The LTC5549 double-balanced mixer can operate either as an upconverter or downconverter, with a very wide RF frequency range from 2GHz to 14GHz. Offering a linearity of 24.4 dBm IIP3 at 9 GHz, the device enables efficient microwave transmitter and receiver designs with an integrated LO buffer that needs just a 0-dBm drive level. Moreover, the LTC5549 has an integrated on-chip, switchable frequency doubler for LO signal, providing an option to use lower cost, commonly available low frequency synthesizers. The LTC5549 employs wideband integrated balun transformer optimized to extend RF frequency bandwidth from 2GHz to 14GHz while enabling single-ended operation. Its IF port also has wide bandwidth up to 6GHz. All three ports are 50Ω matched. The mixer offers high port-to-port isolation, minimizing undesirable LO leakage, and easing external filtering requirements. The LTC5549 is priced starting at $9.50 each/1,000. For more information and a datasheet, visit http://www.linear.com/product/LTC5549
Linear Technology Corp.