Clarion DRB4475R User Manual

EXPLANATION OF IC
WuPD178016GC-511-3B9 052-1308-00 Master Micro Computer
Outward Form
80 pins. plastic QFP
Terminal Description
No Svmbol VO Function
When the voltage on the terminal turns below 1/2 Vdd.
| | CD TEMP T | it stops the mechanism as it judges the CD pickup is
overheated
Input terminal for detecting key pushed out of DCP/
EJECT/FUNCTION
KEY A/D 1
S-METER I
RDS NOISE
6 | RDS DISCHG
Connects FM S meter signal
Noise level detection terminal for FM RDS and SEEK
Not in use
RDS output terminal for discharging the voltage
detected by RDS NOISE
°
{LCD St
LCD SO
LCD SCK
LCD CE
Serial data communication line with LCD driver
7
8
9
10
Request signal input terminal reading status from
slave microcomputer. When this terminal tums Low
it detects the status reading requested
C-BUS SRQ
~
C-BUS data communication line
14 | C-BUS SCK
vA
>
= [o) Zz
;
:
Bee
Output terminal for AM ON signal
Output terminal for FM ON signal
Outputs signal for SV power ON around micro
computer
Outputs Hi by power ON. supplying +B power
Output terminal for system mute signal
Output terminal for switching an FM SOFT MUTE
constant
feo
=| Power supply terminal
Outputs Hi when the first round starts in LOCAL
SEEK and auto store. After receiving signal it returns
to Hi output.
Terminal to output signal to cance] remote-protection
circuit latch. Outputs Hi pulse for 50 m Sec when
power switch is tumed ON.
RDS output terminal for noise reduction during
follow-up motion
jo Output terminal for switching time constant of FM
— L.P.F.
5V REM
~
SYS MUTE
20 | SOFT MUTE
21
22
GND PORT
VDD PORT
+
wo
a] m K4
23, | AM LOCAL
24 | REM OUT SAV
25 | RDS MUTE
26
i
ao] n
n
=
27 REQ Output “H™ during auto tuning in AM/FM mode.
:
28 M IFC
Z)zI2
a
ty wo
0
DD PLL — | PLL power supply terminal
COH
COL
Detection terminal for AM SD. Judges SD ON by Hi
ii
7)
Zz
iw]
1
AM SD I
wlwlwwiwulwwilw
mm
oo _ Oo
FM SD 1 | Detection terminal for FM SD. Judges SD ON by Hi
FM ST I
PLL DI
PLL SCK oO
PLL DO oO
PLL CE
Detecting terminal for FM stereo indicator
PLE. data communication terminal with PLL IC
Outputs “L” to turn on a power of CD mechanism.
Spare terminal for RDS decoder power ON
No. Symbol vO Function
46 | BLINKING LED | © | LED flashing output signal
Outputs Low when the first round starts in LOCAL
4
47 | FM LOCAL QO | SEEK and auto store, After receiving signal u returns
to Hi output
4
IN eA DIRT Outputs “L” to tur on a power supply of CD IC and
CD SV REM O DAC IC
4
EVOL CLK O Serial data communication line to electronic volume
EVOL DATA Ic
O | Outputs “L™ to turn on a Laser diode.
Terminal to detect the completion of CD DISC
chucking. When the chucking SW 1s ON after DISC
is loaded. Low ts input
In DISC loading/EJECT mode. the condition of these
two terminals are as follows:
CHAK-SW I
tn tn ft te
a
we)
| ° | rc
54
Lo
MCCW Lo
Cc . Terminal to detect the condition of DISC loading.
B chucking or others. When DISC 1s not inserted. Low
A is input for A/B/C terminal
SQSO I | Data input terminal to read SUB-Q data from CD IC
SOCK oO Clock signal output terminal to read SUB-Q signal
from CD IC
SENS Controls CD by inputting a signal such as FZC, AS.
TZC, SSTOP. BUSY. etc. from CD IC.
Reset output terminal for CD/servo [C
Clock output terminal for CD/servo IC control
a nN a (oe Pad
o1o/]/°
‘ v=} COL y~nwn
oO} x x
SSI & | & >| 4 c 9g 8 2 o &
noi
- : 5 = = io) gS &
2 °
a oO
g
2 es
SCLK O | Clock output to read coefficient from CD IC
| 66 | RDS DATA zz Inputs data from RDS decoder
RDS CLK 1 | Clock signal input from RDS decoder
When this terminal turns Low. micro computer detects
B/U DET the B/U OFF and turns micro computer to STOP
mode, stopping oscillation
| 69 | ACC DET Pt | ON/OFF detection terminal for ACC power supply
pola tao SSCs”
Key insertion input terminal Low when EJECT key
or FUNC(POWER) key pushed When this terminal
turns Low, key A/D terminal detects the key pushed
a Microcomputer takes in SUB-Q data im mediately
71 | KEY INT
72
|
SCOR
after
inputting
Hi
pulse.
73 | PHONE INT Input terminal for phone interrupt
Regulator terminal for CPU power supply. Connected
to pass con against noise
- | GND
74 | REG CPU =
—
- | Connecting terminal for oscillating crystal for main
[| system clock
Power supply regulator terminal tor oscillator.
Connected to pass con against noise
— | Power supply terminal
Micro computer will stop by turning thist erminal to
“Low”
~ ~ “a ~
DRX5375R/DRB4475R

Clarion DRB4475R Specifications

General

Brand	Clarion
Model	DRB4475R
Category	CD Player
Language	English