G1420
Global Mixed-mode Technology Inc.
Block Diagram
20k
21
20
RLINEIN
RHPIN
_
+
22
15
ROUT+
ROUT-
RIGHT
MUX
RBYPASS
19
RVDD
18
MUTEIN
HP/LINE
SE/BTL
TJ
16
14
2
11
BIAS CIRCUITS
MODES CONTROL
CIRCUITS
MUTEOUT
SHUTDOWN
9
8
LVDD
7
6
LBYPASS
+
10
3
LOUT-
LOUT+
LHPIN
5
4
_
LEFT
MUX
LLINEIN
20k
Parameter Measurement Information
11
8
MUTEIN
HP/LINE
SE/BTL
SHUTDOWN
16
14
LVDD
7
RL 4/8/32ohm
6
LBYPASS
CB
4.7µF
LOUT-
LOUT+
10
3
+
5
4
LHPIN
CI
LEFT
MUX
_
LLINEIN
AC source
RI
RF
BTL Mode Test Circuit
TEL: 886-3-5788833
http://www.gmt.com.tw
Ver: 1.5
Aug 04, 2005
15