BD3883FS ROHM Co. Ltd., BD3883FS Datasheet - Page 8

• Manufacturer Part Number: BD3883FS
• Description: Audio Sound Controller For Home Audio
• Manufacturer: ROHM Co. Ltd.

← Data input direction
← Data input direction
(BD3883FS)
・Basic Configuration of Control Data Format
・By changing the setting of Select Address, four different control formats are selectable. (BD3883FS)
・At power-on sequence, initialize all data.
・After power-on, for the second and subsequent times, only the necessary data can be selected for setting.
・RECOUT, Surround and Rear Volume in Data(4) are Soft-switched using time constants. (BD3883FS)
・Control Data Formats
Data(1)
Data(2)
Data(3)
Data(4)
Data
Example:
Example: When changing the volume:
MSB
MSB
← Data input direction
← Data input direction
Data(1)
Data(2)
MSB
D9
D9
D9
D9
D9
LSB
LSB
“L” means a “latch.”
L
Input Gain
L
MSB
D8
D8
D8
D8
D8
Middle Gain
Bass Gain
Data(2)
Front Volume A
LSB MSB
D7
D7
D7
D7
D7
L
Data(3)
D6
D6
D6
D6
D6
Data
Input Selector
LSB
Constant
8/16
“L” means a “latch.”
Select
Time
D5
D5
D5
D5
D5
L
MSB
Data(4)
REC
OUT
Front Volume B
D4
D4
D4
D4
D4
Treble Gain
LSB
L
Surround
D3
D3
D3
D3
D3
Treble fc
Volume
Rear
D2
D2
D2
D2
D2
*
・* indicates 0 or 1.
Select Address
Select Address
D1
D1
D1
D1
1
D1
0
0
1
LSB
D0
D0
D0
D0
D0
0
0
1
1