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> M-980 general purpose call progress tone detector qty 5
M-980 general purpose call progress tone detector qty 5
M-980 General Purpose Call Progress Tone Detector by Teltone
DESCRIPTION: The Teltone M-980 is an integrated circuit tone detector for general purpose use in automatic following of switched telephone calls. The circuit uses low-power CMOS techniques to provide the complete filtering and control required for this function. The basic timing of the M-980 is designed to permit operation with almost any progress tone system.
The use of integrated circuit techniques allows the M-980 to pack the complete frequency and amplitude portion of call progress following into a single 8-pin DIP. A 3.58 MHz crystal-controlled time base guarantees accuracy and repeatability.
* Covers the 315 to 640 Hz range (common call progress)
* 40 ms minimum detect (50 ms to output)
* Single supply CMOS (low power)
* Supply range 4.5 to 5.5 VDC
* Inexpensive 3.58-MHz time base
* Traffic measurement equipment
Pricing is for a LOT of 5 parts.
