bh3856fs ROHM Co. Ltd., bh3856fs Datasheet - Page 5

• Manufacturer Part Number: bh3856fs
• Description: 2-wire Serial Sound Control Ic
• Manufacturer: ROHM Co. Ltd.

Audio ICs
Symbol
A_GND
D_GND
SASS
TVO1
TVO2
OUT1
OUT2
SDA
SCL
VC1
VC2
V
SC
BC
TC
V
ref
CC
Pin voltage
3.8V
4.5V
4.5V
4.5V
4.5V
−
−
−
−
−
Analog GND pin. Connected to IC board.
Digital GND pin. Separate from Analog GND pin.
Power supply voltage pin.
12pin
19pin
20pin
22pin
21pin
A_GND
V
A_GND
V
V
10pin
24pin
A_GND
V
18pin
A_GND
V
13pin
15pin
17pin
A_GND
CC
CC
CC
CC
CC
Digital
Equivalent Circuit
2kΩ
9pin
24pin
25kΩ
VREF
3.8V regulator output pin.
Output requires capacitor for stopping
oscillation. Output pin has built-in precharge
and discharge circuits, so there is no problem
with start-up or shut-down even with a large
capacitor. This pin is for connection to the
high-band filter.
· I
SDA : serial data line
SCL : serial clock line
· Slave address selection pin
SASS: slave address selection switch
Pin for high band filter connection.
Main volume output pin.
OUT1 is the volume output for Channel 1.
OUT2 is the volume output for Channel 2.
For prevention of shock noise during
step switching.
SC : Surround pin
BC : Bass pin
TC : Treble pin
VC1 : Volume pin (Channel 1)
VC2 : Volume pin (Channel 2)
2
C bass input pin
BH3856S / BH3856FS
∗
The pin numbers are for the BH3856S.
Description