TPA102_14 Datasheet, PDF (1/26 Pages) Texas Instruments – 150-mW STEREO AUDIO POWER AMPLIFIER

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TPA102
SLOS213D – AUGUST 1998 – REVISED SEPTEMBER 2004
150-mW STEREO AUDIO POWER AMPLIFIER
FEATURES
• 150 mW Stereo Output
• PC Power Supply Compatible
– Fully Specified for 3.3 V and 5 V Operation
– Operation to 2.5 V
• Pop Reduction Circuitry
• Internal Mid-Rail Generation
• Thermal and Short-Circuit Protection
• Surface-Mount Packaging
– PowerPAD™ MSOP
• Pin Compatible With LM4881
DGN PACKAGE
(TOP VIEW)
BYPASS 1
8
IN1–
GND 2
7
V_O1
SHUTDOWN 3
6
V_DD
IN2– 4
5
V_O2
DESCRIPTION
The TPA102 is a stereo audio power amplifier packaged in an 8-pin PowerPAD™ MSOP package capable of
delivering 150 mW of continuous RMS power per channel into 8-Ω loads. Amplifier gain is externally configured
by means of two resistors per input channel and does not require external compensation for settings of 1 to 10.
THD+N when driving an 8-Ω load from 5 V is 0.1% at 1 kHz, and less than 2% across the audio band of 20 Hz to
20 kHz. For 32-Ω loads, the THD+N is reduced to less than 0.06% at 1 kHz, and is less than 1% across the
audio band of 20 Hz to 20 kHz. For 10-kΩ loads, the THD+N performance is 0.01% at 1 kHz, and less than
0.02% across the audio band of 20 Hz to 20 kHz.
TYPICAL APPLICATION CIRCUIT
Audio
Input
R_I
C_I
Audio
Input
C_B
R_I
C_I
325 kΩ
R_F
8 ^IN1–
1 ^BYPASS
4 ^IN2–
325 kΩ
V_DD/2
–
+
–
+
V_DD 6
V_O1 7
V_O2 5
From Shutdown
Control Circuit
3 ^SHUTDOWN
R_F
Bias
2
Control
V_DD
C_S
C_C
C_C
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1998–2004, Texas Instruments Incorporated