MDS-JE770
Pin No. | Pin Name | I/O | Description |
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48 | D1 | I/O |
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49 | D0 | I/O | Data input/output for DRAM |
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50, 51 | D2, D3 | I/O |
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52 | MVCI | I (S) | Clock input from an external VCO (Fixed at “L”) |
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53 | ASYO | O | Playback EFM duplex signal output |
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54 | ASYI | I (A) | Playback EFM comparator slice level input |
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55 | AVDD | I | +3V power supply (Analog) |
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56 | BIAS | I (A) | Playback EFM comparator bias current input |
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57 | RFI | I (A) | Playback EFM RF signal input |
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58 | AVSS | — | Ground (Analog) |
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59 | PCO | O (3) | Phase comparison output for the recording/playback EFM master PLL |
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60 | FILI | I (A) | Filter input for the recording/playback EFM master PLL |
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61 | FILO | O (A) | Filter output for the recording/playback EFM master PLL |
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62 | CLTV | I (A) | Internal VCO control voltage input for the recording/playback EFM master PLL |
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63 | PEAK | I (A) | Light amount signal peak hold input from the CXA2523AR |
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64 | BOTM | I (A) | Light amount signal bottom hold input from the CXA2523AR |
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65 | ABCD | I (A) | Light amount signal input from the CXA2523AR |
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66 | FE | I (A) | Focus error signal input from the CXA2523AR |
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67 | AUX1 | I (A) | Auxiliary A/D input |
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68 | VC | I (A) | Middle point voltage (+1.5V) input from the CXA2523AR |
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69 | ADIO | O (A) | Monitor output of the A/D converter input signal (Not used) |
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70 | AVDD | I | +3V power supply (Analog) |
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71 | ADRT | I (A) | A/D converter operational range upper limit voltage input (Fixed at “H”) |
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72 | ADRB | I (A) | A/D converter operational range lower limit voltage input (Fixed at “L”) |
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73 | AVSS | — | Ground (Analog) |
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74 | SE | I (A) | Sled error signal input from the CXA2523AR |
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75 | TE | I (A) | Tracking error signal input from the CXA2523AR |
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76 | DCHG | I (A) | Connected to +3V power supply |
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77 | TEST4 | I | Test input (Fixed at “H”) |
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78 | ADFG | I (S) | ADIP duplex FM signal input from the CXA2523AR (22.05 ± 1 kHz) |
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79 | F0CNT | O | Filter f0 control output to the CXA2523AR |
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80 | XLRF | O | Control latch output to the CXA2523AR |
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81 | CKRF | O | Control clock output to the CXA2523AR |
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82 | DTRF | O | Control data output to the CXA2523AR |
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83 | APCREF | O | Reference PWM output for the laser APC |
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84 | TEST0 | O | PWM output for the laser digital APC (Not used) |
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85 | TRDR | O | Tracking servo drive PWM output |
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•Abbreviation
EFM: Eight to Fourteen Modulation
PLL : Phase Locked Loop
VCO: Voltage Controlled Oscillator
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