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
