6-9. IC PIN DESCRIPTIONS
• MAIN BOARD IC501 SN761056ADBT (RF AMP, FOCUS/TRACKING ERROR AMP)
Pin No. | Pin Name | I/O | Pin Description | ||
1 |
| TE | O | Tracking error signal output to the CXD2660GA (IC502) | |
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2 |
| REXT | — | Connected to the external resistor for the ADIP amplifier control | |
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3 | WPPLPF | — | Connected to the external capacitor for | ||
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4 | VREF11 | O | Reference voltage output terminal (+1.1 V) | ||
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5 |
| C | I | Signal input from the optical | |
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6 |
| D | I | Signal input from the optical | |
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| I | Signal input from the optical | ||
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8 |
| IY | I | ||
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9 |
| IX | I | ||
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10 |
| JX | I | ||
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11 |
| JY | I | ||
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12 |
| A | I | Signal input from the optical | |
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13 |
| I | Signal input from the optical | ||
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14 |
| B | I | Signal input from the optical | |
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15 | — | Connected to the external capacitor for the TON hold | |||
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16 |
| CIG | — | Connected to the external capacitor for | |
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17 |
| CDN | — | Connected to the external capacitor for | |
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18 |
| I | Light amount monitor input terminal | ||
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19 |
| I | Light amount monitor input terminal (invert input) | ||
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20 |
| O | Light amount monitor output terminal | ||
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21 |
| ADFG | O | ADIP duplex FM signal (22.05 kHz ± 1 kHz) output to the CXD2660GA (IC502) | |
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22 | DVDD | — | Power supply terminal (+2.4 V) (digital system) | ||
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23 |
| SBUS | I/O | ||
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24 |
| SCK | I | SSB serial clock signal input from the system controller (IC801) | |
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25 |
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| I | Reset signal input from the system controller (IC801) “L”: reset |
| XRST | ||||
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26 | OFTRK | I | Off track signal input from the CXD2660GA (IC502) | ||
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27 | DGND | — | Ground terminal (digital system) | ||
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28 | BOTM | O | Light amount signal (RF/ABCD) bottom hold output to the CXD2660GA (IC502) | ||
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29 |
| PEAK | O | Light amount signal (RF/ABCD) peak hold output to the CXD2660GA (IC502) | |
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30 | VREF075 | — | Connected to the external capacitor for the internal reference voltage | ||
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31 |
| VC | O | Middle point voltage (+1.2 V) generation output terminal | |
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32 | CCSL2 | — | Connected to the external capacitor for | ||
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33 | RF OUT | O | Playback EFM RF signal output to the CXD2660GA (IC502) | ||
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34 | AGND | — | Ground terminal (analog system) | ||
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35 |
| EQ | — | Connected to the external capacitor for the RF equalizer | |
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36 |
| LP | — | Connected to the external capacitor for the RF equalizer | |
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37 |
| PS | — | Connected to the external capacitor for the RF equalizer | |
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38 | — | Connected to the external capacitor for the RF AC coupling | |||
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39 | — | Connected to the external capacitor for the RF AC coupling | |||
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40 |
| AVCC | — | Power supply terminal (+2.4 V) (analog system) | |
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41 | ABCD | O | Light amount signal (ABCD) output to the CXD2660GA (IC502) | ||
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42 |
| FE | O | Focus error signal output to the CXD2660GA (IC502) | |
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43 | O | Servo signal monitor output to the system controller (IC801) | |||
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44 | I | ADIP duplex FM signal (22.05 kHz ± 1 kHz) input terminal Not used | |||
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