LNBP21D2-TR Datasheet PDF - ST Microelectronics

DESCRIPTION

●Intended for analog and digital satellite STB receivers/SatTV, sets/PC cards, the LNBP21 is a

●monolithic voltage regulator and interface IC, assembled in SO-20 and PowerSO-20,

●specifically designed to provide the power and the 13/18V, 22KHz tone signalling to the LNB down

●converter in the antenna or to the multiswitch box. In this application field, it offers a complete

●solution with extremely low component count, low power dissipation together with simple design and I2CTM standard interfacing.

●■ COMPLETE INTERFACE BETWEEN LNB AND I2CTM BUS

●■ BUILT-IN DC/DC CONTROLLER FOR SINGLE 12V SUPPLY OPERATION

●■ ACCURATE BUILT-IN 22KHz TONE OSCILLATOR

●■ SUITS WIDELY ACCEPTED STANDARDS

●■ FAST OSCILLATOR START-UP FACILITATES DiSEqCTM ENCODING

●■ BUILT-IN 22KHz TONE DETECTOR SUPPORTS BI-DIRECTIONAL DiSEqCTM

●■ LOOP-THROUGH FUNCTION FOR SLAVE OPERATION

●■ LNB SHORT CIRCUIT PROTECTION AND DIAGNOSTIC

●■ CABLE LENGTH DIGITAL COMPENSATION

●■ INTERNAL OVER TEMPERATURE PROTECTION

●■ ESD RATING 4KV ON POWER INPUT-OUTPUT PINS