G1432 Datasheet, PDF (9/15 Pages) Global Mixed-mode Technology Inc – 2W Stereo Audio Amplifier

Global Mixed-mode Technology Inc.
Pin Description
G1432
PIN
TSSOP QFN
NAME
1,12,13,24 9,10,21,22 GND/HS
2,9,11
6,8,23
NC
3
24
LOUT+
4
1
LIN1
5
2
LIN2
6
3
LBYPASS
7
4
LVDD
8
5
SHUTDOWN
10
7
LOUT-
14
11
MUTE
15
12
ROUT-
16
13
IN1/IN2
17
14
GND
18
15
RVDD
19
16
RBYPASS
20
17
RIN2
21
18
RIN1
22
19
ROUT+
23
20
VOL
Thermal
Pad
Thermal
Pad
I/O
FUNCTION
Ground connection for circuitry, directly connected to thermal pad.
NC Embedded test mode pin, please keep it floating.
O Left channel + output in BTL mode
I Left channel IN1 input, selected when IN1/IN2 pin is held low.
I Left channel IN2 input, selected when IN1/IN2 pin is held high.
Connect to voltage divider for left channel internal mid-supply bias.
I Supply voltage input for left channel and for primary bias circuits.
I Shutdown mode control signal input, places entire IC in shutdown mode
when held high, I_DD < 5µA.
O Left channel - output in BTL mode.
I Mode control signal input, hold low for activation, hold high for mute.
O Right channel - output in BTL mode
I MUX control input, hold high to select in2 inputs (5,20)/(2/17), hold low to
select in1 inputs (4,21)/(1,18).
Ground connection for circuitry.
I Supply voltage input for right channel.
Connect to voltage divider for right channel internal mid-supply bias.
I Right channel in2 input, selected when IN1/IN2 pin is held high.
I Right channel lin1 input, selected when IN1/IN2 pin is held low.
O Right channel + output in BTL mode
I The output power can be clamped by setting a low bound voltage to this pin.
The high bound voltage will be generated internally. The output voltage will
be clamped between high/low bound voltages. Then the output power is lim-
ited. It is weakly pull-low internally, let this pin floating or tied to GND can
deactivate this function.
Recommend connecting the Thermal Pad to the GND for excellent power
dissipation.
Recommended Minimum Footprint
TSSOP-24 (FD)
QFN4X4-24
Ver: 1.1
Jun 21, 2006
TEL: [phone]
http://www.gmt.com.tw
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