rpw3@rigden.wpd.sgi.com (Rob Warnock) (01/08/91)
In article <1991Jan6.213544.5386@techbook.com> tedpan@techbook.com (Teddy Panarto) writes: +--------------- | I've been looking for a DTMF decoder chip, NOT the chips that generate | DTMF tone, but the ones that decode the tones to binary (for example) output. | One that I know of is M-956, made by Teltone, but I have no luck on finding | the company. Signetics also makes them, I believe. I live in Portland, | Oregon, so if anyone can help me on where to find such chips, I'd be very | grateful. It really doesn't matter what company makes the chips, as long as | it's a DTMF decoder with (preferrably) binary output. +--------------- Believe it or not, try your local Radio-Shack. They stock the Silicon Systems SSI-102 (?) which is exactly what you're asking for. (I could be off a bit on the part number.) -Rob ----- Rob Warnock, MS-9U/515 rpw3@sgi.com rpw3@pei.com Silicon Graphics, Inc. (415)335-1673 Protocol Engines, Inc. 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311
paul@Data-IO.COM (Paul Brownlow) (01/09/91)
In article <1991Jan6.213544.5386@techbook.com> tedpan@techbook.com (Teddy Panarto) writes: +--------------- | I've been looking for a DTMF decoder chip, NOT the chips that generate | DTMF tone, but the ones that decode the tones to binary (for example) output. | One that I know of is M-956, made by Teltone, but I have no luck on finding | the company. +--------------- Teltone is headquartered in the Seattle area: Teltone Corporation 10801 - 120th Av NE Kirkland, WA 90834 (206) 827-9626 -- Paul Brownlow | "Saddam Hussein is a liar" -G. Bush Data I/O Corp. Redmond, WA | "George Bush is a liar" -S. Hussein paul@data-io.com | "You're a liar!" - Johnny Rotten | "Liar, liar, pants on fire" - kids
tad@ssc.UUCP (Tad Cook) (01/10/91)
In article <1991Jan6.213544.5386@techbook.com>, tedpan@techbook.com (Teddy Panarto) writes: > I've been looking for a DTMF decoder chip, NOT the chips that generate > DTMF tone, but the ones that decode the tones to binary (for example) output. > One that I know of is M-956, made by Teltone, but I have no luck on finding > the company. Signetics also makes them, I believe. Teltone makes some very nice touchtone decoder chips. Their address: Teltone Corp. 10801 120th Ave. NE Kirkland, WA 98033-5094 phone: 206-827-9626 Tad Cook Seattle, WA Packet: KT7H @ N7HFZ.WA.USA.NA Phone: 206/527-4089 MCI Mail: 3288544 Telex: 6503288544 MCI UW USENET:...uw-beaver!sumax!amc-gw!ssc!tad or, tad@ssc.UUCP
tad@ssc.UUCP (Tad Cook) (01/10/91)
In article <80276@sgi.sgi.com>, rpw3@rigden.wpd.sgi.com (Rob Warnock) writes: > In article <1991Jan6.213544.5386@techbook.com> tedpan@techbook.com > (Teddy Panarto) writes: > +--------------- > | I've been looking for a DTMF decoder chip, NOT the chips that generate > | DTMF tone, but the ones that decode the tones to binary (for example) output. > | One that I know of is M-956, made by Teltone, but I have no luck on finding > | the company. Signetics also makes them, I believe. I live in Portland, > | Oregon, so if anyone can help me on where to find such chips, I'd be very > | grateful. It really doesn't matter what company makes the chips, as long as > | it's a DTMF decoder with (preferrably) binary output. > +--------------- > > Believe it or not, try your local Radio-Shack. They stock the Silicon Systems > SSI-102 (?) which is exactly what you're asking for. (I could be off a bit on > the part number.) > Radio Shack no longer carries the SSI touchtone decoder chips. SSI is still in business though: Silicon Systems 14351 Mylford Road Tustin, CA 92680 phone: 714-731-7110 Tad Cook Seattle, WA Packet: KT7H @ N7HFZ.WA.USA.NA Phone: 206/527-4089 MCI Mail: 3288544 Telex: 6503288544 MCI UW USENET:...uw-beaver!sumax!amc-gw!ssc!tad or, tad@ssc.UUCP
