BD3401KS2 ROHM Co. Ltd., BD3401KS2 Datasheet - Page 7

• Manufacturer Part Number: BD3401KS2
• Description: Single Power Supply Sound Processor Built-in Pre Amplifier For Tape Recording And Play Back
• Manufacturer: ROHM Co. Ltd.

(BD3402KS2)
・Basic Configuration of Control Data Format
・Control Data Formats
← Data input direction
← Data input direction
MSB
MSB
Example:
・By changing the setting of Select Address, nine different control formats are selectable.
・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.
Example: When changing the volume,
・TONE ATT settings
(1)TONE ATT＝-4dB
← Data input direction
← Data input direction
(a) Sending Data (3) only
(b) Sending all the data
Data(1)
Data(2)
Data(3)
Data(4)
Data(5)
Data(6)
TONE ATT can be set to either one of three modes: 0dB, -4dB and -8dB using D3 in Data (3) or Data (4).
When setting TONE ATT, data should be sent as follows:
Data
Data(1)
Data(2)
←MSB
←MSB
Sending Data(3) after Data(4) follows that Data(3) is given a higher priority.
Data(3)
Data(1)
LSB MSB
LSB
“L” means a “latch.”
MSB
L
L
D7
D7
D7
D7
D7
D7
D7
LSB
LSB MSB
MUX
Data(2)
L
Input Selector
L
*
D6
D6
D6
D6
D6
D6
D6
Data(2)
LSB MSB
Treble
Bass
L
LSB MSB
MIXING
Volume
Data
REC
D5
D5
D5
D5
D5
D5
D5
Data(3)
L
Data(4)
LSB MSB
LINE
7/16
D4
D4
D4
D4
D4
D4
MIXING GAIN
D4
“L” means a “latch.”
Input Gain
L
LSB MSB
Data(4)
L
ATT(1)
ATT(2)
TONE
TONE
ALC
D3
D3
D3
D3
D3
D3
D3
Data(3)
LSB
L
D2
D2
D2
D2
D2
D2
D2
LSB
0
0
1
1
0
0
・・・
L
Select Address
MSB
・・・
D1
D1
D1
D1
D1
D1
D1
0
0
1
1
0
1
Data(9)
MSB
・* Indicates 0 or 1.
Data(9)
LSB
LSB
D0
D0
D0
D0
D0
D0
D0
0
1
0
1
1
0
L
LSB
L