-33-
IC DESCRIPTION -1/1 (IC,TC94A23F) -2/3
Pin No.
52
53
54
55
56
57
58
59
60
61
62
63
64
65
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68
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71
72
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Pin Name
LPFO
PV
REF
VCOF
AV
SS
SLCO
RFI
AV
DD
RFCT
RFZI
RFRP
FEI
SBAD
TEI
TEZI
FOO
TRO
V
REF
RFGC
TEBC
FMO
DMO
2V
REF
SEL
V
DD
V
SS
XV
SS
XI
XO
TESTM
IN2/(VPP)
RST
HOLD
INTR
MXO
MXI
I/O
O
–
I
–
O
I
–
I
I
I
I
I
I
I
O
O
–
O
O
O
O
–
O
–
–
–
I
O
–
–
O
–
–
–
O
–
I
I
I
I
I
O
I
Description
Low-pass filter amplifier output.
PLL system V
REF
terminal.
VCO filter.
Analog system GND.
DAC output for generating data slice level.
RF signal input.
Analog system power supply:5V.
RFRP signal center level input.
RFRP zero-cross input.
RF ripple signal input.
Focus error signal input.
Sub-beam add signal input.
Tracking error input.
Tracking error zero-cross input.
Focus equalizer output.
Tracking equalizer output.
Analog reference power 5V.
RF signal amplitude adjustment control signal output.
Tracking balance control signal output.
Focus equalizer output.
Disc equalizer output.
Analog reference power 5V.
APC circuit ON/OFF signal output.
CD section digital system power 5V.
CD section digital system GND.
CD section crystal oscillator GND.
CD section crystal oscillator input.
CD section crystal oscillator output.
CD section crystal oscillator power 5V.
R-channel DA converter GND.
R-channel data positive polarity output.
R-channel reference v5V.
DA converter power 5V.
L-channel reference v5V.
L-channel data positive polarity output.
L-channel DA converter GND.
Test mode control input.
Not conntected.
Microprocessor reset input.
Hold status detection:Entering Hold at “L”.
Remote control input.
Crystal oscillator terminal for controller.
Crystal oscillator terminal for controller.
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9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
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4
2
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0
5
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3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
