LC78622E データシートの表示（PDF） - SANYO -> Panasonic

部品番号

コンポーネント説明

メーカー

LC78622E

Compact Disc Player DSP

SANYO -> Panasonic 

LC78622E

5. Tracking brake

The chart shows the relationships between the TES, HFL, and TOFF signals during the track jump C period. The TOFF signal is extracted from the

HFL signal by TES signal edges. When the HFL signal is high, the pickup is over the mirror surface, and when low, the pickup is over data bits.

Thus braking is applied based on the TOFF signal being high when the pickup is moving from a mirror region to a data region and being low when

the pickup is moving from a data region to a mirror region.

• JP three-value output

MSB

LSB

10110110

10110111

Command

JP THREE VALUE OUTPUT

JP TWO VALUE OUTPUT (earlier scheme)

RES = low

q

The JP three-value output command allows the track jump operation to be controlled from a single pin.

• Track check mode

MSB

LSB

11110000

11111000

11111111

Command

TRACK CHECK IN

TRACK CHECK OUT

TWO BYTE COMMAND RESET

RES = low

q

The LC78622E will count the specified number of tracks minus one when the microprocessor sends an arbitrary

binary value in the range 8 to 254 after issuing either a track check in or a track check out command.

No. 5480-16/29

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