CXD2500BQ

CXD2500BQ CD Digital Signal Processor Description The CXD2500BQ is a digital signal processing LSI designed for use in compact disc players. It has the following functions: Wide-frame jitter margin (±28 frames) realized by a built-in 32K RAM. Bit clock generated by digital PLL for strobing EFM signals. Capture range of ±150 kHz and over. EFM data demodulation Enhanced protection of EFM Frame Sync signals Powerful error correction based on Refined Super Strategy Error correction C1: Double correction C2: Quadruple correction Double-speed playback and vari-pitch playback Reduced noise generation at track jump Auto zero-cross muting Subcode demodulation and subcode Q data error detection Digital spindle servo system (incorporating an oversampling filter) 16-bit traverse counter Built-in asymmetry correction circuit CPU interface using a serial bus Servo auto sequencer Output for digital audio interface Built-in digital level meter and peak meter Bilingual Features All digital signals for regeneration are processed using one chip. The built-in RAM enables high-integration mounting. Structure Silicon-gate CMOS IC 80 pin QFP (Plastic) Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume ...