This document describes the features and characteristics of the STEVAL-CBL007V1 LNB power supply demonstration board based on the DiSEqC 1.X-compliant LNBH23L, including complete interface between LNB and I2C bus, built-in DC-DC converter for single 12 V supply operation, selectable output current limitation, compliance with main satellite receiver output voltage specifications, auxiliary modulation input, accurate built-in 22 kHz tone generator, low-drop post regulator, high efficiency step-up PWM, internal overload and over-temperature protection, and dynamic LNB short-circuit protection.
The STEVAL-CBL007V1 is a demonstration board designed to provide information on the correct use of the LNBH23L device. It serves as a complete interface between the LNB and the C bus, utilizing a built-in DC-DC converter for efficient single 12 V supply operation with a typical efficiency of 93% at 0.5 A.
| Input voltage range | 8 V to 15 V |
|---|---|
| Typical efficiency | 93% @ 0.5 A |
| Output current limitation | Selectable via external resistor |
| Auxiliary modulation input | EXTM pin |
| Tone generator frequency | 22 KHz |
| Compliance | DiSEqC 1.x |
No, it minimizes the number of external components required by being a simple and inexpensive integrated solution.
The board includes internal overload, over-temperature protection, and dynamic LNB short-circuit protection.