LNBH26LS datasheet(13/33 Pages) STMICROELECTRONICS

No. de pieza	LNBH26LS

Descripción Electrónicos	Dual LNBS supply and control IC with step-up and IC interface

PDF	33 Pages

Scroll/Zoom	100%

Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

Página de inicio	http://www.st.com

Logo

13 / 33 page

LNBH26LS

Pin configuration

DocID025504 Rev 1

13/33

Pin n°

Symbol

Name

Pin function

carrier.

If EXTM-A=TEN-A=1: it accepts external 22 kHz logic

signals which activate the 22 kHz tone output (refer to

Section 2.2: "Data encoding by external 22 kHz tone TTL

signal").

Pull up high if the tone output is activated only by the TEN-A

I²C bit.

DSQIN-

DSQIN for

DiSEqC

envelope Input

external 22

KHz TTL input

It is intended for channel B 22 kHz tone control.

It can be used as DiSEqC envelope input or external 22 kHz

TTL input depending on the EXTM-B I²C bit setting as

follows:

If EXTM-B=0, TEN-B=1: it accepts the DiSEqC envelope

code from the main microcontroller. The LNBH26LS uses

this code to modulate the internally generated 22 kHz

carrier.

If EXTM-A=TEN-A=1: it accepts external 22 kHz logic

signals which activate the 22 kHz tone output (refer to

Section 2.2: "Data encoding by external 22 kHz tone TTL

signal").

Pull up high if the tone output is activated only by TEN-B I²C

bit.

Epad

Exposed pad

To be connected with power grounds and to the ground

layer through vias to dissipate the heat.

LNBH26LS Datasheet(PDF) 13 Page - STMicroelectronics