BD3870FS-E2 Rohm Semiconductor, BD3870FS-E2 Datasheet - Page 4

• Manufacturer Part Number: BD3870FS-E2
• Description: IC SOUND PROCESSOR SSOP-A24
• Manufacturer: Rohm Semiconductor
• Series: -r
• Type: Audio Processorr

Specifications of BD3870FS-E2

• Applications: Audio Systems
• Mounting Type: Surface Mount
• Package / Case: 24-SOP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

BD3870FS,BD3871FS,BD3872FS,BD3873FS
© 2010 ROHM Co., Ltd. All rights reserved.
www.rohm.com
3) Control Data Format List
Basic Configuration of Control Data Format
Control Data Format (BD3870FS, BD3871FS, BD3873FS)
Control Data Format (BD3872FS)
 Data input direction
 Data input direction
 Data input direction
・”*” indicates 0 or 1.
・By changing the setting of Select Address, three or four different control formats (BD3871FS, BD3872FS,
・In every power-on sequence, all of the address data must be initialized.
・After power-on, for the second and subsequent times, only the necessary data can be selected for setting.
BD3873FS, plus BD3872FS) are selectable.
Example:
Example: When changing the volume,
(1)
(2)
(3)
(4)
(1)
(2)
(3)
(4)
←Input direction
←Input direction
MSB
MSB
Data(1)
Data(2)
MSB
D9
Input Selector
D9
D9
*
*
“L” indicates a latch.
Input Gain
LSB
“L” indicates a latch.
LSB
D8
L
L
D8
*
D8
*
Bass Gain
Bass Gain
MSB
Volume A
Data(2)
Volume A
D7
D7
D7
*
*
Input Gain
LSB
D6
L
D6
D6
*
*
Data
MSB
Input Selector
4/15
Surround
Data(3)
D5
D5
D5
*
*
LSB
D4
D4
D4
L
Treble Gain
Treble Gain
*
*
*
Volume B
Volume B
MSB
Surround
Data(4)
D3
D3
D3
*
*
*
LSB
SEQ
D2
D2
D2
L
*
*
*
*
*
D1
Technical Note
D1
D1
2010.10 - Rev.A
0
0
1
1
0
0
1
1
Address
Select
LSB
D0
D0
D0
0
1
0
1
0
0
1
1