Path: utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!fmgst From: fmgst@unix.cis.pitt.edu (Filip Gieszczykiewicz) Newsgroups: sci.electronics Subject: Re: Programmable Multi-Tone generator wanted Keywords: PSG, etc.. Message-ID: <59903@unix.cis.pitt.edu> Date: 13 Nov 90 07:42:50 GMT Reply-To: fmgst@unix.cis.pitt.edu (Filip Gieszczykiewicz) Followup-To: sci.electronics Organization: The Last Jedi Lines: 25 In article <15621@slice.ooc.uva.nl> ropg@ooc.uva.nl (Rop Gonggrijp) writes: For a phone switch I am currently developing I am looking for a chip that: Will generate two sine-wave tones simultaneously Is computer programmable (height of tones, and preferebly amplitude) Works from 100 to 3000 Hz Greetings. Have you considered the AY-3-9128 (I believe). It's a PSG (programable sound generator) with 3 seperate channels. I found it simple to program and the output were well within 100-3000 Hz I think you can get it at Radio Shack (expen$ive) or Jameco or DigiKey... You can find specs in any Radio Shack cross reference paper back. Take care. -- _______________________________________________________________________________ "The Force will be with you, always." It _is_ with me and has been for 10 years Filip Gieszczykiewicz "... a Jedi does it with a mind trick... " ;-) FMGST@PITTVMS or fmgst@unix.cis.pitt.edu "My ideas. ALL MINE!!"