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Part Number A8285
Manufacturers Allegro
Logo Allegro
Description LNB Supply and Control Voltage Regulator
Datasheet A8285 DatasheetA8285 Datasheet (PDF)

  A8285   A8285
A8285 and A8287 LNB Supply and Control Voltage Regulator Features and Benefits • LNB selection and standby function • Provides up to 500 mA load current • Two-wire serial I2C interface • Built-in tone oscillator, factory-trimmed to 22 kHz; facilitates DiSEqC™ 2.0 encoding • Auxiliary modulation input • 22 kHz tone detector facilitates DiSEqC™ decoding (A8287 only) • Tracking switch-mode power converter for lowest dissipation • LNB overcurrent protection and diagnostics • Internal overtemperature protection • LNB voltages (16 possible levels) compatible with all common standards Packages 16-pin SOIC (A8285) 24-pin SOIC (A8287) Description Intended for analog and digital satellite receivers, the LNB (low noise block) converter regulator is a monolithic linear and switching voltage regulator, specifically designed to provide power and interface signals to an LNB downconverter, via coaxial cable. The device uses a 2-wire bidirectional serial interface, compatible with the I2C (Inter-C .



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