LC78631 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

LC78631

Compact Disk Player DSP

SANYO -> Panasonic 

LC78631E

Note: 1. Normally, the WRQ pin indicates the subcode Q standby state. However, it is used for a different monitoring purpose in track check mode

and during internal braking. (See the items on track checking and internal braking for details.)

2. The LC78631E becomes active when the CS pin is low, and subcode Q data is output from the SQOUT pin. When the CS pin is high, the

SQOUT pin goes to the high-impedance state.

Code

$4B

$4A

Command

ATIME PRIORITY ON

ATIME PRIORITY OFF

RES = low

q

The ATIME priority command allows the SQOUT output to read from ATIME. In this mode, data is output in a ring

sequence in the order: AMIN, ASEC, AFRAME, CONT, ADR, etc.

11. Mute control circuit

Code

$01

$03

Command

MUTE 0 dB

MUTE –∞ dB

RES = low

q

Muting of –∞ dB can be applied by issuing the command shown above. The adoption of a zero-cross muting

algorithm means that noise is minimal. A zero crossing is recognized when the sign bit of the code changes state.

No. 5342-20/34

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