LC7861KE 查看數據表（PDF） - SANYO -> Panasonic

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LC7861KE

Digital Signal Processor for Compact Disc Players

SANYO -> Panasonic 

LC7861KE

Note: 1. Normally, the WRQ pin indicates the subcode Q standby state. However, it is used for a different

monitoring purpose in track count mode. (See the item on track counting for details.)

2. The LC7861KE becomes active when the CS pin is low, and data is output from the SQOUT pin. When

the CS pin is high, the SQOUT pin goes to the high impedance state.

3. The “OSC OFF” command turns off the VCO and the crystal oscillator.

8. Servo command function; Pin 51: RWC, pin 53:COIN, pin 54: CQCK, pin 62: CS

Instructions can be input to the LC7861KE by setting RWC high and sending commands in synchronization with the

CQCK. The LC7861KE is basically upwardly compatible with the earlier LC7860K and LC7863K with respect to

the control microprocessor. The commands can be classified as follows. New commands not supported by the earlier

LC7860K and LC7863K are marked with a “ o ” in the command table.

Focus start

Track jump

Mute control

Disc motor control

Other control commands

1-byte commands

Track count

2-byte command

• One-byte commands

• Two-byte commands

Commands are executed starting at the fall of the RWC signal.

No. 4818-9/18

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