Description
The STEVAL-CBL004V1 demonstration board implements a DC-DC converter based on the LNBH24 dual LNB supply and control IC with step-up and I2C interface. This simple, cost-effective design represents an integrated solution for supplying/interfacing two independent LNB down-converters in satellite antenna dishes. It provides good performance with a minimum of external components. The STEVAL-CBL004V1 includes all the functions needed for the design of dual tuner STBs, with supplying/interfacing functions that are compliant with the international standards. It features an I2C bus interface and, thanks to the fully integrated step-up DC-DC converter, it works with a single input voltage supply in the range of 8 V to 15 V. STEVAL-CBL004V1

Features
■ Complete interface between LNBs and I2C bus
■ Built-in DC-DC converter for single 12 V supply operation (8 - 15 volt Vin range) and high efficiency (typ. 93%@0.5 A)
■ Compliant with main satellite receiver output voltage specifications
■ Accurate 22 kHz tone generator supports bidirectional DiSEqC™ 2.0 and meets widely accepted standards (patent pending)
■ Fast oscillator startup facilitates DiSEqC™ encoding
■ Overload and overtemperature internal protection with I2C diagnostic bits
■ Output voltage and output current level diagnostic feedback through I2C bits
■ LNB short-circuit dynamic protection
■ +/- 4 kV ESD tolerant on output power pins
■ RoHS compliant