CXD2529Q View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

Manufacturer

CXD2529Q

CD Digital Signal Processor

Sony Semiconductor 

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 SYSM pin or SMUT is high, soft mute is on.

Processing

Command bit

AD9 to 0

Attenuation data

Meaning

CXD2529Q

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

–∞

1023 settings are available because the attenuation data

(AD9 to AD0) consists of 10 bits.

The audio output for 001h to 3FFh can be obtained by

the following equation.

attenuation data

Audio output = 20 log

1024

[dB]

– 22 –

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