STEVAL-CBL013V1 STMicroelectronics

STEVAL-CBL013V1 Single LNB supply and control IC DiSEqC 1.x compliant based on the LNBH25L Data brief 22 kHz tone waveform integrity guaranteed also at no load Low-drop post regulator and high-efficiency step-up PWM with integrated power N-MOS allowing low power losses Overload and overtemperature internal protection with IC diagnostic bits LNB short-circuit dynamic protection RoHS compliant Description This product evaluation board implements a DC- DC converter based on the LNBH25L device used to power LNB inside dish antennas which Features receive satellite TV signals. The LNBH25L is an integrated solution for supplying/interfacing Complete interface between LNB and IC satellite LNB modules in accordance with bus international standards, offering a complete Built-in DC-DC converter for single 12 V solution for single-tuner satellite receivers and supply operation and high efficiency (typ. good performance at low cost using few external 93% 0.5 A) components. The LNBH25L evaluation board 2 Selectable output current limit using an includes an I C bus interface and the internal external resistor 22 kHz tone generator (factory trimmed) is Compliant with main satellite receiver output controlled by the DSQIN pin (TTL compatible), voltage specifications (8 programmable permitting immediate DiSEqC data encoding. A levels) fully integrated step-up DC-DC converter allows Accurate built-in 22 kHz tone generator suits operation with a single input voltage supply widely-accepted standards source ranging from 8 V to 16 V. January 2014 DocID025827 Rev 1 1/4 www.st.com For further information contact your local STMicroelectronics sales office Schematic STEVAL-CBL013V1 1 Schematic Figure 1: STEVAL-CBL013V1 schematic 2/4 DocID025827 Rev 1