Z828MP
4
●
System Microcomputer UPD703033GC107 (IC1 : Main unit)
PinNo.
Pin name
I/O
Description
Processing Operation
1
AMP_MUTE
O
Muting control output to Power IC
Muting ON: Low. Muting OFF: High.
2
AMP_STBY
O
Standby control output to Power IC
Standby canceled: High. Standby mode: Low.
3
NC
O
Output open
4
NC
O
Output open
5
P_ANT
O
Power antenna control output
Radio mode: High. Other mode: Low.
6
EVdd
Connected to B-U 5 V
7
EVss
Connected to GND
8
P_CONT
O
Power control output
ON: High. OFF: Low.
9
BEEP
O
Beep output
Permanently "L".
10
EXT_AMP
O
External amp control output
11
DIMMER
I
Dimmer detection input
Dimmer ON: Low. Dimmer OFF: High.
12
CH_CON
O
CD-CH control output
ON: High. OFF: Low.
13
CH_REQH
O
CD-CH send request output
Request: Low.
14
AFC
O
Time constant switching output in NOISE detection
Time constant big: HI Time constant Small: LO
15
RDS_QUAL
I
QUAL input from RDS
16
RDS_DATA
I
DATA input from RDS
17
NC
O
Output open.
18
IC/Vpp
O
Test
19
IN_SEL
O
CD/CD-CH switching control output
CD: Low. CD-CH: High. Other source: L.
20
SA_MUTE
O
Signal muting output to spectrum analyzer
MUTE ON:HI
21
I2C_SDA
I/O
Data input/output from/to CD mechanism, E-VOL (TDA7407) and HPF
22
I2C_SCK
I/O
Clock output to CD mechanism, E-VOL (TDA7407) and HPF
23
MUTE
O
Muting control output (N-CH open drain)
MUTE ON:HI, MUTE OFF:LO
24
SW5V
O
5 V SW control output (N-CH open drain)
SW5V ON:LO, SW5V OFF:HI
25
F/E_DATA
I/O
Data input/output from/to F/E and PROM (N-CH open drain)
26
F/E_CLK
I/O
Clock output to F/E and PROM (N-CH open drain)
27
PRE_OUT_MUTE
O
PRE-OUT muting control output
Muting ON: Low. Muting OFF: High.
Momentary power down: Low.
28
IFC
I
IF_COUNT input from F/E
Station detected: Low.
Station not detected: High.
29
AM+B
O
AM power supply control output
AM ON:HI, AM OFF:LO
30
FM+B
O
FM power supply control output
FM ON:HI, FM OFF:LO
31
RESET
I
Reset input
LO:RESET ON
32
XT1
Connected to Sub X'tal
33
XT2
Connected to Sub X'tal
34
REGC
1 uF connected to GND.
35
X2
Connected to Main X'tal
36
X1
Connected to Main X'tal
37
Vss
Connected to GND
38
Vdd
Connected to B-U 5 V
39
CLKOUT
Open
40
NC
O
Output open.
41
NC
O
Output open.
42
P_ON
O
Internal power supply control
ON:HI, OFF:LO
43
VFD_ON
O
VFD power supply control output
VFD ON:HI, VFD OFF:LO
44
NC
O
Output open.
PNL 5 V ON: High. PNL 5 V OFF: Low.
45
PNL5V
O
5 V panel control output
Panel detached:Low. Momentary power
down: Low.
MICROCOMPUTER'S TERMINAL DESCRIPTION
Summary of Contents for Z828MP
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