CXD250OBQ Digital Signal Processing LSI Integrated Circuit

Published:2011/7/9 22:43:00 Author:Robert | Keyword: Digital, Signal, Processing, LSI, Integrated | From:SeekIC

The CXD250OBQ is a digital signal processing LSI IC produced by the Sonu company which is widely used in many brands of VCD players, such as the Changhong series VCD players. 1.Its functional features. The CXD250OBQ IC's internal circuit has the following features: Internal 32kB buffer RAM with wide jitter capacity limit (±28 frames). Digital method PLL generating bit clock with capture range more than ±150KHz. EFM data demodulation: by using RSS method to improve the error-correction ability. Which means C1 is doube error correction and C2 is four-times error correction. Speeding playing and variable speed long-time playing; noise reduction processing when the track skips; automatic zero-cross squelch processing. Sub-code decoding and Q sub-code error detection: digital method spindle motor servo system: 16-bit bidirectional counter. And so on.



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