Telephone Tone Generator Requires No Trimming

Reference Design using part MAX293 by Analog Devices

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Manufacturer

Analog Devices
  • Application Category
    Wired Communication
  • Product Type
    Ring Generator

For End Products

  • Modems

Description

  • In this tone generator, the uncommitted OP-Amp of the MAX293 lowpass filter acts as a summing amplifier. The amplifier's gain level assures that 5V-logic inputs will not cause clipping at the two-tone output

Featured Parts (11)

Featured Parts
Part Number Manufacturer Type Description
MAX293EWE+ Analog Devices Active Filters Active Filter Single SW-CAP Low Pass 8th Order 25kHz 16-Pin SOIC W Tube Buy
MAX293CSA+ Analog Devices Active Filters Active Filter Single SW-CAP Low Pass 8th Order 25kHz 8-Pin SOIC N Tube Buy
MAX293CSA+T Analog Devices Active Filters Active Filter Single SW-CAP Low Pass 8th Order 25kHz 8-Pin SOIC N T/R Buy
MAX293ESA+T Analog Devices Active Filters Active Filter Single SW-CAP Low Pass 8th Order 25kHz 8-Pin SOIC N T/R Buy
MAX293ESA+ Analog Devices Active Filters Active Filter Single SW-CAP Low Pass 8th Order 25kHz 8-Pin SOIC N Tube Buy
MAX293CWE+T Analog Devices Active Filters Active Filter Single SW-CAP Low Pass 8th Order 25kHz 16-Pin SOIC W T/R Buy
MAX293EWE+T Analog Devices Active Filters Active Filter Single SW-CAP Low Pass 8th Order 25kHz 16-Pin SOIC W T/R Buy
MAX293CPA+ Analog Devices Active Filters Active Filter Single SW-CAP Low Pass 8th Order 25kHz 8-Pin PDIP N Tube Buy
MAX293CWE+ Analog Devices Active Filters Active Filter Single SW-CAP Low Pass 8th Order 25kHz 16-Pin SOIC W Tube Buy
MAX293EPA+ Analog Devices Active Filters Active Filter Single SW-CAP Low Pass 8th Order 25kHz 8-Pin PDIP N Tube Buy
MAX293CPA+ Analog Devices Active Filters Active Filter Single SW-CAP Low Pass 8th Order 25kHz 8-Pin PDIP N Tube Buy

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