marshall@col.hp.com (Marshall Boss) (01/10/91)
Try a Motorola MC145436. It's listed in their Telecommunications Device Data book on page 2-540. The part is a 14 pin dip. It requires an external colorburst crystal and a 1meg resistor. All you do is pump your signal in one pin and you get a 4-bit binary code and a data valid signal. Dead easy ... Can't go wrong. Marshall Boss
gd@erg.sri.com (Greg DesBrisay) (01/10/91)
Teltone is located in Kirkland, Washington. Their address and telephone numbers are: Teltone Corporation 10801-120th Avenue NE Kirkland, WA 98033 Phone: 800-426-3926 or 206-827-9626 Fax: 206-827-6050 TWX: 910-449-2862 Greg
gd@erg.sri.com (Greg DesBrisay) (01/10/91)
Here's a list that I compiled a couple of months ago of companies that make DTMF receivers. Teltone in Kirkland, WA (800-426-3926, 206-827-6050 (fax)) makes their 8870 DTMF receiver (18-pin DIP, single 5V supply, aprox. $5.75 ea. in single quantities) Sierra Semiconductor in San Jose, CA makes DTMF receivers (SC11202/SC11203/SC11204 and SC11270/SC11271), and transceivers (SC11280, SC11289, and SC11290). Most of these require only a single 5V supply. The complete circuit for the SC11280 transceiver requires only a few external resistors and capacitors and an external crystal, and it can interface directly to a microprocessor. Silicon Systems in Tustin, CA also makes several DTMF receivers and transceivers that all operate on a single 5V supply as well. Greg DesBrisay
vail@tegra.COM (Johnathan Vail) (01/16/91)
In article <80276@sgi.sgi.com> rpw3@rigden.wpd.sgi.com (Rob Warnock) writes: In article <1991Jan6.213544.5386@techbook.com> tedpan@techbook.com (Teddy Panarto) writes: +--------------- | I've been looking for a DTMF decoder chip, NOT the chips that generate | DTMF tone, but the ones that decode the tones to binary (for example) output. | One that I know of is M-956, made by Teltone, but I have no luck on finding | the company. Signetics also makes them, I believe. I live in Portland, | Oregon, so if anyone can help me on where to find such chips, I'd be very | grateful. It really doesn't matter what company makes the chips, as long as | it's a DTMF decoder with (preferrably) binary output. +--------------- Believe it or not, try your local Radio-Shack. They stock the Silicon Systems SSI-102 (?) which is exactly what you're asking for. (I could be off a bit on the part number.) These are pretty good chips. I have had some experience with them. One suggestion is to get the ap-notes from SSI and add their pre-filter. That allows it to pick tones "out of the mud" or so I am told. Hope this helps, jv "A screaming comes across the sky" _____ | | Johnathan Vail | n1dxg@tegra.com |Tegra| (508) 663-7435 | N1DXG@448.625-(WorldNet) ----- jv@n1dxg.ampr.org {...sun!sunne ..uunet}!tegra!vail
tad@ssc.UUCP (Tad Cook) (01/19/91)
In article <1930@atlas.tegra.COM>, vail@tegra.COM (Johnathan Vail) writes: > In article <80276@sgi.sgi.com> rpw3@rigden.wpd.sgi.com (Rob Warnock) writes: > > In article <1991Jan6.213544.5386@techbook.com> tedpan@techbook.com > (Teddy Panarto) writes: > +--------------- > | I've been looking for a DTMF decoder chip, NOT the chips that generate > | DTMF tone, but the ones that decode the tones to binary (for example) output. > > Believe it or not, try your local Radio-Shack. They stock the Silicon Systems > SSI-102 (?) which is exactly what you're asking for. (I could be off a bit on > the part number.) > Radio Shack no longer stocks the SSI DTMF chips. Here is SSI's address: Silicon Systems 14351 Myford Road Tustin, CA 92680 phone: 714-731-7110 Teltone also makes DTMF decoders. Their phone number is 206-827-9626. Tad Cook Seattle, WA Packet: KT7H @ N7HFZ.WA.USA.NA Phone: 206/527-4089 MCI Mail: 3288544 Telex: 6503288544 MCI UW USENET:...uw-beaver!sumax!amc-gw!ssc!tad or, tad@ssc.UUCP