAL INPUTS (MUTE, SHDN)
Input Voltage High
V
IH
2
V
Input Voltage Low
V
IL
0.8
V
Input Leakage Current
I
IN
1
A
MAX9710/MAX9711
3W Mono/Stereo BTL Audio Power Amplifiers
with Shutdown
_______________________________________________________________________________________
3
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAx9710/11 toc01
FREQUENCY (Hz)
THD+N (%)
10k
1k
100
0.01
0.1
1
0.001
10
100k
R
L
= 3
A
V
= -2V/V
P
OUT
= 500mW
P
OUT
= 2.5W
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAx9710/11 toc02
FREQUENCY (Hz)
THD+N (%)
10k
1k
100
0.01
0.1
1
0.001
10
100k
R
L
= 3
A
V
= -4V/V
P
OUT
= 500mW
P
OUT
= 2.5W
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAx9710/11 toc03
FREQUENCY (Hz)
THD+N (%)
10k
1k
100
0.01
0.1
1
0.001
10
100k
R
L
= 4
A
V
= -2V/V
P
OUT
= 250mW
P
OUT
= 2W
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAx9710/11 toc04
FREQUENCY (Hz)
THD+N (%)
10k
1k
100
0.01
0.1
1
0.001
10
100k
R
L
= 4
A
V
= -4V/V
P
OUT
= 250mW
P
OUT
= 2W
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAx9710/11 toc05
FREQUENCY (Hz)
THD+N (%)
10k
1k
100
0.01
0.1
1
0.001
10
100k
R
L
= 8
A
V
= -2V/V
P
OUT
= 250mW
P
OUT
= 1.2W
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. FREQUENCY
MAx9710/11 toc06
FREQUENCY (Hz)
THD+N (%)
10k
1k
100
0.01
0.1
1
0.001
10
100k
R
L
= 8
A
V
= -4V/V
P
OUT
= 250mW
P
OUT
= 1.2W
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
MAX9710/11 toc07
OUTPUT POWER (W)
THD+N (%)
3
2
1
0.01
0.1
1
10
100
0.001
0
4
A
V
= -2V/V
R
L
= 3
f = 20Hz
f = 10kHz
f = 1kHz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
MAX9710/11 toc08
OUTPUT POWER (W)
THD+N (%)
3
2
1
0.01
0.1
1
10
100
0.001
0
4
A
V
= -4V/V
R
L
= 3
f = 20Hz
f = 10kHz
f = 1kHz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
MAX9710/11 toc09
OUTPUT POWER (W)
THD+N (%)
2.5
3.0
1.5
2.0
1.0
0.5
0.01
0.1
1
10
100
0.001
0
3.5
A
V
= -2V/V
R
L
= 4
f = 20Hz
f = 10kHz
f = 1kHz
Typical Operating Characteristics
(V
DD
= 5V, THD+N measurement bandwidth = 22Hz to 22kHz, T
A
= +25C, unless otherwise noted.)
