[linux-dvb] Re: Status of HDTV5 lite?

Michael Krufky mkrufky at linuxtv.org
Wed Oct 5 02:59:51 CEST 2005


CityK wrote:
> Michael Krufky wrote:
> 
>> Luis Ochoa wrote:
>>> list like crazy for the past week or so, when you guys talk about the
>>> frontend, what is it? is it the actual part of the board that does the
>>> "tuning", the big metal box? Sorry for the noobiness here.
>>
>>
>> The big metal box is the TUNER... In your case, it's a LG-H062F ... 
>> Inside that box, there is a tua6034 pll (this does the actual tuning), 
>> tda9887 IF demod, and lgdt3303 atsc demod ... That last item is what 
>> we have been referring to as a "frontend."
> 
> 
> I'm not certain as to the discussion Micheal & Luis are reffering too, 
> but I would define the "frontend" of a card as being the both the tuner 
> and demodulator(s). When the demodulator(s) is/(are) contained within 
> the metal housing surrounding the tuner you will often find this 
> referred to as a NIM (Network Interface Module) or, less frequently, as 
> a ITD (Integrated Tuner Demodulator).    But a frontend need not  have 
> its demodulator(s) contained within the tuner section -- examples of 
> which are the pchdtv cards, which have their Oren demods exposed on the 
> surface of the cards

CityK, thanks for the correction...  LG-H062F is the NIM, tua6034 tuner, 
and lgdt3303 demodulator.

-- 
Michael Krufky



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