SECTION 6
DIAGRAMS
6-1. IC PIN FUNCTION DISCRIPTION
•
IC1 µPC17072GB-552-1A7
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31 to 34
35 to 49
50
51
52
53
54
55
56
I/O
O
O
O
O
O
O
O
O
O
I
I
I
I
I/O
I
I
I
—
O
I
I
—
—
—
—
—
—
—
—
—
O
O
I
I
O
I
I
I/O
I/O
Description
Unused
H: mute on
serial clock to EEPROM
AM/FM band control. L-FM, H-AM
EEPROM chip select
pin 54 :- H: LINE OUT L: TUREQ
request IF. *H only during auto scan*
‘H’ radio on
pin 10 :-H: XAVLS L: XHOLD
AVLS/HOLD input
‘H’: CD micon on
HI-DC/BATT input (ADC)
KEY/RMKEY input (ADC)
serial data line to/from EEPROM
DC in status input. L-DC in
TUNER-ON/BAND key.
AM/FM IF signal input
ground
PLL error output
PLL local oscillator input (AM)
PLL local oscillator input (FM)
PLL voltage regulator
positive power supply
crystal resonator connection pins
crystal resonator connection pins
oscillation circuit voltage regulator
LCD drive voltage
capacitor for LCD drive voltage
capacitor for LCD drive voltage
LCD drive voltage
LCD common signal output
LCD segment signal output
chip enable
pin 13 :-H-main set key input L-remote control key input
BEEP output (L/H/3kHz)
Stereo detect
serial input synchronize signal/LINE-OUT detect
serial clock from CD micon/DBB output
serial data from CD micon/DBB output
Pin Name
Unused
TUMUTE
SK
AMCTRL
CS
L/O-SW
IF-REQ
TUON
AVLS/XHOLD SW
XAVLS/XHOLD
CDON
HIDC/BATT
KEY/RMKEY
DO/DI
XDCDT
XTUNER SW-IN
AM/FM-IFC
GND
EO
VCOL
VCOH
VREG0
VDD
XOUT
XIN
VREG1
VLCD0
CAP0
CAP1
VLCD1
COM0 – COM3
SEG0 – SEG14
CE
XRMKEY-INT
BEEP
XST
TUREQ/XL/O
SCK/GROOVE
SDI/XBASS
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