TPA6102A2 Datasheet, PDF (1/17 Pages) Texas Instruments – 50 mM ULTRALOW VOLTAGE FIXED-GAIN STEREO HEADPHONE AUDIO POWER AMPLIFIER

TPA6102A2
50ĆmW ULTRALOWĆVOLTAGE, FIXEDĆGAIN STEREO HEADPHONE
AUDIO POWER AMPLIFIER
SLOS324B − JUNE 2000 − REVISED SEPTEMBER 2004
D 50-mW Stereo Output
D Low Supply Current . . . 0.75 mA
D Low Shutdown Current . . . 50 nA
D Minimal External Components Required
D Gain Set Internally to 14 dB
D Pop Reduction Circuitry
D Internal Mid-Rail Generation
D Thermal and Short-Circuit Protection
D Surface-Mount Packaging
− MSOP
− SOIC
D 1.6-V to 3.6-V Supply Voltage Range
D or DGK PACKAGE
(TOP VIEW)
BYPASS
1
8 IN1−
GND
2
7
V_O1
SHUTDOWN
3
6
V_DD
IN2−
4
5
V_O2
description
The TPA6102A2 is a stereo audio power amplifier packaged in either an 8-pin SOIC package or an 8-pin MOSP
package capable of delivering 50 mW of continuous RMS power per channel into 16-Ω loads. Amplifier gain
is internally set to 14 dB (inverting) to save board space by eliminating six external resistors.
The TPA6102A2 is optimized for battery applications because of its low-supply current, shutdown current, and
THD+N. To obtain the low-supply voltage range, the TPA6102A2 biases BYPASS to V_DD/4.
When driving a 16-Ω load with 40-mW output power from 3.3 V, THD+N is 0.08% at 1 kHz, and less than 0.2%
across the audio band of 20 Hz to 20 kHz. For 30 mW into 32-Ω loads, the THD+N is reduced to less than 0.06%
at 1 kHz, and is less than 0.3% across the audio band of 20 Hz to 20 kHz.
typical application circuit
Audio
Input
100 kΩ
8 ^{IN 1− 20 kΩ}
CI
100 kΩ
1 ^BYPASS
CB
Audio
Input
4 ^{IN 2− 20 kΩ}
CI
From Shutdown
Control Circuit
3 ^SHUTDOWN
100 kΩ
100 kΩ
VDD/4
−
+
−
+
Bias
Control
VDD 6
VDD
CS
VO1 7
CC
VO2 5
CC
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright  2004, Texas Instruments Incorporated
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