STEVAL-CBL007V1 datasheet(1/4 Pages) STMICROELECTRONICS

Il numero della parte	STEVAL-CBL007V1

Spiegazioni elettronici	LNB power supply demonstration board based on the DiSEqC 1.X-compliant LNBH23L

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

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Data brief

For further information contact your local STMicroelectronics sales office.

August 2010

Doc ID 17669 Rev 1

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STEVAL-CBL007V1

LNB power supply demonstration board based on the

DiSEqC 1.X-compliant LNBH23L

Features

■ Complete interface between LNB and I2C bus

■ Built-in DC-DC converter for single 12 V supply

operation and high efficiency (typ. 93% @ 0.5

A)

■ Selectable output current limitation via external

resistor

■ Compliant with main satellite receiver output

voltage specifications

■ Auxiliary modulation input (EXTM pin)

facilitates DiSEqCTM 1.X encoding

■ Accurate built-in 22 kHz tone generator suits

widely-accepted standards

■ Low-drop post regulator and high efficiency

step-up PWM with integrated power NMOS to

reduce power losses

■ Internal overload and over-temperature

protection with I2C diagnostic bits

■ Dynamic LNB short-circuit protection

■ RoHS compliant

Description

The STEVAL-CBL007V1 demonstration board is

intended to provide information and suggestions

on the correct use of the LNBH23L device.

The LNBH23L is an integrated solution for

supplying/interfacing satellite LNB modules.

Simple and inexpensive, it provides good

performance while minimizing the number of

external components required.

It includes all functions needed for LNB supply

and interfacing, and is compliant with international

standards. It includes an I2C bus interface and,

due to the fully integrated step-up DC-DC

converter, functions with a single input voltage

supply from 8 V to 15 V.

STEVAL-CBL007V1

www.st.com

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