STEVAL-CBL004V1 STMicroelectronics

STEVAL-CBL004V1 Power supply demonstration board for LNB based on the LNBH24 Data brief Features 2 Complete interface between LNBs and I C bus Built-in DC-DC converter for single 12 V supply operation (8 - 15 volt V range) and high in 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 STEVAL-CBL004V1 encoding Overload and overtemperature internal 2 with a single input voltage supply in the range of protection with I C diagnostic bits 8 V to 15 V. Output voltage and output current level 2 diagnostic feedback through I C bits LNB short-circuit dynamic protection +/- 4 kV ESD tolerant on output power pins RoHS compliant Description The STEVAL-CBL004V1 demonstration board implements a DC-DC converter based on the LNBH24 dual LNB supply and control IC with 2 step-up and I C 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. 2 It features an I C bus interface and, thanks to the fully integrated step-up DC-DC converter, it works April 2010 Doc ID 15239 Rev 1 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4 Obsolete Product(s) - Obsolete Product(s)Schematic diagram STEVAL-CBL004V1 1 Schematic diagram Figure 1. STEVAL-CBL004V1 circuit schematic 2/4 Doc ID 15239 Rev 1 Obsolete Product(s) - Obsolete Product(s)