CXD3003 datasheet(120/137 Pages) SONY

120 / 137 page

– 120 –

CXD3003R

$3D (preset: $3D 00 00)

D15

D14

D13

D12

D11

D10

SFID SFSK THID THSK

TLD2 TLD1 TLD0

SFID:

SLED servo filter input can be obtained not from SLD in Reg, but from M0D, which is the TRK

filter second-stage output.

When the low frequency component of the tracking error signal obtained from the RF amplifier

is attenuated, the low frequency can be amplified and input to the SLD servo filter.

SFSK:

Only during TRK servo gain up2 operation, coefficient K30 is used instead of K00. Normally

the DC gain between the TE input pin and M0D changes for TRK filter gain normal and gain

up2, and error occurs in the DC level at M0D. In this case, the DC level of the signal

transmitted to M00 can be kept uniform by adjusting the K30 value even during the above

switching.

THID:

TRK hold filter input can be obtained not from SLD in Reg, but from M0D, which is the TRK

filter second-stage output.

When signals other than the tracking error signal from the RF amplifier are input to the SE input

pin, the signal transmitted from the TE pin can be obtained as TRK hold filter input.

THSK:

Only during TRK servo gain up2 operation, coefficient K46 is used instead of K40. Normally

the DC gain between the TE input pin and M0D changes for TRK filter gain moral and gain up

2, and error occurs in the DC level at M0D. In this case, the DC level of the signal transmitted

to M18 can be kept uniform by adjusting the K46 value even during the above switching.

∗ Please refer to § 5-21. Filter Composition, for further information on SFID, SFSK, THID and

THSK commands.

TLD0 to 2:

SLD filter correction turns on and off independently of the TRK filter.

Please refer also to $38 (TLC0 to 2) and Figure 5-3.

TLC0

—

OFF

TLD0

VC level correction

TRK filter

SLD filter

∗: preset, — : Don't care

∗

TLC1

—

OFF

TLD1

Tracking zero level correction

TRK filter

SLD filter

∗

TLC2

—

OFF

TLD2

Traverse center correction

TRK filter

SLD filter

∗

CXD3003 Datasheet(PDF) 120 Page - Sony Corporation

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