
LA2657M
No.8078-4/8
Pin Functions
BBE+LC75421 Combined IC Pin Assignment
No
Pin
[Pin Numbers for Each Chip]
No
Pin
[Pin Numbers for Each Chip]
1
L4 for the LC75421
[15]
33
NC
2
L3 for the LC75421
[16]
34
R-MIX for the BBE chip
[9]
3
L2 for the LC75421
[17]
35
R-OUT for the BBE chip
[10]
4
L1 for the LC75421
[18]
36
L-OUT for the BBE chip
[11]
5
Vref for the LC75421
[19]
37
L-MIX for the BBE chip
[12]
6
R1 for the LC75421
[20]
38
L-VOL1 for the BBE chip
[13]
7
R2 for the LC75421
[21]
39
NC
8
R3 for the LC75421
[22]
40
LC2 for the BBE chip
[14]
9
R4 for the LC75421
[23]
41
L-VOL2 for the BBE chip
[15]
10
NC
42
LC3 for the BBE chip
[16]
11
RSELO for the LC75421
[25]
43
LC1 for the BBE chip
[17]
12
RIN for the LC75421
[26]
44
L-IN for the BBE chip
[18]
13
RTRE for the LC75421
[27]
45
RFOUT for the LC75421
[33]
14
RBASS1 for the LC75421
[28]
46
RROUT for the LC75421
[34]
15
NC
47
VDD for the LC75421
[35]
16
RBASS2 for the LC75421
[29]
48
NC
17
NC
49
CL for the LC75421
[36]
18
RSB for the LC75421
[30]
50
DI for the LC75421
[1]
19
ROUT for the LC75421
[31]
51
CE for the LC75421
[2]
20
RFIN for the LC75421
[32]
52
VSS for the LC75421
[3]
21
VCC for the BBE chip
[19]
53
LROUT for the LC75421
[4]
22
Vref for the BBE chip
[20]
54
LFOUT for the LC75421
[5]
23
CONT for the BBE chip
[1]
55
NC
24
GND for the BBE chip
[2]
56
LFIN for the LC75421
[6]
25
R-IN for the BBE chip
[3]
57
LOUT for the LC75421
[7]
26
NC
58
LSB for the LC75421
[8]
27
RC1 for the BBE chip
[4]
59
LBASS2 for the LC75421
[9]
28
RC3 for the BBE chip
[5]
60
LBASS1 for the LC75421
[10]
29
R-VOL2 for the BBE chip
[6]
61
LTRE for the LC75421
[11]
30
RC2 for the BBE chip
[7]
62
LIN for the LC75421
[12]
31
R-VOL1 for the BBE chip
[8]
63
LSELO for the LC75421
[13]
32
NC
64
NC
* : No connections whatsoever may be made to NC pins.
* : The input function uses items 1 to 4.
* : The BBE chip must be operated within ranges such that the pin 36 and pin 37 output levels never exceed 2.5V rms in
bypass mode.