TPA152
75-mW STEREO AUDIO POWER AMPLIFIER
SLOS210A – JUNE 1998 – REVISED MARCH 2000
D PACKAGE
(TOP VIEW)
High-Fidelity Line-Out/HP Driver
75-mW Stereo Output
PC Power Supply Compatible
Pop Reduction Circuitry
V 1
O
IN1–
GND
1
2
3
4
8
7
6
5
MUTE
BYPASS
IN2–
V
DD
Internal Mid-Rail Generation
Thermal and Short-Circuit Protection
Surface-Mount Packaging
Pin Compatible With TPA302
V 2
O
description
The TPA152 is a stereo audio power amplifier capable of less than 0.1% THD+N at 1 kHz when delivering
75 mW per channel into a 32-Ω load. THD+N is less than 0.2% across the audio band of 20 to 20 kHz. For
10 kΩ loads, the THD+N performance is better than 0.005% at 1 kHz, and less than 0.01% across the audio
band of 20 to 20 kHz.
The TPA152 is ideal for use as an output buffer for the audio CODEC in PC systems. It is also excellent for use
where a high-performance head phone/line-out amplifier is needed. Depop circuitry is integrated to reduce
transients during power up, power down, and mute mode.
Amplifier gain is externally configured by means of two resistors per input channel and does not require external
compensationfor settings of 1 to 10. The TPA152 is packaged in the 8-pin SOIC (D) package that reduces board
space and facilitates automated assembly.
typical application circuit
R
F
6
1
V
DD
C
Stereo Audio
Input
B
R
I
C
IN1–
C
8
V
O
1
R
–
R
C
3 BYPASS
C
+
I
C
B
R
R
L
Depop
Circuitry
L
From System
Control
Mute
Control
2
4
Stereo
R
I
IN2–
C
C
–
L
V
O
2
5
C
I
+
R
C
R
F
Copyright 2000, Texas Instruments Incorporated
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.
1
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