JVC UX-T77 - BH3852 S (IC38): E.volume

1-28
UX-T77
1
2
3
4~6
7.8
9
10
11
12
13
14
15
16
17.18
19~21
22
23
24
GND
IN1
NF1
BASS1
TRE1
OUT1
VCC
LIVE
VREF
BASS
TRE
VOL
OUT2
TRE2
BASS2
NF2
IN2
VSET
Connect to GND.
Terminal for 1ch volume input.
Terminal for gain adjustment of
input step AMP.
Terminal for connection of 1ch
low-frequency filter.
Terminal for connection of 1ch
high-frequency filter.
Terminal for 1ch volume output.
Terminal for power supply.
Terminal for surround control.
Terminal for reference voltage
output.
Terminal for bass control.
Terminal for treble control.
Terminal for volume control.
Terminal for 2ch volume output.
Terminal for connection of 2ch
high-frequency filter.
Terminal for connection of 2ch
low-frequency filter.
Terminal for gain adjustment of
input step AMP.
Terminal for 2ch volume input.
Terminal for filter.
-
I
I
-
-
O
-
-
O
I
I
I
O
-
-
I
I
-
Pin No. Pin No.
Symbol
I/O
Function
Symbol
I/O
Function
2. Pin function
1. Block diagrams
FILTER IN2 NF2 BVN2 BIN2 BVO2 TIN2 TVO2 OOUT2 VC TC BC
GND
IN1
NF1
BVN1
BIN1
BVO1
TIN1
TVO1
OUT1
Vcc
SC
VREF
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
(BASS) (TREBLE)
TONE CONTROL
TONE CONTROL
(BASS) (TREBLE)
VOLUMEVOLUME
Ref. Voltage
VOLUME VOLUME
CONTROL
MATRIX SURROUND SOUND
Vcc
Vcc
2K
20K
20K
2K
10M
20K
20K
47K
47K
10M 10M 10M
- +
- +
+
-
-
+
-
+
BH3852S (IC38) : E.Volume