BH3856S Rohm Semiconductor, BH3856S Datasheet - Page 9
![IC SRL SOUND CONTROL 2WR SDIP30](/photos/7/4/70401/sdip30_sml.jpg)
BH3856S
Manufacturer Part Number
BH3856S
Description
IC SRL SOUND CONTROL 2WR SDIP30
Manufacturer
Rohm Semiconductor
Type
Audio Processorr
Datasheet
1.BH3856S.pdf
(17 pages)
Specifications of BH3856S
Applications
Automotive Systems
Mounting Type
Through Hole
Package / Case
30-SDIP (0.400", 10.16mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Audio ICs
(2) I
(3) BH3856S / BH3856FS slave address
(4) Interface protocol
MSB
1) Basic protocol
2) Auto increment (Select address increases (+1) by the value of the data.)
3) Structure with which transmission is not possible (In this case, only select address 1 is set.)
1bit
S
S
S
S
A6
2
1
C BUS data format
MSB
MSB
MSB
MSB
(Example 1) The address data specified by select address is taken as data 1.
(Example 2) The address data specified by select address +1 is taken as data 2.
(Example 3) The address data specified by select address +N−1 is taken as data N.
Note : Following transmission of data, data transmitted as select address
Slave address
Slave address
Slave address
Slave address
• S
• Slave address = IC recognition. Upper 7 bits are random. Bottom bit is “L” for the sake of overwrite.
• A
• Select address = selection between volume, bass, treble and matrix surround.
• Data
• P
A5
• Slave address selection
0
2 will not be recognized as select address 2, but as data.
8bit
1) A = 1 (10000010) [SASS pin HIGH]
2) A = 0 (10000000) [SASS pin LOW]
A4
0
LSB
LSB
LSB
LSB
A3
0
A
1bit
A
A
A
= start condition (start bit recognition)
= acknowledge bit (recognition of acknowledgment)
= volume and tone data
= stop condition (stop bit recognition)
MSB
MSB
MSB
MSB
A2
Select address 1
0
Select address
Select address
Select address
A1
8bit
0
LSB
A0
A
LSB
LSB
LSB
A
1bit
R/W
A
A
A
MSB
0
LSB
Data
MSB LSB
MSB LSB
MSB
Data
Data
8bit
LSB
Data 1, data 2,...data N
A
1bit
A
A
MSB
Select address 2
1bit
P
P
BH3856S / BH3856FS
LSB
A
MSB
Data
LSB
LSB
A
A
P
P