– 35 –
Pin No.
Pin name
I/O
Description
1 – 12
S12 – 23
O
LCD segment signal output.
13 – 16
–––––
–
Not used (OPEN).
17
XTAL-CTL
O
Level shift control output for system clock.
18
BEEP-CTL
O
Beep signal control ouptut.
19
IF-POWER
O
IF B+ ON/OFF control output.
20
AF-POWER
O
Power amp ON/OFF control output.
21
COM0
O
LCD common signal output.
22
COM1
O
LCD common signal output.
23
COM2
O
LCD common signal output.
24
COM3
O
LCD common signal output.
25
BIAS
O
Bias output for LCD.
26
VLC0
–
LCD drive power supply.
27
VLC1
–
LCD drive power supply.
28
VLC2
–
LCD drive power supply.
29
SD
I
SD signal input terminal.
30
TUNE
I
TUNE signal input terminal.
31
–––––
–
Connect to VDD.
32
HOLD
I
Hold switch input.
33
GND
–
Ground terminal.
34
MUTE
O
Mute signal output.
35
SET
–
Not used (OPEN).
36
REQ-SUB
O
Request signal output for sub system control.
37
REQ-DTS
O
DTS request signal output for PLL.
38
VDET-1
I
Power voltage detect input.
39
SCK
I
Sub clock signal input.
40
SO
O
Data signal output.
41
SI
I
Data signal input.
42
ACK
I
Clock signal input from PLL.
43
VDET2
I
Power voltage detect input.
44
UNLOCK
I
PLL unlock detect input.
45
CARD
–
Connect to ground.
46
–––––
–
Not used (OPEN).
O
Chip select output for ROM.
O
Beep signal output.
O
Chip select signal output.
I
Key input.
I
Key input.
I
Key input.
I
Key input.
–
Power supply terminal.
I
Sub clock input (32.768kHz).
56
XT2
O
Sub clock output (32.768kHz).
57
IC
–
Connect to VDD.
58
X1
I
Main system clock input (4MHz).
59
X2
O
Main system clock output (4MHz).
60 – 67
KR0 – KR7
I
Key input terminal.
68
RESET
I
System reset input. “L” : Reset
69 – 80
S0 – S11
O
LCD segment signal output.
IC501
µ
PD753017AGK-717-BE9 (MAIN SYSTEM CONTROL, LCD DRIVE)
www. xiaoyu163. com
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