NXP Semiconductors n. V .) (NASDAQ: nxpi) recently launched the industry's first ultra-broadband Doherty power amplifier (470 to 806 MHz). The new product uses the ultra-broadband Doherty reference design of the blf884p and blf884ps architectures. The brand new 70 W DVB-T LDMOS is designed to use an over-Broadband Operating-in-house (patent pending) architecture that improves the efficiency of the Doherty topology for broadcast transmitters.
Click to view the live demonstration video of the NXP ultra-wideband Doherty power amplifier.
Compared with traditional UHF technology that can only achieve 30% efficiency, the Doherty solution can achieve 45-50% power amplifier efficiency, significantly improving efficiency. Ultra-Wideband Doherty is designed to use the sophisticated 50 v ldmos Technology of XP, combined with the high reliability of blf884p and blf884ps, making it an ideal choice for digital broadcast transmitters.
"With the expertise and Doherty architecture of XP, we can design a unique ultra-broadband Doherty solution, high efficiency without additional costs or delay time-to-market: a single Doherty design allows us to cover the complete UHF Band (from 470 to 806 MHz ). The test results of the first high-bandwidth Doherty power amplifier show that our main customers have achieved amazing efficiency improvement, which further verifies our solution. Considering the huge pressure to provide richer content through high-performance television transmitters, we believe that the ultra-broadband Doherty architecture will have a wide impact on the entire digital broadcast market. At the same time, the average power of DVB-T is 70
The blf884p/PS ultra-broadband Doherty reference design is also very suitable for completing point applications ."