JVC NX-MD1R - Page 53

NX-MD1R/NX-MD1
1-53
LA4628 (IC301) : 2ch BTL AF power amplifier
1. Terminal layout
2. Block diagram
5
2
1
14
3
Pop noise
prevention circuit
Stand by
switch
Bias
circuit
Ripple
fillter
V
CC
POWER
GND1
IN2
13
11
12
Pre driver
Power
Pre driver
IN
+
--
6
POWER
GND2
9
8
10
IN
+
--
4
7
Power
Load short
protector
VCC short protector
output pin
GND short protector
output pin
GND short protector
output pin
Over voltage
/Surge protector
Thermal
shut down
Pre driver Power
Pre driver
Power
Load short
protector
VCC short protector
output pin
IN1
INR
SG
STB
INL
PP POP
+OUTL
GND
-OUTL
+OUTR
GND
-OUTR
VCC
RF
114