LNBH21PD
Online Store: https://www.utsource.net Product Link:https://www.utsource.net/itm/p/907472.html DESCRIPTION Intended for analog and digital satellite STB receivers/SatTV, sets/PC cards, the LNBH21 is a monolithic voltage regulator and interface IC, assembled in POWER SO-20, specifically designed to provide the 13/18V power supply and the 22KHz tone signalling to the LNB downconverter 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 AND HIGH EFFICIENCY (Typ. 94% @ 750mA) ■ TWO SELECTABLE OUTPUT CURRENT LIMIT (450mA / 750mA) ■ BOTH COMPLIANT WITH EUTELSAT AND DIRECT OUTPUT VOLTAGE SPECIFICATION ■ 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 DiSEqCTM2.0 ■ SEMI-LOWDROP POST REGULATOR AND HIGH EFFICIENCY STEP-UP PWM FOR LOW POWER LOSS: Typ. 0.56W @ 125mA ■ TWO OUTPUT PINS SUITABLE TO BYPASS THE OUTPUT R-L FILTER AND AVOID ANY TONE DISTORSION (R-L FILTER AS PER DiSEqC 2.0 SPECs, see application circuit on pag. 5) ■ CABLE LENGTH DIGITAL COMPENSATION ■ OVERLOAD AND OVER-TEMPERATURE INTERNAL PROTECTIONS ■ OVERLOAD AND OVER-TEMPERATURE I2C DIAGNOSTIC BITs ■ LNB SHORT CIRCUIT SOA PROTECTION WITH I2C DIAGNOSTIC BIT ■ +/- 4KV ESD TOLERANT ON INPUT/OUTPUT POWER PINS Utsource offer high-quality products, competitive price with convenient shipping. Know more about Utsource: https://www.youtube.com/watch?v=tmJQq0FS9y8 Subscribe to Utsource channel: https://www.youtube.com/channel/UCsWmWwb0S68rruOf8ebN8JQ/featured Contact us:Email: sales@utsource.com Follow us: Facebook: https://www.facebook.com/utsource.net Twitter: https://twitter.com/pantiejun LinkedIn: https://www.linkedin.com/company/utsource/ ВКонтакте: https://vk.com/utsource Instagram: https://www.instagram.com/utsource_official/ Pinterest: https://www.pinterest.com/bestutsource
Online Store: https://www.utsource.net Product Link:https://www.utsource.net/itm/p/907472.html DESCRIPTION Intended for analog and digital satellite STB receivers/SatTV, sets/PC cards, the LNBH21 is a monolithic voltage regulator and interface IC, assembled in POWER SO-20, specifically designed to provide the 13/18V power supply and the 22KHz tone signalling to the LNB downconverter 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 AND HIGH EFFICIENCY (Typ. 94% @ 750mA) ■ TWO SELECTABLE OUTPUT CURRENT LIMIT (450mA / 750mA) ■ BOTH COMPLIANT WITH EUTELSAT AND DIRECT OUTPUT VOLTAGE SPECIFICATION ■ 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 DiSEqCTM2.0 ■ SEMI-LOWDROP POST REGULATOR AND HIGH EFFICIENCY STEP-UP PWM FOR LOW POWER LOSS: Typ. 0.56W @ 125mA ■ TWO OUTPUT PINS SUITABLE TO BYPASS THE OUTPUT R-L FILTER AND AVOID ANY TONE DISTORSION (R-L FILTER AS PER DiSEqC 2.0 SPECs, see application circuit on pag. 5) ■ CABLE LENGTH DIGITAL COMPENSATION ■ OVERLOAD AND OVER-TEMPERATURE INTERNAL PROTECTIONS ■ OVERLOAD AND OVER-TEMPERATURE I2C DIAGNOSTIC BITs ■ LNB SHORT CIRCUIT SOA PROTECTION WITH I2C DIAGNOSTIC BIT ■ +/- 4KV ESD TOLERANT ON INPUT/OUTPUT POWER PINS Utsource offer high-quality products, competitive price with convenient shipping. Know more about Utsource: https://www.youtube.com/watch?v=tmJQq0FS9y8 Subscribe to Utsource channel: https://www.youtube.com/channel/UCsWmWwb0S68rruOf8ebN8JQ/featured Contact us:Email: sales@utsource.com Follow us: Facebook: https://www.facebook.com/utsource.net Twitter: https://twitter.com/pantiejun LinkedIn: https://www.linkedin.com/company/utsource/ ВКонтакте: https://vk.com/utsource Instagram: https://www.instagram.com/utsource_official/ Pinterest: https://www.pinterest.com/bestutsource