S5L1454A Просмотр технического описания (PDF) - Samsung

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S5L1454A

DVD PLAYER DIGITAL SERVO & DSP IC

Samsung 

DVD PLAYER DIGITAL SERVO & DSP IC

S5L1454A

¢º¢º TRACKING PULL-IN

Summary

When a TRK pull-in command is received in off track status, the tracking loop is turned on. If SLSV = L, sled is

turned on simultaneously.

 input signal : TE, MIRR

 output signal : TRD, TLKB

Execution COMMAND

TONcmd(03xxxx) transmission

Related Register

Register

GuT

dlyTG

TLoff

TLon

Address

0046

1096

004F

0050

Function

TRK Gain up time after TRK_pull_in

TGup delay time after completing GuT

TLKB (Tracking Lock) off time

TLKB (Tracking Lock) on time

Command

ACFFF5

BE1096

ACFFFE

ACFFFF

Operation Description

 GuT (+dlyTG) must be set so that right after tracking on, gain is up to the tracking servo's settling period

(period where the remaining difference exceeds the allowed range) to raise the stability of track pull-in.

 If a beam spot exists between tracks during play (deviation from the track), the RF IC outputs to MIRR = H.

tracking lock status is determined using the MIRROR signal.

MIRR

TLoff

TLon

TLKB

Lock off

FOCUS / TRACKING manual gain up/down command :

The MICOM can optionally set the gain.

GAIN

manual fcs down/trk up

manual fcs down/trk norm

manual fcs/trk gain normal

manual fcs norm/trk up

manual fcs/trk gain change off

COMMAND

FBF000

FBE000

FBA000

FBB000

FB0000

Fchg

H

H

H

H

L

DWN (fcs)

H

H

L

L

don't care

Tchg

H

H

H

H

L

UP (trk)

H

L

L

H

don't care

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