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