Tcm3105n Modem Fsk Bell 202 Ccitt V23 Dip16 Itytarg

The TCM3105 is a single-chip asynchronous frequency-shift-keying (FSK) voice-band modem that uses silicon-gate CMOS technology to implement a switched-capacitor architecture. It is pin selectable (TXR1, TXR2, and TRS) for a wide range of transmit/receive baud rates and is compatible with the applicable BELL 202 or CCITT V23 standards. Operation is fully reversible, thereby allowing both forward and backward channels to be used simultaneously. 

The transmitter is a programmable frequency synthesizer that provides two output frequencies (on TXA), representing the marks and spaces of the digital signal present on TXD

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