Description

The CXD2529Q is a digital signal processor LSI for CD players and is equipped with built-in digital filters, 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

– Allows 0.5 to double-speed continuous playback

– Allows relative rotational velocity readout

– Supports external spindle control

? Wide capture range mode

– Spindle rotational velocity following method

– Supports normal-speed and double-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 compensation circuit

? Serial bus-based CPU interface

? Error correction monitor signals, etc. are output from a new CPU interface.

? Servo auto sequencer

? Digital audio interface output

? Digital peak meter

Digital Filter, DAC, Analog Low-Pass Filter Block

? DBB (Digital Bass Boost)

? Supports double-speed playback

? Digital de-emphasis

? Digital attenuation function

? Zero detection function

? 8fs oversampling digital filter

? S/N ratio: 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 more

Applications

CD players