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TC9457F Scheda tecnica(PDF) 7 Page - Toshiba Semiconductor |
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TC9457F Scheda tecnica(HTML) 7 Page - Toshiba Semiconductor |
7 / 15 page TC9457F 2002-10-21 7 Pin No. Symbol Pin Name Function And Operation Remarks 45 SBOK Subcode Q data CRCC determination result output pin. It outputs a high when CRCC check is found OK. ― 46, 75 VDD ― 47, 76 VSS CD unit's digital block power supply pins. Normally, apply 5 V to VDD. When not using a CD (CD off), this power supply can be turned off, with only the controller power supply kept active, so that the controller alone is operating. In this case, the CDoff bit must be set to 1. When this bit is set to 1, pins 11 through 18 and pins 39 through 42 all are changed for output ports if they have been set for CD control signal input/output pins. ― 48 P2VREF PLL block-2 VREF pin. ― 49 PDO This pin outputs a phase error between EFM and PLCK signals. ― 50 TMAX TMAX detection result output pin. Selected by command bit TMPS. Longer than preset period : Outputs P2VREF. Shorter than preset period : Low level (VSS). Within preset period : High impedance. ― 51 LPFN Inverted input of low-pass filter amp. Analog input 52 LPFO Output of low-pass filter amp. Analog output 53 PVREF PLL block VREF pin. ― 54 VCOF VCO filter pin. Analog output 55 AVSS Analog block ground pin. ― 56 SLCO DAC output pin for data slice level generation. Analog output 57 RFI RF signal input pin. Analog input (Zin : command select) 58 AVDD Analog block power supply pin. ― 59 RFCT RFRP signal center level input pin. Analog input (Zin = 50 kΩ) 60 RFZI RFRP zero-cross input pin. Analog input 61 RFRP RF ripple signal input pin. Analog input 62 FEI Focus error signal input pin. Analog input 63 SBAD Subbeam add signal input pin. Analog input 64 TEI Tracking error input pin. This input is read when tracking servo is on. Analog input 65 TEZI Tracking error zero-cross input pin. Analog input (Zin = 10 kΩ) 66 FOO Focus equalizer output pin. Analog output (2VREF to AVSS) 67 TRO Tracking equalizer output pin. Analog output (2VREF to AVSS) 68 VREF Analog reference power supply pin. ― 69 RFGC RF amplitude adjusting control signal output pin. It outputs 3-level PWM signals. (PWM carrier = 88.2 kHz) ― 70 TEBC Tracking balance control signal output pin. It outputs 3-level PWM signals. (PWM carrier = 88.2 kHz) ― 71 FMO Focus equalizer output pin. It outputs 3-level PWM signals. (PWM carrier = 88.2 kHz) ― 72 DMO Disc equalizer output pin. It outputs 3-level PWM signals. (PWM carrier = DSP block 88.2 kHz, synchronized to PXO) ― 73 2VREF CD control input/outputs Analog reference power supply pin. (2 × VREF) ― |
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