tc9457f TOSHIBA Semiconductor CORPORATION, tc9457f Datasheet - Page 7

• Manufacturer Part Number: tc9457f
• Description: Firmware Built In Digital Servo
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Pin No.
46, 75
47, 76
45
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
P2V
Symbol
PVREF
2V
SBOK
TMAX
VCOF
SLCO
RFRP
SBAD
RFGC
LPFN
LPFO
AV
RFCT
TEBC
AV
V
RFZI
DMO
PDO
TEZI
FOO
TRO
FMO
V
V
RFI
FEI
TEI
REF
DD
SS
REF
DD
REF
SS
input/outputs
CD control
Pin Name
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
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
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
Shorter than preset period : Low level (V
Within preset period
Inverted input of low-pass filter amp.
Output of low-pass filter amp.
PLL block V
VCO filter pin.
Analog block ground pin.
DAC output pin for data slice level generation.
RF signal input pin.
Analog block power supply pin.
RFRP signal center level input pin.
RFRP zero-cross input pin.
RF ripple signal input pin.
Focus error signal input pin.
Subbeam add signal input pin.
Tracking error input pin. This input is read when tracking
servo is on.
Tracking error zero-cross input pin.
Focus equalizer output pin.
Tracking equalizer output pin.
Analog reference power supply pin.
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
REF
pin.
Function And Operation
pin.
7
DD
: High impedance.
.
SS
REF
REF
).
.
)
Analog output
Analog input
Analog input
Analog output
Analog output
Analog input
(Zin : command select)
Analog input (Zin = 50 k )
Analog input
Analog input
Analog input
Analog input
Analog input (Zin = 10 k )
Analog output
(2V
Analog output
(2V
REF
REF
to AV
to AV
Remarks
2002-10-21
TC9457F
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
Š
SS
SS
)
)