mckillnm@unix1.tcd.ie (Bubble Boy) (03/04/91)
Does any one know of a source book with information on the 8870
filter/decoder chip ???
Mark.
PS :also looking for info on the 7910 Modem chip !!jon_sree@world.std.com (Jon Sreekanth) (03/05/91)
In article <mckillnm.668083980@unix1.tcd.ie> mckillnm@unix1.tcd.ie (Bubble Boy) writes:
Does any one know of a source book with information on the 8870
filter/decoder chip ???
The 8870 is a Touch Tone (tm) decoder chip, made by Mitel,
Teltone, SSI, and others. It is not a DTMF transciever (that is, it only
receives and decodes DTMF, not generate them). The 8880 is a
DTMF transciever.
Teltone is at 800-426-3926 or 206-827-9626. If you have difficulty
getting through, I can send you a photocopy of the spec sheet
Regards,
/ Jon Sreekanth
Assabet Valley Microsystems Fax and PC products
346 Lincoln St #722, Marlboro, MA 01752 508-562-0722
jon_sree@world.std.com