Re: ATSC Tuner in KWorld PC120-U PCI Hybrid ATSC (17de:a134)

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Yes. Typo. It's a PC150-U.

I found the digital decoder. It's a Samsung s5h1411.

Unfortunately no saa7134 card uses s5h1411, so I'm trying to copy come
code from a saa7164 card. But my C coding skills are very very
limited.

I currently trying to play around with these (copied from a saa7164
card!). I don't know if I'm in the right direction or not!

static struct s5h1411_config kworld_s5h1411_config = {
        .output_mode   = S5H1411_SERIAL_OUTPUT,
        .gpio          = S5H1411_GPIO_ON,
        .qam_if        = S5H1411_IF_4000,
        .vsb_if        = S5H1411_IF_3250,
        .inversion     = S5H1411_INVERSION_ON,
        .status_mode   = S5H1411_DEMODLOCKING,
        .mpeg_timing   = S5H1411_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK,
};

Hooman

On Sat, Nov 27, 2010 at 12:14 PM, CityK <cityk@xxxxxxxxxx> wrote:
>> I've been trying to get the ATSC tuner in my KWorld PC120-U PCI Hybrid
>> ATSC (17de:a134)
>
> Are you sure you don't mean the PC120-U Â? -- ÂI can't find such a product.
> Â A PC150-U model, on the other hand....
>
>> > ÂI see the drivers for both TDA18271HDC2 and TDA8290 loaded.
>> > ÂI thought TDA18271HDC2 was the digital channel decoder, isn't it? Is
>> > Âthe "digital channel decoder" different from the digital tuner??
>> > ÂShould be looking for a different chip?
>>
>> they are detected by chip IDs.
>>
>> The tda8290 is the IF demodulator for global analog TV.
>> In case of the saa7135 it is an extra chip on the PCB, which most often
>> can also control the tuner over an i2c gate.
>>
>> The tda18271hdc2 is a global hybrid tuner for analog and digital
>> terrestrial TV. It can also provide a FM radio IF. Further processing
>> and stereo separation for that is done on capable bridges like
>> saa7133/35/31e, not on the tda 8290.
>>
>> Yes, for any terrestrial digital TV you need an extra channel decoder
>> and all known details about it.
>>
>> http://linuxtv.org/wiki/index.php/Category:ATSC_PCI_Cards
>>
>> In case of terrestrial ATSC, it must be able to deal with 8VSB
>> modulation.
>
> From the pics on newegg (
> http://www.newegg.com/Product/Product.aspx?Item=N82E16815260032 ), it
> Âappears that they have used a Samsung demodulator
>
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