TPA731 Datasheet, PDF (15/22 Pages) Texas Instruments – 700-mW MONO LOW-VOLTAGE AUDIO POWER AMPLIFIER WITH DIFFERENTIAL INPUTS

TPA731
700-mW MONO LOW-VOLTAGE AUDIO POWER AMPLIFIER
WITH DIFFERENTIAL INPUTS
SLOS315B – JUNE 2000 – REVISED OCTOBER 2002
APPLICATION INFORMATION
application schematics
Figure 26 is a schematic diagram of a typical handheld audio application circuit, configured for a gain of
–10 V/V.
Audio
Input
RI
10 kΩ
CI
RF
50 kΩ
4 ^{IN –}
3 IN+
VDD/2
–
+
2 BYPASS
CB
2.2 µF
–
+
From System Control
1 SHUTDOWN
Bias
Control
VDD 6
VO+ 5
VDD
CS
1 µF
VO– 8
7
GND
700 mW
Figure 26. TPA731 Application Circuit
Figure 27 is a schematic diagram of a typical handheld audio application circuit, configured for a gain of
–10 V/V with a differential input.
Audio
Input–
RI
10 kΩ
RF
50 kΩ
4 ^{IN –}
CI
Audio
Input+
CI
RI
10 kΩ
CB
2.2 µF
3 IN+
RF
50 kΩ
2 BYPASS
VDD/2
–
+
–
+
From System Control
1 SHUTDOWN
Bias
Control
VDD 6
VO+ 5
VDD
CS
1 µF
VO– 8
7
GND
700 mW
Figure 27. TPA731 Application Circuit With Differential Input
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