Vorlage:Coolstream:Hardware:CPU CX24500

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SoC Conexant/NXP/Trident CX2450x (Nevis)

NXP CX24500 nach dem Entfernen des Kühlkörpers

Das SoC (System on Chip) stammt ursprünglich von Conexant. Nach dem Verkauf der Multimediasparte von Conexant übernahm NXP, eine Tocher von Philips, die Weiterentwicklung und Produktion des Chips. NXP wiederum verkaufte die Entwicklung kurze Zeit später an Trident. Die Herstellung des Chips erfolgt weiterhin bei NXP.

Nachfolgend die Features des SOC etwas ausführlicher:

Video Decoder MPEG-2/H.264/VC-1

  • Capable of decoding an HDTV program in the following formats: MPEG-2 MP@HL, MP@ML. MP@LL, SP@ML, AVC HP@L4.1, VC-1 AP@L3 and MP@HL
  • Supports decoding for picture sizes up to 1920x1080 @ 30fps; supports all ATSC, DIRECTV, DVB and SCTE formats
  • Supports OpenCable HDTV constrained image output on YPrPb
  • Supports Advanced DTV closed captions according to EIA-708-B
  • Supports Analog closed captions per EIA-608
  • Supports MPEG-1 video decoding with up-sampling and filtering of low resolution video modes to full CCIR601 picture size
  • Supports 14:9, 16:9 and 20:9 image aspect ratios through pan/scan or letterboxing
  • Supports 3:2 pull-down of 24fps video sequence
  • Supports video trick modes for PVR applications
  • Automatic error concealment

Audio Decoder

  • Program decoding of MPEG-1, MPEG-2, Dolby Digital, Dolby Digital Plus, MPEG-2 AAC, MPEG-4 AAC, aacPlus and WMA encoded bit-streams
  • Decodes MPEG-1 Layer I and II (MUSICAM) ISO 11172
  • Supports MPEG-1 Layer 3 (MP3) decode
  • Supports Windows Media Audio v.9 and WMA Pro decoding
  • Supports transcoding of Dolby Digital Plus with downmix to 2-channel stereo and Dolby Digital transcode
  • Supports transcoding of aacPlus with down-mix to 2-channel stereo and DTS transcode
  • Stereo down-mix extraction from multi-channel MPEG-2 source
  • Up to 4-bit LPCM 2-channel output in I2S or left justified serial formats
  • Supports sample rates of 16, 22.05, 24, 32, 44.1, 48kHz
  • Stereo 24-bit audio DAC for analog audio output
  • Automatic error concealment
  • A/V synchronization using PTS and STC
  • 2-channel ProLogic encoded Dolby Digital down-mix output via I2S and integrated stereo audio DAC
  • Single program encoded bit-stream output on S/PDIF port

CPU ARM1176EJ-S

  • 736 Dhrystone 1.24 MIPS at 594MHz
  • 32 kB data cache, 32 kB instruction cache
  • Linux/WinCE compatible MMU
  • Java support through ARMs Jazelle technology
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