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TC9457F Scheda tecnica(PDF) 7 Page - Toshiba Semiconductor

Il numero della parte TC9457F
Spiegazioni elettronici  Firmware Built In Digital Servo
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Produttore elettronici  TOSHIBA [Toshiba Semiconductor]
Homepage  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TC9457F Scheda tecnica(HTML) 7 Page - Toshiba Semiconductor

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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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