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SC9270 - DTMF DEMODULATOR WITH FILTER AND DIGITAL DECODER

General Description

The SC9270C/D is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions.

The filter section uses switched capacitor techniques for high- and low-group filters and dialtone rejection.

Key Features

  • DIP-18-300-2.54.
  • Excellent performance.
  • CMOS, single 5 volt operation,.
  • Widely operating voltage: 1.2V ~ 5.25V.
  • Minimum board area.
  • Central office quality.
  • Low power consumption.
  • Power-Down mode (SC9270D only).
  • Inhibit-mode (SC9270D only).

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Datasheet Details

Part number SC9270
Manufacturer Silan Semiconductors
File Size 234.26 KB
Description DTMF DEMODULATOR WITH FILTER AND DIGITAL DECODER
Datasheet download datasheet SC9270 Datasheet

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Other Datasheets by Silan Semiconductors

Part Number Description
SC9270C DTMF DEMODULATOR WITH FILTER AND DIGITAL DECODER
SC9270D DTMF DEMODULATOR WITH FILTER AND DIGITAL DECODER
SC9200 DTMF GENERATORS
SC9200A DTMF GENERATORS
SC9200B DTMF GENERATORS

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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SC9270 DTMF DEMODULATOR WITH FILTER AND DIGITAL DECODER DESCRIPTION The SC9270C/D is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions. The filter section uses switched capacitor techniques for high- and low-group filters and dialtone rejection. Digital counting techniques are employed in the decoder to detect and decode all 16 DTMF tone-pairs into a 4-bit code. External component count is minimized by on-chip provision of a differential input amplifier, clock-oscillator and latched 3-state bus interface. SOP-20-375-1.27 FEATURES DIP-18-300-2.54 * Excellent performance * CMOS, single 5 volt operation, * Widely operating voltage: 1.2V ~ 5.