I think Phillips and Siemens make similar chips.
Dual PLL's mixers demods and swicthing for
different IF bandwidths. They use I2C for control.

I designed satellite receivers for home use at one time.
I wish these were available at years back.

You should be ab;e to do a web search and [ull up a distributor
or trading company that will sell you a few.

Norman


"PC-Sat provides quality Usenet Newshosting and Newsfeeds for ISP and
Corporations. Interested see www.pc-sat.com"

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Ken Johnson
> Sent: Friday, December 11, 1998 4:09 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: [OT] help needed for a phillips chip
>
>
> Hi, anyone have any ideas where I can get hold of a couple of Philips
> TDA8745A sat. tv sound chips? I tried Philips, they didn't bother to reply
> to my emails and their local agents were no help either. I want
> to add sound
> to a cheap sat tv receiver that originally didn't have sound (it
> was for use
> in a pub for horse-race betting results). I have built a couple of sound
> boards for it, but they have severe limitations- this philips chip is the
> bees knees IF I can get hold of one (or two).
> How is this related to  PIC's I hear you say- well it uses an I2C
> interface
> for which I will use a PIC
> If anyone knows of a similar chip I would be glad to hear from them also.
>
> Cheers, Ken
> vk7krj@southcom.com.au
>