Sharp MD-S301

MD-S301/S301W
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FUNCTION TABLE OF IC
1 RF1 RF signal input terminal 1 Input of optical pickup RF signal input
2 RF2 RF signal input terminal 2 Input of optical pickup RF signal input
3 RE3 RF signal input terminal 3 Input of optical pickup RF signal input
4 RF4 RF signal input terminal 4 Input of optical pickup RF signal input
5 REFI Reference voltage amplifier input terminal
6 REFO Reference voltage amplifier output terminal
7 RFADD RF1 to 4 resistance addition output terminal
8 TCGI Groove state track cross detection singaol amp input terminal
9 AIN Servo signal amp (focus servo system) inversion input terminal
10 BIN Servo signal amp (focus servo system) inversion input terminal
11 EIN Servo signal amp (tracking servo system) inversion input terminal
12 FIN Servo signal amp (tracking servo system) inversion input terminal
13 BIAS Bias input terminal
14 AVCC Analog section power terminal
15 XSTBY Logic signal output terminal (STBY signal inversion singaol is output)
16* XDISC Logic signal output terminal (DISC signal inversion singaol is output)
17* XSGAIN Logic signal output terminal (SGAIN signal inversion singaol is output)
18 AGND Analog section GND terminal
19 DGND Digital section GND terminal
20 DTEMP Chip temperature detection terminal
21 LATCH Latch signal input terminal
22 CLOCK Clock signal input terminal
23 DATA Serial data input terminal
24 DVCC Digital section power terminal
25 FOUT Servo signal amp (tracking servo system) output terminal
26 EOUT Servo signal amp (tracking servo system) output terminal
27 BOUT Servo signal amp (focus servo system) output terminal
28 AOUT Servo signal amp (focus servo system) output terminal
29 TCGO Groove state track cross detection signal amp output terminal
30 WBO Comparator output terminal for ADIP signal 2-gradation
31 22KI Comparator input terminal for ADIP signal 2-gradation
32 22KO ADIP signal HPF amp output terminal
33* ADLPFO ADIP signal LPF amp output terminal
34* NC Not used
35 ADIPO ADIP signal preamp output terminal
36 ADIPI ADIP AGC amp output terminal
37 ADAGC ADIP signal AGC smoothing capacitor connecting terminal
38 ADAGI ADIP signal AGC amplifier input terminal
39 RF2-1 RF1 and RF2 differential signal
40 EFMO RF signal preamplifier output terminal
41* EFMI RF signal AGC amplifier output terminal
42 AVCC Analog section power terminal
43 AGND Analog section GND terminal
44 EFMAGC Terminal to connect smoothing capacitor for EFM signal AGC
45 EFMAGI EFM signal AGC amplifier output terminal
46 ATTR Pin 47 and 48 output signal attenuation terminal
47 GOUT Groove state RF1+RF2-RF3-RF4 signal output
48 POUT Pit state RF1 to 4 resistance addition output
IC101 VHiiR3R55//-1 (IR3R55): RF signal processing
Pin No.
Function
Terminal Name
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.