https://www.analog.com/en/resources/app-notes/using-the-73m2901ce-dtmf-detector.html
Using the 73M2901CE DTMF Detector | Analog Devices
Teridian 73M2901CE single-chip V.22bis modem has dual tone multiple frequency (DTMF) detection function. The DTMF detector uses Goertzel filters to detect...
usingdtmfdetectoranalogdevices
https://www.analog.com/en/resources/app-notes/manufacturing-with-the-73m2901ce-v22bis-single-chip-modem.html
Manufacturing with the 73M2901CE V.22bis Single Chip Modem | Analog Devices
Teridian's 73M2901CE V.22bis single-chip modem helps to validate the manufacturing process and insure quality of the completed device. covers the...
manufacturingv
https://ez.analog.com/adiacademy/university-program/f/q-a/593854/73m2901ce
73M2901CE - Q&A - Virtual Classroom for ADI University Program - EngineerZone
I am looking to use these make a product for data transfer over POT lines, given the current status of this IC should i use these as its recomended to not use...
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