G1422 Datasheet, PDF (9/15 Pages) Global Mixed-mode Technology Inc – 2W Stereo Audio Amplifier

Global Mixed-mode Technology Inc.
Pin Description
G1422
PIN
NAME
1
SHUTDOWN
2,7,9,10,11,12,19
3
4,17
5
GND/HS
+OUTA
VDD
-OUTA
I/O
FUNCTION
I Shutdown mode control signal input, places entire IC in shutdown mode when held
high, I_DD is below 2µA.
Ground connection for circuitry, directly connected to thermal pad.
O A channel + output in BTL mode, high impedance state in SE mode
Supply voltage for circuitry.
O A channel - output in BTL mode, - output in SE mode.
6
8
13
14
15
16
18
20
Thermal Pad
-INA
+INA
+INB
BYPASS
-INB
-OUTB
+OUTB
HP-IN
I A channel input signal I, selected when MUXCTRL is held low.
I A channel positive input of OPAMP, biasing DC operation of OPAMP
I B channel positive input of OPAMP, biasing DC operation of OPAMP
Connect to voltage divider for internal mid-supply bias.
I B channel input signal I, selected when MUXCTRL is held low.
O B channel - output in BTL mode, - output in SE mode.
O B channel + output in BTL mode, high impedance state in SE mode
I Mode control signal input, hold low for BTL mode, hold high for SE mode.
Recommend connecting the Thermal Pad to the GND for excellent power dissipation.
Ver: 1.2
Jun 29, 2005
TEL: [phone]
http://www.gmt.com.tw
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