[linux-dvb] [PATCH] Add pll information for some NXT2002 and NXT2004 based cards

CityK CityK at rogers.com
Thu Nov 3 02:23:06 CET 2005


CityK wrote:

> could you, or anyone else for that matter, ID the (Philips?) tuner and 
> analog demodulator ICs used in the TUV1236D.  Thanks.
>
> Kirk Lapray wrote:
>
>> The tuner and NXT2004 demodulator chip are integrated into the 
>> TUV1236D Network Interface Module.  I don't think there is a specific 
>> Philips tuner used.  From what I understand the NXT2004 also 
>> demodulates the analog signal.  
>
>
> No, I'm pretty sure the Nxt2004 is incapable of analog demodulation. 
> You'll notice its absence from the spec overview:
> http://www.ati.com/products/nxt2004/features.html
>
> As for the tuner and analog ICs, you can see what I believe to be them 
> in the following photo: 
> http://www.anandtech.com/showdoc.aspx?i=2089&p=3 . Click on the photo 
> for a close up (Warning very big picture!).  In the close up photo, 
> you can make out some of the model number on the topmost chip (tuner?) 
> but the middle IC gets washed out.  I can, however, distinctly observe 
> the shadow of the Philips shield emblem on this middle IC.  I believe 
> this is the analog demodulator.
>
> Lastly, I think that 
> http://www.ati.com/companyinfo/press/2003/4596.html offers further 
> proof.  Examples:
> - "State of the art digital and analog cable reception is realized by 
> the combination of Philips RF technology and ATI's NXT2004"
> - "The TUV1236 contains the same ATI technology and adds a NTSC 
> demodulator"
> - "All modules incorporate Philips' proprietary RF AGC (automatic gain 
> control) detector to ensure excellent performance, even in large 
> signal conditions where most tuners suffer from overload"
>

I'm a monkey.  I was so convinced that it must be Philips ICs that I 
didn't even consider any other manufacturer.  Anyways, on closer 
inspection of that Anandtech photo, the tuner is, quite clearly, none 
other then the Infineon Taifun TUA6034T (A1)  ....  this is the same 
tuner (mabye not same revision) as that used in the LG  Innotek 
TDVS-H062F NIM  (i.e. that for the Fusion 5s and the AirStar).

One down, one to go.  At least the analog demodulator certainly looks 
like its a Philips.




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