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’’ crystal (for frequency

5V Low Power DTMF Receiver

Description\nThe 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’’ crystal (for frequency refe • Central Office Quality\n• No Front End Band Splitting Filters Required\n• Single, Low Tolerance, 5V Supply\n• Detects Either 12 or 16 Standard DTMF Digits\n• Uses Inexpensive 3.579545MHz Crystal for Reference\n• Excellent Speech Immunity\n• Output in Either 4-Bit Hexadecimal Code or Binary\nCoded ;

5V Low Power DTMF Receiver

文件：117.57 Kbytes Page：6 Pages

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’’ crystal (for frequency

5V Low Power DTMF Receiver

文件：117.57 Kbytes Page：6 Pages

5V Low Power DTMF Receiver

文件：117.57 Kbytes Page：6 Pages