XR-14412 Datasheet (EXAR) - FSK Modem System

XR-14412, FSK Modem System

The XR-14412 contains all the necessary circuitry to construct a complete FSK modulator/demodulator (MODEM) system.

Included is circuitry for pinprogrammable frequency bands, either U.S.

or foreign (CCITI) standards for low-speed MODEMS.

The XR-14412 provides T2L-compatible inputs and outputs.

Inclu

XR-14412 Features

* for self-testing and an echo suppression tone generator. The XR-14412 utilizes complementary MOS technology for low-power operation. FUNCTIONAL BLOCK DIAGRAM Voo TTLD TYPE ECHO FEATURES Simplex, Half-Duplex, and Full-Duplex Operation Crystal Controlled Answer or Originate Modes Single Supply Oper