Sharp CD-MPX870 Service Manual page 85

IC1 VHiLC78690E-1: CD Servo (LC78690E) (2/2)
Pin No. Terminal Name
51 CONT1
52 CONT0
53 TEST0
54 STREQ
55 STCK
56 STDATA
57 TEST1
58* DATA
59* DATACK
60* LRSY
61 VVDD2
62 VPREF2
63 VCOC2
64 VPDOUT2
65 VVSS2
66 DVDD1.8
67 DVSS
68 DVDD
69* DOUT
70* AMUTEB
71 XVSS
72 XOUT
73 XIN
74 XVDD
75 LCHO
76 LRVDD
77 LRVSS
78 RCHO
79 AVDD
80 SLCO
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Input/Output Setting in Reset
Input/Output INPUT
Input/Output INPUT
Input L
Input/Output INPUT
Input/Output INPUT
Input/Output INPUT
Input L
Output L
Output L
Output L
— —
Input INPUT
Input INPUT
Output UNSTABLE
— —
Output H
— —
— —
Output Input
Output L
— —
Output OSCILLATING
Input OSCILLATING
— —
Output LRVDD/2
— —
— —
Output LRVDD/2
— —
— —
General Purpose I/O pin 1
General Purpose I/O pin 0
Test input pin 1. This pin must always be connected to 0V.
Stream data request output pin.
Stream data bit clock usage input pin.
Stream data input pin.
Test input pin 0. This pin must always be connected to 0V.
Left/Right clock output pin.
Bit clock output pin.
Left/Right channel data output pin.
For use by Built-in VCO power supply pin 2.
the EFM
Built-in VCO control oscillator range setting input pin.
PLL Circuit
Built-in VCO control voltage setting input pin.
Built-in VCO control output pin 2.
Built-in VCO GND pin. This pin must always be connected to
0V.
Supply voltage connect to condenser for digital circuit.
Digital GND pin. This pin must always be connected to 0V.
Digital power supply pin.
Digital output pin. EIAJ format.
GAMUTEB output pin.
Digital GND pin. This pin must always be connected to 0V.
Crystal Connections for a 16.9344 MHZ oscillator element.
oscillator
Digital power supply pin.
D/A con- Left channel output supply pin.
verter
LR channel power supply pin.
LR channel GND pin. This pin must always be connected to
0V.
Right channel input supply pin.
Analog power supply pin.
Slice level control output pin.
8 – 2
Function
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.
CD-MPX870