Conexant CX2584x: Difference between revisions
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CX25840/1/2/3 is a broadcast audio/video decoder family of ICs from [[Conexant]]. |
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 |
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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]]. |
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CX2584x chips are fully supported by Linux kernel |
CX2584x chips are fully supported by Linux kernel using the cx25840 driver. |
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==Overview/Features== |
==Overview/Features== |
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====Analog video inputs==== |
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All chips of CX2584x family have the same video decoding capabilities. |
All chips of CX2584x family have the same video decoding capabilities. |
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* 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 |
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====Analog audio inputs==== |
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Audio decoding capabilities are following: |
Audio decoding capabilities are following: |
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== External Links == |
== External Links == |
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[[Category:Decoder]] |
[[Category:Decoder]] |
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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 |