Datasheet

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PARAMETER MEASUREMENT INFORMATION
Audio
Input
Bias
Control
V
DD
6
5
7
V
O
+
V
DD
1
2
4
BYPASS
IN -
V
DD
/2
C
I
R
I
C
S
1
µ
F
C
B
0.1
µ
F
R
F
SHUTDOWN
V
O
- 8
R
L = 8
Ω
GND
3 IN+
-
+
-
+
TPA321
SLOS312C – JUNE 2000 – REVISED JUNE 2004
Terminal Functions
TERMINAL
I/O DESCRIPTION
NAME NO.
BYPASS is the tap to the voltage divider for internal mid-supply bias. This terminal should be connected
BYPASS 2 I
to a 0.1-µF to 1-µF capacitor when used as an audio amplifier.
GND 7 GND is the ground connection.
IN- 4 I IN- is the inverting input. IN- is typically used as the audio input terminal.
IN+ 3 I IN+ is the noninverting input. IN+ is typically tied to the BYPASS terminal for SE operations.
SHUTDOWN 1 I SHUTDOWN places the entire device in shutdown mode when held high (I
DD
~ 0.15 µA).
V
DD
6 V
DD
is the supply voltage terminal.
V
O
+ 5 O V
O
+ is the positive BTL output.
V
O
- 8 O V
O
- is the negative BTL output.
Figure 1. Test Circuit
4