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TPA6101A2DGK Datasheet

  • TPA6101A2DGK

  • 50 MW ULTRALOW VOLTAGE FIXED GAIN STEREO HEADPHONE AUDIO POW...

  • 19頁

  • TI

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TPA6101A2
50 mW ULTRALOW VOLTAGE, FIXED GAIN STEREO HEADPHONE
AUDIO POWER AMPLIFIER
SLOS331B 鈭?AUGUST 2000 鈭?REVISED SEPTEMBER 2004
D
D
D
D
D
D
D
D
D
D
Minimal External Components Required
1.6-V to 3.6-V Supply Voltage Range
50-mW Stereo Output
Low Supply Current . . . 0.75 mA
Low Shutdown Current . . . 50 nA
Gain Set Internally to 2 dB
Pop Reduction Circuitry
Internal Mid-Rail Generation
Thermal and Short-Circuit Protection
Surface-Mount Packaging
鈭?MSOP
鈭?SOIC
D or DGK PACKAGE
(TOP VIEW)
BYPASS
GND
SHUTDOWN
IN2鈭?/div>
1
2
3
4
8
7
6
5
IN1鈭?/div>
V
O
1
V
DD
V
O
2
description
The TPA6101A2 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-鈩?loads. Amplifier gain
is internally set to 2 dB (inverting) to save board space by eliminating six external resistors.
The TPA6101A2 is optimized for battery applications because of its low-supply current, shutdown current, and
THD+N. To obtain the low-supply voltage range, the TPA6101A2 biases BYPASS to V
DD
/4.
When driving a 16-鈩?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-鈩?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
VDD 6
Audio
Input
8 IN 1鈭?/div>
CI
1 BYPASS
CB
Audio
Input
4 IN 2鈭?/div>
CI
From Shutdown
Control Circuit
3
SHUTDOWN
80 k鈩?/div>
80 k鈩?/div>
鈭?/div>
+
80 k鈩?/div>
Bias
Control
2
VO2 5
CC
80 k鈩?/div>
VDD/4
80 k鈩?/div>
80 k鈩?/div>
鈭?/div>
+
VO1 7
CC
VDD
CS
NOTE: All internal resistor values are
鹵20%.
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.
Copyright
錚?/div>
2004, 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.
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1

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