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Symbol
Pin No.
21
VREF
22
EQADJ
23
3TADJ
24
25
WBLADJ
26
27
CSLED
28
29
ADFM
30
ADIN
31
ADAGC
32
ADFG
33
AUX
34
35
ABCD
36
BOTM
37
PEAK
38
39
RFAGC
40
AGCI
41
COMPO
42
COMPP
43
ADDC
44
OPO
45
OPN
46
RFO
47
MORFI
48
MORFO
GP1UM271XK (IC901) : Receiver for remote
+
–
Amp.
I/O
Reference voltage output.
O
Equalizer center frequency setting pin.
I/O
BPF3T center frequency setting pin.
I/O
Power supply.
Vcc
-
BPF22 center frequency setting pin.
I/O
Tracking error signal output.
TE
O
Connects the sled error signal LPF capacitor.
-
Sled error signal output.
SE
O
ADIP FM signal output.
O
ADIP signal comparator input.
I
Connects the ADIPAGC capacitor.
-
ADIP2 binary value signal output.
O
13 output / temperature signal output. Switched with serial commands.
O
Focus error signal output.
FE
O
Reflection light quantity signal output for the main beam servo detector.
O
RF/ABCD bottom hold signal output.
O
Peak hold signal output for the RF/ABCD signals.
O
RF equalizer output.
RF
O
Connects the RFAGC capacitor.
-
RFAGC input.
I
User comparator output.
O
User comparator non-inverted input.
I
Connects the capacitor for ADIP amplifier feedback circuit.
I/O
User operational amplifier output.
O
User operational amplifier inverted input.
I
RF amplifier output. Eye pattern checkpoint.
O
Input of the groove RF signal with AC coupling.
I
Groove RF signal output.
O
Limiter
B.P.F
Function
Integrator
Comparator
Demodulator
GND
VCC
UX-F70MD/UX-F72MD
Vout
1-59
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