FX643 Datasheet, PDF (12/14 Pages) CML Microcircuits – Call Progress Tone Detector

Call Progress Tone Detector
1.7.1 Electrical Performance (continued)
FX643
Figure 5 Timing Diagram: Call Progress Tone(s) to Non Call Progress Signal
Note 1:
DETECT3 is "1" only when the Call Progress Signal, or a Non Call Progress Signal, is a single
frequency tone.
Figure 6 Timing Diagram: Special Information Tones
© 1996 Consumer Microcircuits Limited
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D/643/4