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2.Pin function
Pin No.
74,75,76,77,78,
INLA,B,C,D,E,F,G,H,I,J
79,80,1,2,3
4,5,6,7,59,60,61
REC L1,L2,L3,L4
/REC R1,R2,R3,R4
8,22,52,53
9,51
10,50
11,49
12,48
13,47
14,46
SBRIN1/SBRIN2
15,45
16,44
17,18,42,43
BASS L1,L2/BASS R1,R2
19,41
20,40
TONEOUT L/TONEOUT R
21
23
24
12,26,27
LATCH,DATA,CLOCK
28
29
30
31
32
33
34
35
36
37
38
39
54,55
LOUD L/BALANCE L/+,L/-
56
57,58
LOUD R/BALANCE R/+,R/-
62,63,64,65,66,
INRA,B,C,D,E,F,G,H,I,J
67,68,69,70
73
MM74HCT32MTC (IC521) : OR gate
1.Pin layout
Vcc
Symbol
VOLGND1,2,3,4
FLIN1/FLIN2
SLIN1/SLIN2
SBLIN1/SBLIN2
CIN1/CIN2
SWIN1/SWIN2
SRIN1/SRIN2
FRIN1/FRIN2
TRE L/TRE R
FLVIN
TIM1
DVDD
DGND
AVCC
OUTGND
FLOUT
SLOUT
SBLOUT
COUT
SWOUT
SBROUT
SROUT
FROUT
FRVIN
INGND
AVEE
B4
A4
Y4
B3
14
13
12
11
10
1
2
3
4
5
A1
B1
Y1
A2
B2
Function
Lch input
REC output
Analog GND for vol.
FLch input
SLch input
SBLch input
Cch input
SWch input
SBRch input
SRch input
FRch input
Tone path frequency characteristic setup
Tone treble frequency characteristic setup
Tone output
FL vol. input
Timer setup
Internal logic circuit Power supply terminal
CLOCK,DATA,LATCH input for serial data transmission
Internal logic circuit GND terminal
Internal analog circuit Power supply terminal(+)
Analog GND
FLch output
SLch output
SBLch output
Cch output
SWch output
SBRch output
SRch output
FRch output
FR vol. input
Lch loudness frequency setup/Lch balance output for ADC
Analog GND
Rch loudness frequency setup/Rch balance output for ADC
Rch input
Internal analog circuit Power supply terminal(-)
A3
Y3
9
8
6
7
Y2
GND
RX-DV5RSL
1-27
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