Moreover, the LTC5553 integrates wideband balun transformers on chip. So all ports operate single-ended, 50Ω matched over their respective specified frequency range.
In addition, the mixer has excellent port-to-port isolation, offering –32dBm LO to RF leakage at 17GHz, thus easing external filtering requirements. All of these features result in minimum external components, simplified design and a very small solution size.
The LTC5553’s extremely wide bandwidth and performance is ideal for a wide range of applications including 5G microwave backhaul, broadband wireless services, satellite broadband radios, radar systems, active antenna arrays, X and Ku band transceivers, test equipment, spectrum analysis and satellite communications.
The LTC5553 is offered in a tiny 12-lead, 3mm x 2mm plastic QFN package. The device is rated for operation from –40°C to 105°C case temperature to support extended environmental operating temperature. The mixer is powered from a single 3.3V supply, drawing a quiescent supply current of 132mA.
Additionally, the LTC5553 can be shut down via an enable pin. When deactivated, the device draws only 100μA maximum standby current. The enable pin can be driven directly to turn the device on and off rapidly in less than 0.2μs, supporting time-division duplex (TDD) or burst mode type transmitters and receivers.
The LTC5553 is priced starting at $22.00 each in 1,000-piece quantities. Samples and production quantities are available immediately.
