43
DEH-P3000R
7. GENERAL INFORMATION
7.1 PARTS
7.1.1 IC
-
Pin Functions (PD4990A)
Pin No.
Pin Name
I/O
Function and Operation
1
DRSYS
O
Door system select output
2
TELMUTE
I
Telephone mute input
3
SYSPW
O
System power supply control output
4
DRELAY
O
External relay output
5
TESTIN
I
Test program mode input
6
drst
O
RDS reset output
7
ERROR
O
RDS disapprove of error correction output
8
sk
I
RDS SK signal input
9
RECIVE
O
During RDS data reception output
10
TUNPW
O
Tuner power control output
11
reset
I
Reset input
12
XT2
Not used (open)
13
XT1
Not used (GND)
14
VSS
GND
15
X2
Crystal oscillator connection pin
16
X1
Crystal oscillator connection pin
17
REGOFF
Connect to VSS
18
REGC
Capacitor for regulator connect pin
19
VDD
Power supply
20
GRNILM
O
Green illumination select output
21
NC
Not used
22
adpw
O
A/D converter power supply output
23
AMBILM
O
Amber illumination select output
24
IPPW
O
Power supply control output for IP BUS interface IC
25
ASENB
O
Slave power supply control output
26
ROMDATA
O
ROM correction data output
27
ROMCLK
O
ROM correction clock output
28
MUTE
O
System mute output
29
fm
/AM
O
RDS decoder power select output
30
LOCL
O
LOCL output
31
LOCH
O
LOCH output
32
TUNPCE2
O
PLL IC chip enable output
O
Clock output for electronic volume
O
Strobe pulse output for electronic volume
O
Data output for electronic volume
O
Tuner mute output
O
ROM correction chip select output
I
SD input
I
FM stereo input
GND
Power supply
Not used
I
RDS LK signal input
O
Tuner voltage FIX output
46
RDT
I
RDS demodulation data input
47–49
NC
Not used
50
dled
O
Alarm LED output
51
swvdd
O
Keyboard unit power supply control output
52
dsens
I
Grille detach sense input
53
CONT
O
CD server driver power control output
54
CD5VON
O
CD +5V power control output
55
NC
Not used
56
VDCONT
O
CD VD power control output
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