G1422 Datasheet, PDF (12/15 Pages) Global Mixed-mode Technology Inc – 2W Stereo Audio Amplifier

Global Mixed-mode Technology Inc.
Application Circuits
PHONEJACK
G1422
RCA
R1
1K
COA
100µF
SPEAKER
CA1 RA1
1µF 20K
RFA1
20K
1
SHUTDOWN
2
GND
20
HP-IN
19
GND
3
+OUTA
18
+OUTB
4
VDD
17
VDD
5
-OUTA
16
-OUTB
6
G1422
15
-INA
-INB
7
GND
BYPASS ¹⁴
8
+INA
+INB ¹³
9
GND
GND ¹²
10 _GND
GND ¹¹
R2
1K
COB
100µF
R4
100K
0.1µF
R3
100K
SPEAKER
RFB1
20K
CS
1µF
RB1 CB1
20K 1µF
RCA
CB
0.33µF
Logical Truth Table
HP-IN
X
INPUTS
Low
Low
High
High
Shutdown
High
Low
Low
Low
Low
A/B Out-
----
BTL
Output
BTL
Output
SE
Output
SE
Output
AMPLIFIER STATES
A/B Out+
----
BTL
Output
BTL
Output
----
----
Mode
Mute
BTL
BTL
SE
SE
Ver: 1.2
Jun 29, 2005
TEL: [phone]
http://www.gmt.com.tw
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