Chapter 8. Others; Function Table Of Ic - Sharp CD-MPX870 Service Manual

CD-MPX870

CHAPTER 8. OTHERS

[1] Function table of IC

IC1 VHiLC78690E-1: CD Servo (LC78690E) (1/2)
Pin No. Terminal Name
1 EFMIN
2 RFOUT
3 LPF
4 PHLPF
5 AIN
6 CIN
7 BIN
8 DIN
9 FEC
10* RFMON
11 VREF
12 JITTC
13 EIN
14 FIN
15 TEC
16 TE
17 TEIN
18 LDD
19 LDS
20 AVSS
21 AVDD
22 FDO
23 TDO
24 SLDO
25 SPDO
26 VVSS1
27 PDOUT1
28 PDOUT0
29 PCKIST
30 VVDD1
31* DMUTEB
32 PUIN
33* DEFECT
34* FSEQ
35* C2F
36 DVDD
37 DVSS
38 DVDD1.8
39 VDD3
40 VVSS3
41 DVDD
42 DVSS
43 CE
44 CL
45 DI
46 DO
47 RESB
48 INTB0
49 INTB1
50 ICONT2
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Input/Output Setting in Reset
Input INPUT
Output UNSTABLE
Output UNSTABLE
Output UNSTABLE
Input INPUT
Input INPUT
Input INPUT
Input INPUT
Output UNSTABLE
Output UNSTABLE
Output AVDD/2
Output UNSTABLE
Input INPUT
Input INPUT
Output UNSTABLE
Output UNSTABLE
Input INPUT
Output UNSTABLE
Input INPUT
— —
— —
Output AVDD/2
Output AVDD/2
Output AVDD/2
Output AVDD/2
— —
Output UNSTABLE
Output UNSTABLE
Input INPUT
— —
Output L
Input/Output INPUT
Output L
Output L
Output L
— —
— —
Output H
— —
— —
— —
— —
Input INPUT
Input INPUT
Input INPUT
Output H
Input —
Output H
Output H
Input/Output INPUT
RF signal input pin.
RF signal output pin.
RF signal DC level detection. LPF capacitor connection pin.
LPF capacitor pin for detection problem.
A signal input pin.
C signal input pin.
B signal input pin.
D signal input pin.
FE signal LPF capacitor connection pin.
Built in analog signal for monitoring LSI pin.
VREF voltage output pin.
Jitter detection capacitor connection pin.
E signal input pin.
F signal input pin.
TE signal LPF capacitor connection pin.
TE signal output pin.
TES signal generation TE signal input pin.
Laser power control signal output pin.
Laser power control signal input pin.
Analog GND pin. This pin must always be connected to 0V.
Analog power supply pin.
Focus control output pin. D/A converter output.
Tracking control output pin. D/A converter output.
SLED control output pin. D/A converter output.
SPINDLE control output pin. D/A converter output.
For use Built-in VCO GND pin. This pin must always be connected to 0V.
by the
Phase comparison output pin 1 to control built in VCO.
EFM
Phase comparison output pin 0 to control built in VCO.
PLL
Resistor connection pin to set current for PDOUT 0 and 1 output.
Circuit
Built_in VCO power supply pin 1.
DMUTEB output pin.
PUIN input pin. (built-in pull-up resistor)
DEFECT signal output pin.
Detected sync signal output. This signal is high when the sync signal
detected from the EFM signal and the internally generated sync signal
agree.
C2 error flag monitor output pin.
Digital power supply pin.
Digital GND pin. This pin must always be connected to 0V.
Supply voltage connect to capacitor for digital circuit.
Built-in VCO power supply pin 3.
Built-in VCO GND pin 3. This pin must always be connected to 0V.
Digital power supply pin.
Digital GND pin. This pin must always be connected to 0V.
Micro- Chip enable signal input pin.
Com-
Data transfer clock input pin.
puter
Data input pin.
Inter-
Data output pin. (TRI-State Output)
face
Reset input pin for LSI. This pin must set to low briefly after power is
applied.
Interrupt signal output pin 0. (SERVO Section)
Interrupt signal output pin 1. (DECODER Section)
General Purpose I/O pin 2 Controlled by command from the microproces-
sor. Any of these that are unused must be
either set up as input pin ports and connected
to 0V, or set up as output pin ports and left
open.
8 – 1
Function