TC9457F Datasheet, PDF (7/15 Pages) Toshiba Semiconductor – Firmware Built In Digital Servo

TC9457F
Pin No.
45
46, 75
47, 76
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
Symbol
SBOK
V_DD
V_SS
P2V_REF
PDO
TMAX
LPFN
LPFO
PVREF
VCOF
AV_SS
SLCO
RFI
AV_DD
RFCT
RFZI
RFRP
FEI
SBAD
TEI
TEZI
FOO
TRO
V_REF
RFGC
TEBC
FMO
DMO
2V_REF
Pin Name
Function And Operation
Remarks
Subcode Q data CRCC determination result output pin. It
outputs a high when CRCC check is found OK.
―
CD unit's digital block power supply pins.
Normally, apply 5 V to V_DD.
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.
PLL block-2 V_REF pin.
―
This pin outputs a phase error between EFM and PLCK
signals.
―
TMAX detection result output pin. Selected by command
bit TMPS.
Longer than preset period : Outputs P2V_REF.
―
Shorter than preset period : Low level (V_SS).
Within preset period
: High impedance.
Inverted input of low-pass filter amp.
Analog input
Output of low-pass filter amp.
Analog output
PLL block V_REF pin.
VCO filter pin.
―
Analog output
Analog block ground pin.
―
DAC output pin for data slice level generation.
Analog output
RF signal input pin.
CD control
input/outputs
Analog block power supply pin.
RFRP signal center level input pin.
Analog input
(Zin : command select)
―
Analog input (Zin = 50 kΩ)
RFRP zero-cross input pin.
Analog input
RF ripple signal input pin.
Analog input
Focus error signal input pin.
Analog input
Subbeam add signal input pin.
Analog input
Tracking error input pin. This input is read when tracking
servo is on.
Analog input
Tracking error zero-cross input pin.
Analog input (Zin = 10 kΩ)
Focus equalizer output pin.
Tracking equalizer output pin.
Analog reference power supply pin.
Analog output
(2V_REF to AV_SS)
Analog output
(2V_REF to AV_SS)
―
RF amplitude adjusting control signal output pin. It outputs
3-level PWM signals. (PWM carrier = 88.2 kHz)
―
Tracking balance control signal output pin. It outputs
3-level PWM signals.
―
(PWM carrier = 88.2 kHz)
Focus equalizer output pin. It outputs 3-level PWM
signals.
―
(PWM carrier = 88.2 kHz)
Disc equalizer output pin. It outputs 3-level PWM signals.
(PWM carrier = DSP block 88.2 kHz, synchronized to
―
PXO)
Analog reference power supply pin. (2 × V_REF)
―
7
2002-10-21