Freescale unveils 450W RF power transistor for UHF broadcast applications

The MRF6VP3450H device offers high output power for UHF applications while enabling system-level power reductions.

Author:: TVTechnology
Publish date:: May 1, 2008
Social count:: 0

Freescale Semiconductor has introduced a 50V laterally diffused MOS (LDMOS) RF power transistor designed to deliver 50 percent higher output power than other UHF TV broadcast solutions.

The MRF6VP3450H device offers high output power for UHF applications while enabling system-level power reductions that can potentially save broadcasters thousands of dollars in operating costs. The MRF6VP3450H delivers more than 450W peak power at P1dB with 50 percent efficiency throughout the UHF broadcast frequency band.

The MRF6VP3450H is designed for TV transmitters employing both analog and digital modulation formats. The MRF6VP3450H can help reduce the cost of the power consumed by RF power amplifiers by converting a greater percentage of the required AC input power into RF output power. Ultimately, this efficiency reduces the energy usage required by the transmitter.

For more information, visit: www.freescale.com/files/pr/mrf6vp3450h.html.

The MRFE6VP8600H and MRFE6VP8600HS are push-pull power transistors that provide enhanced efficiency and operate over the 470MHz to 860MHz frequency band.

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Readers who have followed my RF Technology column for the last 20 years may have noticed that I started out saying that solid-state amplifiers would have a hard time competing with tube amplifiers in high power applications.

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The Rohde & Schwarz medium-power transmitter along with the new R&S THU9 UHF high-power transmitter offer efficiency of up to 38 percent for COFDM operation.

The Phoenix is intended for UHF orthogonal frequency division multiplexing (OFDM) digital video broadcasting and is being provided in a range of output power levels ranging from a few watts up to three kilowatts.

The Phoenix is intended for UHF orthogonal frequency division multiplexing (OFDM) digital video broadcasting and is being provided in a range of output power levels ranging from a few watts up to three kilowatts.