Advertisement
IC DESCRIPTION
IC, CXP82532-123Q
V0
Description
:
_
2
VO-SERIAL
I-DATA TU
yO
The present state is backed up when "L" = input.
VO for FD communication.
Data input from TU PLL.
2
I-REMOTE
Zz
Remote control signal input.
3
1-TUNE
I
Frequency disply and sending data to PLL are stopped during tuner reception. (L=input)
4
O-CLK TU
O
"TU PLL clock.
5
O-PLL CE
oO
TU PLL chip enable.
6
O-STB DSP
oO
STB for DSP
7
O-LED GEQ
Oo
Light on when GEQ MANUAL.
| 8
|
o-cLK
| 0 | CLK forshift register and DSP.
9
|
O-CLKDGEQ
| o | CLK for electronic GEQ.
0
O-DATA
| o |
Data for shift register, TU and electronic GEQ.
14~19
ee
ee
ee Ww
O-STB SR
O-LED 1~6
:
STB for shift register.
Output to light GEQ LEDs. "L" to light.
20
I-INITIAL
Input to initially set the micro-computer shipment destination.
21
I-TRAY OPEN
CONTROL TRAY OPEN detect switch input. "L" when TRAY OPEN.
22~25
I-KEY 1~4
Key A/D input.
26
nN ao
nN
O-FS.RESET
I-SPE
SPECTRUM ANALYZER IC RESET output.
SPECTRUM ANALYZER IC OUT input.
I-MIC
Mic input signal / Auto VF control.
29
O-STB VOL
oO
STB for C/S-ch trim electronic vol.
I-RST
I
Reset input. Reset when "L".
31,32
EXTAL/XTAL
O/T
Oscillation crystal connection pin. (7.6MHz)
33
GND
-
Ground.
Output "H" when GEQ PROGRAM.
5 s ]
OLEDTU | 0 | Oupwiolgh TUPRESETLED. "i when TUNER ncion
36
O-LED VOL
Oo
Output to light VOL LED. "H" when VOL LED light.
Encode output for DSP LED display.
O-SEG 1~3/SPESW YZ
O
Segment output and spectrum analyzer IC control output to light FL.
49~58
O-SEG 1~3
oO
Segment output to light FL.
59~70
O-GRID 12~1
Oo
Grid output to light FL.
71
-VFL
I
Pull down resistor common terminal for FL. (-28V)
72
VDD
I
Power supply. (+5V)
73
NC
I
Connected to VDD. (Not used)
75
76
77
O-LED DSP
1-ST/BIL
O-MUTE
O-POWER
78,79
Gi/G12
I-TIME B
:
ay
—
Encode output for DSP LED display.
FL stereo mark lights when "L" is input.
Muting output. (Mute on when "L")
"L" output during power ON.
Timing-1/2 from SPECTRUM ANALYZER.
CLK (8kHz) input for clock.
- 38 ~
Advertisement
