Datasheet Summary
73M1903C Modem Analog Front End
Simplifying System IntegrationTM
DS_1903C_033 DESCRIPTION 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 performance. This arrangement allows for the design of a high performance hybrid circuit to improve signal to noise performance under low receive level conditions, and patibility with any standard transformer intended for PSTN munications applications. The device incorporates a programmable sample rate circuit to support soft modem and DSP based implementations...