FX633 Datasheet, PDF (5/12 Pages) List of Unclassifed Manufacturers – Call Progress Tone Detector

Call Progress Tone Detector
1.4 External Components
FX633
Typical Values:
R1
1MΩ ± 10%
C1
33pF ± 20%
C2
33pF ± 20%
C3
1nF ± 20% at 5V, 560pF ± 20% at 3.3V.
C4
0.1µF ± 20%
X1
3.579545MHz (refer to Section 1.7.1)
Figure 2 Recommended External Components
© 1996 Consumer Microcircuits Limited
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