TC9462F_01 datasheet(4/17 Pages) TOSHIBA

Part #	TC9462F

Description	Digital Servo Single Chip Processor

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Manufacturer	TOSHIBA [Toshiba Semiconductor]

Direct Link	http://www.semicon.toshiba.co.jp/eng

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TC9462F

2001-11-05

4

Pin No.

Symbol

I/O

Functional Description

Remarks

29

TMAXS

O

TMAX detection result output terminal. Selected by

command bit (TMPS).

3-state output.

(P2VREF, PVREF, VSS)

30

TMAX

O

TMAX detection result output terminal. Selected by

command bit (TMPS).

TMAX Detection

TMAX Output

Longer than fixed freq.

“P2VREF”

Shorter than fixed freq.

“VSS”

Within the fixed freq.

“HiZ”

3-state output.

(P2VREF, HiZ, VSS)

31

LPFN

I

LPF amplifier inverting input terminal for PLL.

Analog input.

32

LPFO

O

LPF amplifier output terminal for PLL.

Analog output.

33

PVREF

¾

PLL reference voltage supply terminal.

¾

34

VCOREF

I

VCO center frequency reference level terminal.

Normally, keep at “PVREF” level.

¾

35

VCOF

O

VCO filter terminal.

Analog output.

36

AVSS

¾

Analog GND terminal.

¾

37

SLCO

O

Data slice level output terminal.

Analog output.

38

RFI

I

RF signal input terminal.

Analog input.

(Zin: selected by command)

39

AVDD

¾

Analog power supply voltage terminal.

¾

40

RFCT

I

RFRP signal center level input terminal.

Analog input.

(Zin: 50 kW)

41

RFZI

I

RFRP zero cross input terminal.

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 “VREF” level.

Analog input.

46

TEI

I

Tracking error signal input terminal.

Take in at tracking servo on.

Analog input.

47

TEZI

I

Tracking error zero cross input terminal.

Analog input.

(Zin: 10 kW)

48

FOO

O

Focus servo equalizer output terminal.

49

TRO

O

Tracking servo equalizer output terminal.

Analog output.

(2VREF~AVSS)

50

VREF

¾

Analog reference voltage supply terminal.

¾

51

RFGC

O

RF amplitude adjustment control signal output terminal.

3-state PWM signal output. (PWM carrier

= 88.2 kHz)

52

TEBC

O

Tracking balance control signal output terminal.

3-state PWM signal output. (PWM carrier

= 88.2 kHz)

53

FMO

O

Feed equalizer output terminal.

3-state PWM signal output. (PWM carrier

= 88.2 kHz)

54

FVO

O

Speed error signal or feed search equalizer output terminal.

3-state PWM signal output. (PWM carrier

= 88.2 kHz)

55

DMO

O

Disc equalizer output terminal.

(PWM carrier

= 88.2 kHz for DSP, Synchronize to PXO)

3-state output.

(2VREF, VREF, VSS)

56

2VREF

¾

Analog double reference voltage supply terminal.

¾

57

SEL

O

APC circuit ON/OFF indication signal output terminal.

At the laser on time, “HiZ” level at UHS

= L and “H” level at

UHS

= H.

¾

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