MX643 데이터 시트보기 (PDF) - CML Microsystems Plc
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MX643 Datasheet PDF : 12 Pages
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Call Progress Tone Detector
SIGIN
tI
No Signal
10
tL
tNG
Non Call
Progress Signal
MX643 - Preliminary Information
Non Call
Progress Signal
ENABLE
DETECT1
0 Level
tNRP
tNDRP
DETECT2
DETECT3
Note: DETECT3 is logic high only when the Call Progress Signal, or the Non Call Progress Signal is a single frequency tone.
Figure 4: Timing Diagram: Non Call Progress Signal
SIGIN
No Signal
Call Progress
Low Band
Non Call
Progress Signal
Call Progress
Low Band
ENABLE
tRP
tNRP
tRP
DETECT1
tDRP
DETECT2
tCH
DETECT3
Note: DETECT3 logic high only when the Call Progress signal, or the Non Call Progress signal is a single frequency tone.
Figure 5: Timing Diagram: Call Progress Tone(s) to Non Call Progress Signal
SIGIN
ENABLE
DETECT1
DETECT2
DETECT3
tI
No Signal
0 Level
0 Level
tL
Special
Information
Tone
tGD
tGI
Special
Information
Tone
Special
Information
Tone
tRP
Special
Information
Tone
tRP
tDRP tRP
tDRP
tGDR
Figure 6: Timing Diagram: Special Information Tones
© 1996 MX•COM, INC.
Tele: 800 638 5577, 910 744 5050, Fax: 910 744 5054
Doc. #20480148.001
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