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LNB power supply demonstration board based on the LNBH23
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This demonstration board implements a DC-DC converter based on the LNBH23 device. It is used to power LNBs inside dish antennas to receive satellite TV signals.

The LNBH23 is an integrated solution for supplying/interfacing satellite LNB modules in accordance with international standards This simple solution provides good performance at low cost using a low external component count.

The LNBH23 demonstration board includes an I2C™ bus interface and the internal 22 kHz tone generator which is factory trimmed and can be controlled by the DSQIN pin (TTL compatible.

This allows immediate DiSEqC™ data encoding.

Thanks to a fully integrated step-up DC-DC converter, it functions with a single input voltage supply source ranging from 8 V to 15 V.

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Data Brief

Key Features

  • Integrated DC-DC converter
  • Single input supply voltage: from 8 V to 15 V
  • I2C bus interface for the IC control and diagnostics
  • Integrated 22 kHz tone generator, factory trimmed in accordance with the standards that can be controlled by the DSQIN pin or I2C bus
  • User-friendly graphical interface ("LNBxxx control suite" software included in the kit)


Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB0690: LNB power supply demonstration board based on the LNBH23
1.1 92 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
PCB layout
1.0 68 KB

Bill of Materials

Description Version Size
Bill of materials
1.0 53 KB

Schematic Pack

Description Version Size
Board schematic
1.0 25 KB

Related Tools and Software

Related Tools and Software

Part Number Description
STSW-CBL003 SW Functions

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STEVAL-CBL003V1ActiveLNBH23PPRBuy Direct80.85Distributor reported inventory date: 2016-02-09
Distributor NameRegionStockMin. order
Newark Element14Order NowAMERICA20

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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