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TCM1512B Texas Instruments Communication ICs - Various Drivers 8-PDIP

2016-7-18
           

The  TCM1501B,  TCM1506B,  TCM1512B,  TCM1531,  TCM1532,  TCM1536,  and  TCM1539  are  monolithicintegrated circuit telephone tone-ringer drivers that, when coupled with an appropriate transducer, replace theelectromechanical  bell.  These  devices  are  designed  using  BIDFETtechnology  for  use  with  either  a  Piezotransducer or an inexpensive transformer-coupled speaker to produce a pleasing tone composed of a highfrequency (fH) alternating with a low frequency (fL) resulting in a warble tone. Each device is powered andactivated by the telephone line ring voltage, which may vary from 40 Vrms to 150 Vrms at frequencies from15.3 Hz to 68 Hz.

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