BD3401KS2 ROHM Co. Ltd., BD3401KS2 Datasheet - Page 8

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

●Pin description
(BD3401KS2)
Pin No.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
(2)TONE ATT＝-8dB
(a) Sending Data(4) only
(b) Sending all the data
←MSB
←MSB
Sending Data(4) after Data(3) follows that Data(4) is given a higher priority.
VOL OUT2
RECOUT2
RECOUT1
Pin Name
TAPE B1
TAPE B2
PBOUT2
PBOUT1
TAPE A1
TAPE A2
RECNF2
RECNF1
SW OUT
1/2VCC
FILTER
PBNF2
PBNF1
BBNF2
BBIN2
Data(4)
Data(1)
GND
VDD
VCC
ALC
LF4
LF3
LF2
LF1
SC
D1
D2
E1
E2
SI
LSB
LSB MSB
2ch PB output pin
1ch PB output pin
2ch REC output pin
1ch REC output pin
Serial data input pin
1/2VCC output pin
Subwoofer output pin
2ch output pin
1ch input pin D
2ch input pin D
1ch input pin E
2ch input pin E
2ch PB filter setting pin
1ch PB filter setting pin
1ch TAPE input pin A
2ch TAPE input pin A
1ch TAPE input pin B
2ch TAPE input pin B
2ch REC filter setting pin
1ch REC filter setting pin
ALC time constant setting pin
Serial clock input pin
Digital power supply pin
Ground pin
Analog power supply pin
1/2 VCC pin
Primary LPF setting pin
Secondary LPF setting pin
Secondary LPF setting pin
Secondary LPF setting pin
2ch bass boost filter setting
pin
2ch bass boost filter setting
pin
L
L
Data(2)
Description
LSB MSB
L
Data(3)
8/16
LSB MSB
Pin No.
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
L
Data(4)
TONE OUT1
TONE OUT2
LINEOUT2
LINEOUT1
VOLOUT1
AMS OUT
Pin Name
SAOUT2
SAOUT1
MOUT1
MOUT2
BOUT2
BOUT1
BBNF1
MNF１
BBIN1
MNF2
SUR1
SUR2
BNF2
BNF1
TNF2
TNF1
VIN1
VIN2
CAP
MIC
LSB
A1
A2
B1
B2
C1
C2
L
・・・
1ch output pin
1ch bass boost filter setting
pin
1ch bass boost filter setting
pin
1ch volume input pin
1ch tone output pin
2ch volume input pin
2ch tone output pin
AMS output pin
2ch bass filter setting pin
2ch bass filter setting pin
1ch bass filter setting pin
1ch bass filter setting pin
1ch middle filter setting pin
1ch middle filter setting pin
2ch middle filter setting pin
2ch middle filter setting pin
2ch treble filter setting pin
1ch treble filter setting pin
Surround setting pin
Surround setting pin
2chLINE output pin
1chLINE output pin
Spectrum Analyzer output
pin 2
Spectrum Analyzer output
pin 1
Time constant setting pin for
absorbing switching shock
sound
MIC input pin A
1ch input pin A
2ch input pin A
1ch input pin B
2ch input pin B
1ch input pin C
2ch input pin C
MSB
Description
Data(9)
LSB
L