TC9495F Datasheet, PDF (4/17 Pages) Toshiba Semiconductor – Digital Servo Single Chip Processor Built in 1 Bit DA Converter

TC9495F
Pin No.
25
26
27
28
29
30
Symbol
P2V_REF
HSSW
ZDET
PDO
TMAXS
TMAX
I/O
Functional Description
¾ PLL double reference voltage supply terminal.
O 2/4 times speed at “V_REF” voltage.
O 1 bit DA converter zero detect flag output terminal.
O
Phase difference signal output terminal of EFM signal and
PLCK signal.
O
TMAX detection result output terminal. Selected by
command bit (TMPS).
TMAX detection result output terminal. Selected by
command bit (TMPS).
Remarks
¾
2-state output.
(PV_REF, HiZ)
¾
3-state output.
(P2V_REF, PV_REF, V_SS)
3-state output.
(P2V_REF, PV_REF, V_SS)
Difference Result
O
Longer than fixed freq.
Shorter than fixed freq.
Within the fixed freq.
TMAX Output
“P2V_REF”
“V_SS”
“HiZ”
3-state output.
(P2V_REF, HiZ, V_SS)
31
LPFN
I LPF amplifier inverting input terminal for PLL.
Analog input.
32
LPFO
O LPF amplifier output terminal for PLL.
Analog output.
33
PV_REF
¾ PLL reference voltage supply terminal.
VCO center frequency reference level terminal.
34
VCOREF
I
Normally, keep at “PV_REF” level.
35
VCOF
O VCO filter terminal.
¾
¾
Analog output.
36
AV_SS
¾ Analog GND terminal.
37
SLCO
O Data slice level output terminal.
¾
Analog output.
38
RFI
I RF signal input terminal.
39
AV_DD
¾ Analog power supply voltage terminal.
40
RFCT
I RFRP signal center level input terminal.
41
RFZI
I RFRP zero cross input terminal.
Analog input.
(Z_in: selected by command)
¾
Analog input.
(Z_in: 50 kW)
Analog input.
42
RFRP
I RF ripple signal input terminal.
Analog input.
43
FEI
I Focus error signal input terminal.
Analog input.
44
SBAD
I Sub-beam adder signal input terminal.
Analog input.
45
TSIN
I Test input terminal. Normally, keep at “V_REF” level.
Tracking error signal input terminal.
46
TEI
I
Take in at tracking servo on.
Analog input.
Analog input.
47
TEZI
I Tracking error zero cross input terminal.
48
FOO
O Focus servo equalizer output terminal.
Analog input.
(Z_in: 10 kW)
Analog output.
49
TRO
O Tracking servo equalizer output terminal.
(2V_REF~AV_SS)
50
V_REF
¾ Analog reference voltage supply terminal.
¾
51
RFGC
O RF amplitude adjustment control signal output terminal.
3-state output.
52
TEBC
O Tracking balance control signal output terminal.
(2V_REF, V_REF, V_SS)
53
FMO
O Feed equalizer output terminal.
¾
54
FVO
O Speed error signal or feed search equalizer output terminal.
¾
4
2002-01-11