Milpitas, Calif., and Norwood, MA – August 14, 2017 – Linear Technology, Inc. (Analog Devices, Inc., ADI) Linear Technology Corporation introduces the LTC5552, a double-balanced mixer that delivers best-in-class bandwidth matching from 3GHz to 20GHz. This mixer can be used as an upconverter or downconverter. The LTC5552 is ideal for upconversion applications because its differential DC port supporting DC makes the LO close to RF in frequency. Its low LO to RF leakage (less than –25dBm) greatly reduces the burden on the external filter. In addition, this mixer has excellent linearity: 20.1dBm IIP3 at 14GHz and 18.3dBm IIP3 at 17GHz. The device integrates a wideband LO buffer that requires only 0dBm of drive power and virtually eliminates an external high-power LO amplifier circuit. In addition, the LTC5552 integrates a wideband balun in its RF port, allowing single-ended 50Ω matching to be performed over its specified frequency range. All of these features minimize external components, simplify design and achieve very small solution sizes.
The LTC5552's extremely wide bandwidth and high performance make it ideal for a wide range of applications, including 5G broadband wireless services, microwave backhaul, satellite broadband radio, radar systems, active antenna arrays, X-band, Ku-band and Ka-band transceivers, RF testing Equipment, spectrum analysis and satellite communications.
The LTC5552 is available in a tiny 12-pin, 3mm x 2mm plastic QFN package. The device is specified over the –40°C to 105°C case temperature range to support extended ambient operating temperatures. The mixer operates from a single 3.3V supply and typically consumes 132mA of supply current. In addition, the LTC5552 can be turned off via an enable pin. When disabled, this device only draws a maximum standby current of 100μA. The enable pin can also be driven directly to quickly turn the device on and off in less than 0.2μs, supporting time division duplex (TDD) or burst mode transmitters and receivers. The LTC5552 is priced at $22.00 each in 1,000-piece quantities and is sampling and production available. For more information, please log in
LTC5552.
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Performance Summary: LTC5552 Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
? Â Â Matched RF frequency 3GHz to 20GHz
? Matched LO frequency from 1GHz to 20GHz
? Matched IF frequency DC to 6GHz
? Upconversion or down conversion
? High input IP3 in the 14GHz to 20.1dBm
18.3dBm at 17GHz
? Low LO drive level 0dBm
? Low LO-RF leakage to -25dBm in the 17GHz
? Low conversion loss in the 17GHz is 10.8dB
The quotes given in this article are for budgetary purposes only. Quotations around the country may vary depending on local tariffs, taxes, fees and exchange rates.
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