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LM1893

Carrier-Current Transceiver; Noise resistant FSK modulation\nUser-selected impulse noise filtering\nUp to 4.8 kBaud data transmission rate\nStrings of 0’s or 1’s in data allowed\nSinusoidal line drive for low RFI\nOutput power easily boosted 10-fold\n50 to 300 kHz carrier frequency choice\nTTL and MOS compatible digital levels\nRegulated voltage to power logic\nDrives all conventional power linesApplications\nEnergy management systems\nHome convenience control\nnter-office communication\nAppliance control\nFire alarm systems\nSecurity systems\nTelemetry\nComputer terminal interface;

General Description\nCarrier-current systems use the power mains to transfer in formation between remote locations. This bipolar carrier current chip performs as a power line interface for half-duplex (bi-directional) communication of serial bit streams of virtually any coding. In transmission, a sinusoidal carrier is FSK modulated and impressed on most any power line via a rugged on-chip driver. In reception, a PLL-based demodulator and impulse noise filter combine to give maximum range. A complete system may consist of the LM1893, a COPSTM controller, and discrete components.

LM1893

LM1893/LM2893 Carrier-Current Transceiver

LM1893N

LM1893/LM2893 Carrier-Current Transceiver

MM1893A

300mALDO

MM1893B

300mALDO

MM1893C

300mALDO