CD22203

CD22203 is 5V Low Power DTMF Receiver manufactured by Intersil.

CD22203 Datasheet

Part number	CD22203
Download	CD22203 Datasheet (PDF)
File Size	49.63 KB
Manufacturer	Intersil
Description	5V Low Power DTMF Receiver

Related Intersil Datasheets

Part Number	Description
CD22202	5V Low Power DTMF Receiver
CD22204	5V Low Power Subscriber DTMF Receiver
CD22100	CMOS 4 x 4 Crosspoint Switch with Control Memory High-Voltage Type (20V Rating)
CD22101	CMOS 4 x 4 x 2 Crosspoint Switch with Control Memory
CD22102	CMOS 4 x 4 x 2 Crosspoint Switch with Control Memory

CD22203 Distributor

CD22203 Description

The CD22202 and CD22203 plete 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 ponents are an inexpensive 3.579545MHz TV “colorburst’’ crystal (for frequency reference) and a bias resistor.

CD22203 Key Features

Central Ofﬁce Quality
No Front End Band Splitting Filters Required
Single, Low Tolerance, 5V Supply
Detects Either 12 or 16 Standard DTMF Digits
Uses Inexpensive 3.579545MHz Crystal for Reference
Excellent Speech Immunity
Output in Either 4-Bit Hexadecimal Code or Binary Coded 2-of-8
Synchronous or Handshake Interface
Three-State Outputs
Excellent Latch-Up Immunity

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