Conexant CX2584x: Difference between revisions

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(A/V) decoders built on the success of the [[Conexant_CX2388x|CX23880]] family ...". Typically used in combination with other PCI bridge/MPEG encoder chip like [[Conexant CX2341x|CX23415/6/8]].
(A/V) decoders built on the success of the [[Conexant_CX2388x|CX23880]] family ...". Typically used in combination with other PCI bridge/MPEG encoder chip like [[Conexant CX2341x|CX23415/6/8]].


CX2584x chips are fully supported by Linux kernel by the cx25840 driver.
CX2584x chips are fully supported by Linux kernel using the cx25840 driver.


==Overview/Features==
==Overview/Features==
====Analog video inputs====
All chips of CX2584x family have the same video decoding capabilities.
All chips of CX2584x family have the same video decoding capabilities.
* Autodetection and decoding of NTSC (M, J, 4.43), PAL (B, D, G, H, I, M, N, Nc), SECAM (K, L), PAL-60
* Autodetection and decoding of NTSC (M, J, 4.43), PAL (B, D, G, H, I, M, N, Nc), SECAM (K, L), PAL-60
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* VBI data slicing and decoding
* VBI data slicing and decoding


====Analog audio inputs====

Audio decoding capabilities are following:
Audio decoding capabilities are following:
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== External Links ==
== External Links ==
* [http://www.conexant.com/products/entry.jsp?id=78 Conexant Product Page]

[http://www.conexant.com/products/entry.jsp?id=78 Conexant Product Page]


[[Category:Decoder]]
[[Category:Decoder]]

Latest revision as of 18:59, 27 September 2009

CX25840/1/2/3 is a broadcast audio/video decoder family of ICs from Conexant. According to Conexant, its a "... second generation of Audio/Video (A/V) decoders built on the success of the CX23880 family ...". Typically used in combination with other PCI bridge/MPEG encoder chip like CX23415/6/8.

CX2584x chips are fully supported by Linux kernel using the cx25840 driver.

Overview/Features

Analog video inputs

All chips of CX2584x family have the same video decoding capabilities.

  • Autodetection and decoding of NTSC (M, J, 4.43), PAL (B, D, G, H, I, M, N, Nc), SECAM (K, L), PAL-60
  • Five-line adaptive comb filter for NTSC and PAL.
  • Two 10 bit ADCs
  • Eight composite inputs
  • Four Y/C inputs
  • VBI data slicing and decoding

Analog audio inputs

Audio decoding capabilities are following:

Capability CX25840 CX25841 CX25842 CX25843
A2, NICAM, AM, FM No No Yes Yes
BTSC, EIA-J Yes Yes No Yes
BTSC with DBX No Yes No Yes

External Links