<cut> >> Hm, the data sheet of the FMD2116ME MK3 is - lets say - a problem. >> One issue is the DVB-T IF frequency. I got told it is 36.125MHz but >> this can't be right. The tuner can't tune to this frequency, it should >> be 36.167MHz. Tuning step size definitely is 166.667kHz (4MHz / 24), >> so this is wrong in your patch. Also all examples in the data sheet >> have bit 6 of the bandswitch byte set... >> > > Errors in data sheets seem to be quite common, I only trust > tested code. Steve, if you can check Philips reference code > or Hauppauge Windoze driver code, this would be a more > reliable source for these numbers... > > Thanks. The datasheet dated Sep 8 2005, in a number of places, says the DVB-T IF is 36.13. In fact, various version of the datasheet say the same thing. You're telling me it's just plain wrong? The 166.7 figure comes from the control bite matrix. I guess can be accounted for by a rounding issue in the sheet. Fair enough. Bit 6, (P6) is not mentioned anywhere in the datasheet other than using the Philips example tool. I chose not to set the bit because it wasn't documented. Tuning clearly works with or without it. Any comments on the upp/lower freqs of the bands? >> There generally is a problem with dvb-pll.c: I miss functions to >> initialize and to "deinitialize" the tuner. This is very important for >> hybrid analog and digital cards. That's why i have my own versions in >> saa7134-dvb.c - including FMD1216. This should be changed some time. >> > > Would should the "initialize" and "deinitialize" functions do? > I thought the PLL is used by both the analog and digital > demodulators, so all you do with the PLL when switching > between analog and digital is writing the new config > via i2c? > > Johannes > >
