Broadband RF mixer achieves 26.9-dBm IIP3 while consuming just 294 mW

Broadband RF mixer achieves 26.9-dBm IIP3 while consuming just 294 mW

With an operating frequency of 300 MHz to 4 GHz, the LTC5567 downconverting mixer achieves 26.9-dBm IIP3 while consuming just 294 mW. This device also offers a wide IF frequency range of 5 to 2,500 MHz to support 4G wireless base stations and a wide range of high dynamic range receiver applications.

Additional features include a supply voltage of 3.3 V, a current consumption of 89 mA, a conversion gain of 1.9 dB, a noise figure of 11.8 dB, and a noise figure with 5-dBm blocking of 16.5 dB. RF balun transformers are integrated on-chip at the RF and LO inputs, enabling the LTC5567 to operate single-ended with 50-Ω input impedance from 1.4 to 3 GHz. The LO input contains a built-in buffer amplifier, requiring only 0-dBm drive level.

Housed in a 4 x 4-mm QFN package, the part is specified for case temperature operation from –40° to 105°C. Also, the mixer can be conveniently shut down with an enable control pin. When disabled, the IC draws a maximum of 100-μA leakage current. (From $6.50 ea/1,000 — available now.)

By Christina Nickolas

Linear Technology , Milpitas , CA
Sales Office 408-428-2050
www.linear.com