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5-2. IC PIN FUNCTION
• IC501 SYSTEM CONTROL (µPD780205GF-016-3BA)
Pin No.
Pin Name
1
V
DD
2
PWMSW
DISC SENS
3
TABLE R
4
TABLE L
5
JOG1
6
JOG0
7
BD PWR
8
BD RST
9
RESET
10
X2
11
X1
12
GND
13
14
15
ADJ
16
V
DD
17
CLOCK
18
DATA
19
SENS
20
XLT
21
PRGL
22
SOCLK
23
24
SUBQ
AV
25
SS
26
FCSSW
A MUTE
27
LOD OUT
28
LOD IN
29
OUT SW
30
KEY3 to KEY1
31 to 33
AV
34
DD
AV
35
REF
SCOR
36
TABLE SENS
37
BUS OUT
38
BUS IN
39
40
V
SS
I/O
–
Power supply. (+5V)
I
Pulse width modulation select switch for turn table. (Not used)
I
Slit sensor input of disc table. "L": None , "H": Load
O
Table motor control signal output.
O
I
Jog dial encoder input.
I
O
Power ON/OFF control signal output to BD block. "L": OFF , "H": ON
O
Reset signal output to BD block. "L": Reset
I
System reset input. "L": Reset
O
Main system clolck. (5 MHz)
I
–
Ground
–
Not used. (Open)
I
Test pin. "L": Test mode
–
Power supply. (+5V)
O
Serial clock output to digital signal processor and D/A converter.
O
Serial data output to digital signal processor and D/A converter.
I
Each mode input from digital signal processor and D/A converter.
O
Serial data latch pulse output to digital signal processor and D/A converter.
O
Serial data latch pulse output to digital filter.
O
Sub-code Q data read clock output to digital signal processor.
O
Not used. (Open)
I
Sub-code Q data serial input from Digital signal processor.
–
Ground (A/D converter)
O
Focus gain switching output. "L": Normal , "H": Down
O
Muting ON/OF control output. "H": Mute (Not used)
O
Loading motor control signal output.
O
I
Loading out detection signal input.
I
Key input (A/D)
–
Power supply (+5V) (A/D converter)
Reference voltage input (+5V) (A/D converter)
–
I
Sub-code sync detection input.
Table address detection sensor input.
I
Audio bus signal ouput.
O
Audio bus signal input.
I
Ground
–
— 12 —
Function
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