73M1903C end equivalent, modem analog front end.
of the device include an input reference frequency circuit, which accepts a range of crystals from 4.9-27 MHz. It also accepts external reference clock values between 1 M.
The device incorporates a programmable sample rate circuit to support soft modem and DSP based implementations of all s.
The 73M1903C Analog Front End (AFE) IC includes fully differential hybrid driver outputs, which connect to the telephone line interface through a transformerbased DAA. The receive pins are also fully differential for maximum flexibility and performan.
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