BD3403FV ROHM [Rohm], BD3403FV Datasheet - Page 7

• Manufacturer Part Number: BD3403FV
• Description: Sound Processors with Built-in 3-band Equalizers
• Manufacturer: ROHM [Rohm]

BD3403FV,BD3861FS,BD3883FS
© 2010 ROHM Co., Ltd. All rights reserved.
www.rohm.com
(BD3883FS)
・Basic Configuration of Control Data Format
 Data input direction
・Control Data Formats
 Data input direction
・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)
○* indicates 0 or 1.
Example:
Example: When changing the volume:
Data(1)
Data(2)
Data(3)
Data(4)
Data
 Data input direction
 Data input direction
MSB
MSB
Data(1)
“L” means a “latch.”
Data(2)
LSB
LSB
MSB
D9
D9
D9
D9
D9
“L” means a “latch.”
L
L
MSB
Input Gain
Data(2)
D8
D8
D8
D8
D8
Middle Gain
Bass Gain
Front Volume A
LSB MSB
L
D7
D7
D7
D7
D7
Data(3)
D6
D6
D6
D6
D6
LSB
Data
Input Selector
L
7/15
Constan
t Select
Time
MSB
D5
D5
D5
D5
D5
Data(4)
Front Volume B
REC
OUT
D4
D4
D4
D4
D4
LSB
Treble Gain
L
Surroun
D3
D3
D3
D3
D3
d
Treble fc
Volume
Rear
D2
D2
D2
D2
D2
*
Technical Note
2010.10 - Rev.A
Select Address
Select Address
D1
D1
D1
D1
D1
0
0
1
1
LSB
D0
D0
D0
D0
D0
0
1
0
1