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CXD2597Q

Sony Corporation
Part Number CXD2597Q
Manufacturer Sony Corporation
Description CD Digital Signal Processor with Built-in Digital Servo and DAC
Published Mar 27, 2005
Detailed Description CXD2597Q CD Digital Signal Processor with Built-in Digital Servo and DAC For the availability of this product, please co...
Datasheet PDF File CXD2597Q PDF File

CXD2597Q
CXD2597Q

Overview
CXD2597Q CD Digital Signal Processor with Built-in Digital Servo and DAC For the availability of this product, please contact the sales office.
Description The CXD2597Q is a digital signal processor LSI for CD players.
This LSI incorporates a digital servo, digital filter, zero detection circuit, 1-bit DAC and analog low-pass filter on a single chip.
Features Digital Signal Processor (DSP) Block • Playback mode supporting CAV (Constant Angular Velocity) • Frame jitter free • 0.
5× to 4× continuous playback possible • Allows relative rotational velocity readout • Wide capture range playback mode • Spindle rotational velocity following method • Supports normal-speed to 4× speed playback • 16K RAM • EFM data demodulation • Enhanced EFM frame sync signal protection • SEC strategy-based error correction • Subcode demodulation and Sub Q data error detection • Digital spindle servo • 16-bit traverse counter • Asymmetry correction circuit • CPU interface on serial bus • Error correction monitor signal, etc.
output from a new CPU interface • Servo auto sequencer • Digital audio interface outputs • Digital level meter, peak meter • CD TEXT data demodulation Digital Servo (DSSP) Block • Microcomputer software-based flexible servo control • Offset cancel function for servo error signal • Auto gain control function for servo loop • E:F balance, focus bias adjustment functions Digital Filter, DAC and Analog Low-Pass Filter Blocks • DBB (digital bass boost) function • Double-speed playback supported • Digital de-emphasis • Digital attenuation • Zero detection function • 8Fs oversampling digital filter • S/N: 100dB or more (master clock: 384Fs, typ.
) Logical value: 109dB • THD + N: 0.
007% or less (master clock: 384Fs, typ.
) • Rejection band attenuation: –60dB or less 80 pin QFP (Plastic) Applications CD players Structure Silicon gate CMOS IC Absolute Maximum Ratings –0.
3 to +7.
0 V • Supply voltage VDD • Input voltage VI –0.
3 to +7.
0 V (VSS – 0.
3V to VDD + 0.
3) • Output voltage VO –...


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