LNBH23L Datasheet LNB SUPPLY/CONTROLLER

Manufacturer: STMicroelectronics

LNBH23L lnb supply/controller by STMicroelectronics - Datasheet Preview

Datasheet Details

Part number	LNBH23L
Manufacturer	STMicroelectronics
File Size	505.01 KB
Description	LNB SUPPLY/CONTROLLER
Download	LNBH23L Download (PDF)

General Description

Intended for analog and digital satellite receivers, the LNBH23L is a monolithic voltage regulator and interface IC, assembled in QFN32 5 x 5 specifically designed to provide the 13 / 18 V power supply and the 22 kHz tone signalling to the LNB down-converter in the antenna dish or to the multi-switch box.

In this application field, it offers a complete solution with extremely low component count, low power dissipation together with simple design and I²C standard interfacing.

■ ■ ■ Applications ■ ■ ■ STB satellite receivers TV satellite receivers PC card satellite receivers Table 1.

Overview

LNBH23L LNB supply and control IC with step-up and I²C interface.

Key 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 limit by external resistor Compliant with main satellite receivers output voltage specification Auxiliary modulation input (EXTM pin) facilitates DiSEqC™ 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.

More Datasheets from STMicroelectronics

Part Number	Description
LNBH23	LNBs supply/controller
LNBH2	LNB SUPPLY AND CONTROLLER
LNBH21	LNB SUPPLY/CONTROLLER
LNBH221	DUAL LNB SUPPLY/CONTROLLER
LNBH24	DUAL LNB SUPPLY/CONTROLLER
LNBH24L	Dual LNBS supply/controller
LNBH25	LNB-supply / controller
LNBH25L	LNB supply/controller
LNBH25LS	LNB supply/controller
LNBH25S	LNB-supply / controller