Sharp XL-G5000V Service Manual page 55

XL-G5000V/XL-G5000V(S)
IC1 VHiLC78637E-1: CD Digital Signal Processor (LC78637E) (2/2)
Pin No. Terminal Name
44 RVSS
45* RCHO
46 RVDD
47 XVDD
48 XOUT
49 XIN
50 FSX/16MIN
51 XVSS
52* C2F
53* EFLG
54* 16MOUT
55 ASLRCK
56 ASDACK
57 ASDFIN
58 LRSY
59 DATACK
60 DATA
61 CE
62 CL
63 DI
64 DO
65 *WRQ
66 *RES
67 DRF
68 VDD5
69 VSS
70* CONT3
71* CONT2
72 CONT1
73 PDO1
74 PDO2
75 VVDD
76 PCKIST
77 VVSS
78 SLCO
79 EFMIN
80 RF
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Be sure to supply the same potential to each power terminal. (AVDD1, AVDD2, VVDD, VDD, LVDD, RVDD, XVDD)
Terminal witch is controlled by the power terminal (VDD5 V) for a microcomputer interface:
CE (61 pin), CL (62 pin), DI (63 pin), DO (64 pin), *WRQ (65 pin), *RES (66 pin), DRF (67 pin), CONT1 (72 pin), CONT2 (71 pin),
CONT3 (70 pin)
Input/Output Setting in Reset
— —
Analog Output LVDD/2
Input —
Input —
Output Oscillator
Input Oscillator
Input/Output Input Mode
— —
Output H
Output L
Output CLK Output
Input —
Input —
Input —
Output L
Output L
Output L
Input —
Input —
Input —
Output (H)
Output H
Input —
Output L
Input —
— —
Input/Output Input Mode
Input/Output Input Mode
Input/Output Input Mode
Output —
Output Input Mode
Input —
Analog Input —
— —
Analog Output —
Analog Input —
Analog Output —
GND for Right channel. Must be connected to 0 V.
Right channel
Right channel output.
D/A converter
Power supply for Right channel.
Power supply for crystal oscillator.
Crystal
Connected for the 16.9344 MHz crystal oscillator cement.
oscillator
7.35 kHz Synchronization signal monitor port.
or Clock input port for DF and DAC.
Crystal GND for crystal oscillator. Must be connected to 0 V.
oscillator
C2 FLAG monitor port.
C1, C2 error corrected monitor port.
16.9344 MHz output port.
Left/Right clock input port.
(If this port does not use, must be connect to 0 V.)
Anti-shock Bit clock input port.
Mode (If this port does not use, must be connect to 0 V.)
Left/Right channel data input port.
(If this port does not use, must be connect to 0 V.)
Left/Right clock output port.
Digital data
Bit clock output port.
output
Left/Right channel data output port.
Chip enable signal input port.
Data transfer clock input port.
Microcomputer
Data input port.
Interface
Data output port. (N-ch. open drain output.)
Interruption signal output port.
Chip reset signal input port.
This port must be set "L" after first applied power on.
Focus ON detection output port.
Power supply for Microprocessor.
GND for digital circuit. Must be connected to 0 V.
General purpose port 3. Controlled with serial data command from micro-
computer. When not used, set it as the input ter-
General purpose port 2.
minal and open it by connecting to 0 V, or set it
General purpose port 1.
as the output terminal and open it.
Internal VCO control phase comparator output port 1.
Internal VCO control phase comparator output port 2.
PLL Power supply for internal VCO.
PDO1, 2 output current adjustment resistor connection port.
GND for internal VCO. Must be connected to 0 V.
For slice level Output terminal for slice level.
control
RF signal input terminal.
RF signal output terminal.
8 – 2
Function