Download Sharp CD-MPX870H Service manual

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CD-MPX870
IC1 VHiLC78690E-1: CD Servo (LC78690E) (2/2)
Pin No.
51
52
Terminal Name
CONT1
CONT0
Input/Output
Input/Output
Input/Output
Setting in Reset
INPUT
INPUT
53
54
55
56
57
58*
59*
60*
61
62
63
64
65
TEST0
STREQ
STCK
STDATA
TEST1
DATA
DATACK
LRSY
VVDD2
VPREF2
VCOC2
VPDOUT2
VVSS2
Input
Input/Output
Input/Output
Input/Output
Input
Output
Output
Output
—
Input
Input
Output
—
L
INPUT
INPUT
INPUT
L
L
L
L
—
INPUT
INPUT
UNSTABLE
—
66
67
68
69*
70*
71
72
73
74
75
76
77
DVDD1.8
DVSS
DVDD
DOUT
AMUTEB
XVSS
XOUT
XIN
XVDD
LCHO
LRVDD
LRVSS
Output
—
—
Output
Output
—
Output
Input
—
Output
—
—
H
—
—
Input
L
—
OSCILLATING
OSCILLATING
—
LRVDD/2
—
—
78
79
80
RCHO
AVDD
SLCO
Output
—
—
LRVDD/2
—
—
Function
Controlled by command from the microprocessor. 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.
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.
Built-in VCO power supply pin 2.
For use by
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
General Purpose I/O pin 1
General Purpose I/O pin 0
Digital power supply pin.
D/A conLeft 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.
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
8–2