6-8. IC PIN FUNCTION DESCRIPTION
•IC501 SN761057ADBT (RF AMP, FOCUS/TRACKING ERROR AMP)
Pin No. | Pin Name | I/O |
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1 | TE | O | Tracking error signal output to the system controller | ||
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2 | REXT | — | Connect terminal to the external resistor for ADIP amp control | ||
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3 | — | Connect terminal to the external capacitor for TPP/WPP | |||
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4 | VREF | O | Reference voltage output terminal | ||
5 | C | I | Signal (C) input from the optical pickup detector | ||
6 | D | I | Signal (D) input from the optical pickup detector | ||
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7 | I | Signal (D) input from the optical pickup detector (AC input) | |||
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8 | IY | I | |||
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9 | IX | I | |||
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10 | JX | I | |||
11 | JY | I | |||
12 | A | I | Signal (A) input from the optical pickup detector | ||
13 | I | Signal (A) input from the optical pickup detector (AC input) | |||
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14 | B | I | Signal (B) input from the optical pickup detector | ||
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15 | — | Connect terminal to the external capacitor for TON hold | |||
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16 | CIG | — | Connect terminal to the external capacitor for the | ||
denominator | Not used | ||||
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17 | CDN | — | Connect terminal to the external capacitor for the | ||
denominator | Not used | ||||
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18 | I | Light amount monitor input terminal | |||
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19 | I | Reference PWM signal input for the laser automatic power control from the system controller | |||
20 | O | Light amount monitor output terminal | |||
21 | ADFG | O | ADIP duplex FM signal (22.05kHz ± 1kHz) output to the system controller | ||
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22 | DVDD | — | Power supply terminal (+1.9V) (digital system) | ||
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23 | SBUS | I/O | SSB serial data input/output with the system controller | ||
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24 | SCK | I | SSB serial clock signal input from the system controller | ||
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25 | XRST | I | Reset signal input from the system controller “L”: reset | ||
26 | OFTRK | I | Off track signal input terminal Not used | ||
27 | DGND | — | Ground terminal (digital system) | ||
28 | BOTM | O | Bottom hold signal output of the light amount signal (RF/ABCD) to the system controller | ||
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29 | PEAK | O | Peak hold signal output of the light amount signal (RF/ABCD) to the system controller | ||
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30 | VREF | — | Connect terminal to the external capacitor for the internal reference voltage | ||
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31 | VC | O | Middle point voltage (+1.2V) generation output terminal | ||
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32 | CCSL2 | — | Connect terminal to the external capacitor for TPP/WPP | ||
33 | RF OUT | O | Playback EFM RF signal output to the system controller | ||
34 | AGND | — | Ground terminal (analog system) | ||
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35 to 37 | EQ, LP, PS | — | Connect terminal to the external capacitor for the RF equalizer | ||
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38 | AVCC | — | Power supply terminal (+2.3V) (analog system) | ||
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39, 40 | OFC2, | — | Connect terminal to the external capacitor for RF AC coupling | ||
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41 | ABCD | O | Light amount signal (ABCD) output to the system controller | ||
42 | FE | O | Focus error signal output to the system controller | ||
43 | O | Servo signal monitor output to the system controller | |||
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44 | I | ADIP duplex FM signal (22.05kHz ± 1kHz) input terminal Not used | |||
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