MAX9710/MAX9711
3W Mono/Stereo BTL Audio Power Amplifiers
with Shutdown
4
_______________________________________________________________________________________
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
MAX9710/11 toc10
OUTPUT POWER (W)
THD+N (%)
2.5
3.0
1.5
2.0
1.0
0.5
0.01
0.1
1
10
100
0.001
0
3.5
A
V
= -4V/V
R
L
= 4
f = 20Hz
f = 10kHz
f = 1kHz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
MAX9710/11 toc11
OUTPUT POWER (W)
THD+N (%)
1.5
2.0
1.0
0.5
0.01
0.1
1
10
100
0.001
0
A
V
= -2V/V
R
L
= 8
f = 20Hz
f = 10kHz
f = 1kHz
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER
MAX9710/11 toc12
OUTPUT POWER (W)
THD+N (%)
1.5
2.0
1.0
0.5
0.01
0.1
1
10
100
0.001
0
A
V
= -4V/V
R
L
= 8
f = 20Hz
f = 10kHz
f = 1kHz
OUTPUT POWER
vs. TEMPERATURE
MAX9710/11 toc13
TEMPERATURE (
C)
OUTPUT POWER (W)
60
35
10
-15
1
2
3
4
0
-40
85
THD+N = 10%
THD+N = 1%
f = 1kHz
R
L
= 3
OUTPUT POWER
vs. TEMPERATURE
MAX9710/11 toc14
TEMPERATURE (
C)
OUTPUT POWER (W)
60
35
10
-15
1
2
3
4
0
-40
85
THD+N = 10%
THD+N = 1%
f = 1kHz
R
L
= 4
OUTPUT POWER
vs. TEMPERATURE
MAX9710/11 toc15
TEMPERATURE (
C)
OUTPUT POWER (W)
60
35
10
-15
0.5
1.0
1.5
2.0
0
-40
85
THD+N = 10%
THD+N = 1%
f = 1kHz
R
L
= 8
OUTPUT POWER vs. LOAD RESISTANCE
(FORCED-AIR COOLING)
MAX9710/11 toc16
LOAD RESISTANCE (
)
OUTPUT POWER (W)
100
10
1
2
3
4
5
0
1
1000
THD+N = 10%
THD+N = 1%
V
DD
= 5V
f = 1kHz
POWER DISSIPATION
vs. OUTPUT POWER
MAX9710/11 toc17
OUTPUT POWER (W)
POWER DISSIPATION (W)
2.0
1.5
0.5
1.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0
0
2.5
R
L
= 4
f = 1kHz
POWER DISSIPATION
vs. OUTPUT POWER
MAX9710/11 toc18
OUTPUT POWER (W)
POWER DISSIPATION (W)
1.00
0.75
0.25
0.50
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0
0
1.50
1.25
R
L
= 8
f = 1kHz
Typical Operating Characteristics (continued)
(V
DD
= 5V, THD+N measurement bandwidth = 22Hz to 22kHz, T
A
= +25C, unless otherwise noted.)
MAX9710/MAX9711
3W Mono/Stereo BTL Audio Power Amplifiers
with Shutdown
_______________________________________________________________________________________
5
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX9710/11 toc19
FREQUENCY (Hz)
PSRR (dB)
10k
1k
100
-80
-60
-40
-20
0
-100
10
100k
V
RIPPLE
= 200mV
P-P
CROSSTALK vs. FREQUENCY
MAX9710/11 toc20
FREQUENCY (Hz)
CROSSTALK (dB)
10
1
0.1
-100
-80
-60
-40
-20
0
-120
0.01
100
RIGHT TO LEFT
LEFT TO RIGHT
V
IN
= 200mV
P-P
R
L
= 8
ENTERING SHUTDOWN
MAX9710/11 toc21
R
L
= 8
INPUT AC-COUPLED TO GND
100ms/div
OUT_+ AND
OUT_-
OUT_+ -
OUT_-
SHDN
2V/div
1V/div
200mV/div
EXITING SHUTDOWN
MAX9710/11 toc22
R
L
= 8
INPUT AC-COUPLED TO GND
100ms/div
OUT_+ AND
OUT_-
OUT_+ -
OUT_-
SHDN
2V/div
1V/div
200mV/div
ENTERING POWER-DOWN
MAX9710/11 toc23
R
L
= 8
INPUT AC-COUPLED TO GND
100ms/div
OUT_+ AND
OUT_-
OUT_+ -
OUT_-
V
DD
2V/div
1V/div
200mV/div
EXITING POWER-DOWN
MAX9710/11 toc24
R
L
= 8
INPUT AC-COUPLED TO GND
100ms/div
OUT_+ AND
OUT_-
OUT_+ -
OUT_-
V
DD
2V/div
1V/div
200mV/div
Typical Operating Characteristics (continued)
(V
DD
= 5V, THD+N measurement bandwidth = 22Hz to 22kHz, T
A
= +25C, unless otherwise noted.)
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