M-993 generator equivalent, region 1 mf tone generator.
* Generates standard CCITT R1 MF tones
* Digital input control
* Linear (analog) output
* Power output capable of driving standard line
* 14-pin DIP <.
* Telephone systems
* Test equipment Description The M-993 is a monolithic CMOS integrated circuit designed to g.
The M-993 is a monolithic CMOS integrated circuit designed to generate multifrequency (MF) tone pairs for use in trunk signaling. The tones generated conform to CCITT R1 signal recommendations and to AT&T MF standards. The M-993 permits design engine.
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