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Multi-Standard Audio Decoder Family

The CS493XX is a family of multi-channel audio decoders that continue leadership in audio decoding for the DVD, broadcast, and receiver markets. The family offers parts tailored for each of these distinct market segments.

For DVD, parts are offered to support Meridian Lossless Packing (MLP), Dolby Digital, Dolby Pro-Logic II, MPEG Multichannel, DTS Digital Surround, DTS-ES, and AAC. For receivers, parts are offered to support Dolby Digital, Dolby Pro Logic II, MPEG Multichannel, DTS Digital Surround, DTS-ES, AAC, and various virtualizers and PCM enhancement algorithms such as HDCD™, DTS Neo:6™, Logic 7™, and SRS CircleSurround I/II™. For the broadcast market, parts are offered to support Dolby Digital, AAC, MPEG-1, Layers 1,2 and 3, MPEG-2, Layers 2 and 3.

In addition to this decoder family, Cirrus Logic also provides DSP firmware and high-resolution data converters.

Product Features
  • CS4930X: DVD audio sub-family
    • DVD audio pack layer & PES layer decode for A/V sync
    • Meridian Lossless Packing specification™ (MLP)
    • Dolby Digital, Dolby Pro-Logic II™
    • MPEG-2, (AAC), MPEG Multichannel™
    • DTS Digital Surround™, DTS-ES Extended Surround™
  • CS4931X: Broadcast sub-family
    • PES layer decode for A/V sync, Dolby Digital, & AAC
    • MPEG-1™ (1-3) stereo, MPEG-2 (2, 3) stereo, MPEG-2
  • CS4932X: AVR sub-family
    • Dolby Digital, Dolby Pro-Logic II
    • DTS & DTS-ES decoding with integrated DTS tables
    • Surround Sound(COS)
    • MPEG-2, AAC, MPEG Multi-channel, and MP3 (MPEG-1, Layer 3)
  • CS49330: general purpose audio DSP
    • THX Surround EX™, THX Ultra2™ Cinema
    • General purpose AVR, broadcast, and car audio
  • Features are a super-set of the CS4923-9
    • 8-channel output, including dual zone output capability
    • Dynamic channel remapping
    • Supports up to 192 kHz @ 24-bit throughputs
    • SRAM interface for increased delay and buffer capability
    • Dual-precision bass manager
    • Enhanced system functionality via firmware upgrades
  • Package: 44-pin PLCC

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