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XR-14412 Datasheet

Part Number XR-14412
Manufacturers EXAR
Logo EXAR
Description FSK Modem System
Datasheet XR-14412 DatasheetXR-14412 Datasheet (PDF)

XR·14412 FSK Modem System GENERAL DESCRIPTION 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. Included in the XR-14412 are features for self-testing and an echo suppression tone generator. The XR-14412 utilizes complementary MOS technology for low-powe.

  XR-14412   XR-14412






FSK Modem System

XR·14412 FSK Modem System GENERAL DESCRIPTION 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. Included in the XR-14412 are 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 Operation Self-test Mode Selectable Data Rates-300, or 600 bps T2L- or CMOS-Compatible Inputs and Outputs Echo Suppressor Disable Tone Generator U.S. or Foreign (CCITT) Compatible ORDERING INFORMATION Tx EN Tx DATA MODE TXCAR APPLICATIONS Stand-Alone MODEMS Remote Terminals Acoustical Couplers Built-in MODEMS Part Num.


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