Freescale has introduced a 50 V laterally diffused MOS (LDMOS) RF power transistor designed to streamline UHF transmitter equipment designs. The MRF6V3090N is designed for TV transmitters employing both analog and digital modulation formats, and delivers 90 W peak power at P1dB with greater than 40% efficiency through the UHF broadcast frequency band.
As a linear driver, the device achieves 21 dB power gain and drain efficiency of 12% with an average output power of 4,5 W, based on a DVB-T OFDM signal. The adjacent-channel power ratio (ACPR) at a 4 MHz offset is -68 dBc over a 4 kHz integration bandwidth. As an analog or digital TV final stage for low-power repeaters, the device has typical UHF broadband performance of greater than 40% efficiency, 21 dB gain and an IM3 of less than -30 dBc.
Housed in Freescale’s over-moulded plastic packaging technology, the MRF6V3090N can be used in a single-ended or push-pull configuration. This enables design engineers to use the device in multiple applications and bands requiring high gain and efficiency.
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