LNBS21 LNB SUPPLY/CONTROLLER

LNBS21 LNB SUPPLY/CONTROLLER

Intended for analog and digital satellite STB receivers/SatTV, sets/PC cards, the LNBS21 is a monolithic voltage regulator and interface IC, SCHEMATIC DIAGRAM Gate Sense Step-up Controller assembled in PowerSO-20, specifically designed to provide the power and the 13/18V, 22KHz tone signalling to t.

Features

extremely low component count, low power dissipation together with simple design and I2CTM standard interfacing. This IC has a built in DC/DC step-up controller that, from a single supply source ranging from 8 to 15V, generates the voltages that let the linear LNBS21 LT1 Feedback LT2 Vup Vcc Byp OUT Preregul.+ U.V.lockout +P.ON res. Enable I Select V Select Linear Post-reg +Modulator +Protections EXTM SDA SCL ADDR DSQIN I²C interf. 22KHz Oscill. Diagnostics DETIN Tone Detector DSQOUT November 2002 1/19 LNBS21 post-regulator to work at a minimum dissipated power. An UnderVoltage Loc.