CXD2589Q View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

Manufacturer

CXD2589Q

CD Digital Signal Processor

Sony Semiconductor 

CXD2589Q

Command bit

Mute = 1

Mute = 0

Processing

CD-DSP block mute is on. 0 data is output from the CD-DSP block.

CD-DSP block mute is off.

Command bit

ATT = 1

ATT = 0

Processing

CD-DSP block output is attenuated (–12dB).

CD-DSP block attenuation is off.

Command bit

OPSL2 = 1

OPSL2 = 0

Meaning

FMUT, LRWO, BSBST and BBSL can be set.

FMUT, LRWO, BSBST and BBSL cannot be set.

Command bit

Processing

EMPH = 1

De-emphasis is on.

EMPH = 0

De-emphasis is off.

∗ If either the EMPHI pin or EMPH is high, de-emphasis is on.

Command bit

SMUT = 1

Soft mute is on.

SMUT = 0

Soft mute is off.

∗ If either the SMUT pin or SMUT is high, soft mute is on.

Processing

Command bit

AD9 to 0

Attenuation data.

Meaning

The attenuation data consists of 10 bits, and is set as follows.

Attenuation data

3FFh

3FEh

3FDh

:

001h

000h

Audio output

0dB

–0.0085dB

–0.017dB

–60.198dB

–∞

The attenuation data (AD9 to AD0) consists of 10bits, and

can be set in 1023 different ways.

The audio output from 001h to 3FFh is obtained using the

following equation.

Audio output = 20 log

Attenuation data

1024

[dB]

– 21 –

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