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CD22203

5V Low Power DTMF Receiver

Description

DTMF Receivers/Generators CD22202, CD22203 January 1997 5V Low Power DTMF Receiver Description The CD22202 and CD22203 complete dual-tone multiple frequency (DTMF) receivers detect a selectable group of 12 or 16 standard digits. No front-end pre-ﬁltering is needed. The only externally required components are an inexpensive 3.579545MHz TV “colorburst’’ crys...

Intersil Corporation

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