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BH3856S 반도체 회로 부품 판매점

2-wire serial sound control IC



ROHM Semiconductor 로고
ROHM Semiconductor
BH3856S 데이터시트, 핀배열, 회로
Audio ICs
BH3856S / BH3856FS
2-wire serial sound control IC
BH3856S / BH3856FS
The BH3856S and BH3856FS are signal processing ICs designed for volume and tone control in televisions, mini
component stereo systems, and other audio products. Their two-line serial control (I2C BUS) enables them to control
volume and tone on the basis of signals from a microcomputer, etc.
!Applications
Televisions, [Video equipped television], personal computer televisions, mini component stereo systems, car stereos.
!Features
1) I2C BUS facilitates direct serial control from a microcomputer of volume (main volume), balance (left / right), and tone
(bass, treble). DC control is also possible.
2) Volume is produced by a low-distortion, low-noise VCA. Designed to minimize step noise.
3) Stable standard voltage supply and built-in I/O buffer mean that few attachments are needed. SSOP-A32 package
designed to save space.
4) Matrix surround yields powerful sound.
!Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Power supply voltage
Power dissipation
Operating temperature
BH3856S
BH3856FS
Vcc
Pd
Topr
Storage temperature
Tstg
1 Reduced by 12mW for each increase in Ta of 1°C over 25°C.
2 Reduced by 6.8mW for each increase in Ta of 1°C over 25°C.
Limits
10.0
12001
850 2
40~+85
55~+150
Unit
V
mW
°C
°C
!Recommended operating conditions (Ta = 25°C)
Parameter
Power supply voltage
Symbol Min. Typ.
VCC 6.0 9
Max.
9.5
Unit
V
Note : I2C BUS is a registered trademark of Philips.


BH3856S 데이터시트, 핀배열, 회로
Audio ICs
!Block diagram
BH3856S / BH3856FS
BH3856S
A_GND 1
IN1 2
30k 30k
−−
VCC
30 FILTER
29 IN2
BVN1 3
BIN1 4
BVO1 5
5.1k
TVN1 6
TIN1 7
TVO1 8
2.1k
47k
+
47k
+
Volume
Volume
Matrix surround
28 BVN2
27 BIN2
5.1k
26 BVO2
25 TVN2
24 TIN2
2.1k
23 TVO2
OUT1 9
VCC 10
SC 11
N.C. 12
VCC
200k
Volume
SDA 13
22 OUT2
Volume
30k 21 VC1
30k
20 VC2
30k
19 TC
30k
18 BC
SCL 14
D_GND 15
Reference Voltage
17 Vref
16
SLAVE ADDRESS
SELECT SW
BH3856FS
A_GND 1
IN1 2
30k 30k
−−
VCC
32 FILTER
31 IN2
BVN1 3
BIN1 4
N.C. 5
5.1k
BVO1 6
TVN1 7
47k
+
47k
+
Volume
Volume
Matrix surround
30 BVN2
29 N.C.
28 BIN2
5.1k
27 BVO2
26 TVN2
TIN1 8
TVO1 9
2.1k
25 TIN2
2.1k
24 TVO2
OUT1 10
VCC 11
SC 12
SDA 13
VCC
200k
Volume
N.C. 14
23 OUT2
Volume
30k 22 VC1
30k
21 VC2
30k
20 TC
30k
19 BC
SCL 15
D_GND 16
Reference Voltage
18 Vref
17
SLAVE ADDRESS
SELECT SW




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