On Thu, Jan 26, 2006 at 12:38:44PM +1000, Torgeir Veimo wrote: > On Thu, 2006-01-26 at 00:55 +0200, Marko M?kel? wrote: > > Apparently, the bundled IR receiver module does not work with 3.3 volt > > supply. So, the Hauppauge guys chose to drop the 5 volts from the PCI > > bus by R47 (49.9 ohms) to something like 4.1 volts, so that the cheap > > IR receiver will still work and not kill the I/O pin on the cx23882. > > > > Next step for me is to get a 3.3 volt capable IR receiver and connect > > my hardware to the 3.3Vaux and PME# lines on the PCI bus. > > Do you know any drop-in replacement modules? I've always though the > bundled one had too low sensitivity as well. I'm planning to get a Vishay TSOP31236 (http://www.vishay.com/ir-receiver-modules/), which has a wide supply voltage range of 2.7 to 5.5 volts. I'm planning to solder a cord directly on its pins and to apply heat shrink tube, so that I can avoid building a case. I'm not sure if the modulation frequency is 36 kHz, but most web pages on the RC5 seem to agree on it. Marko
