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ホーム > ニュース > Company News > Double balanced mixer matches .....

Double balanced mixer matches from 3GHz to 20GHz.

  • 著者:Ella Cai
  • 公開::2017-08-15
The LTC5552 is  a double balanced mixer with wideband matching from 3GHz to 20GHz.  The mixer can be used as an up- or downconverter.

The LTC5552 is especially useful in upconversion applications with its DC capable differential IF port that enables the LO to be close in frequency to the RF. Its low LO to RF leakage of less than –25dBm greatly eases the burden on the external filter.

Additionally, the mixer delivers excellent linearity of 20.1dBm IIP3 at 14GHz, and 18.3dBm at 17GHz.

The device integrates a broadband LO buffer, requiring only 0dBm drive and effectively eliminating an external high power LO amplifier circuit.

The LTC5552 integrates a wideband balun transformer in its RF port, allowing single-ended 50Ω matched operation over its specified frequency range. All these features result in minimum external components, simplified design and a very small solution size.

The LTC5552’s wide bandwidth and performance is suitable  for a broad range of applications, including 5G broadband wireless access, microwave backhaul, satellite broadband radios, radar systems, active antenna arrays, X, Ku and Ka band transceivers, RF test equipment, spectrum analysis and satellite communications.

The LTC5552 is offered in a tiny 12-lead, 3mm x 2mm plastic QFN package. The device is rated from –40°C to 105°C case temperature to support extended environmental operating temperatures. The mixer is powered from a single 3.3V supply and typically consumes 132mA supply current.

The LTC5552 can be shut down via an enable pin. When deactivated, the device draws only 100μA maximum standby current. The enable pin can also 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 LTC5552 is priced starting at $22.00 each in 1,000-piece quantities. Samples and production quantities are available immediately.