High-Linearity Mixer Upconverts 3 to 8 GHz

Model 5576 is an active mixer optimized for producing low-noise signals from 3 to 8 GHz. The high-linearity upconversion mixer handles input signals from 30 MHz to 8 GHz and single-ended local oscillator (LO) signals from 1 to 8 GHz at levels to +10 dBm, producing single-ended output signals from 3 to 8 GHz. The mixer achieves an output third-order intercept point of +25 dBm with 14.1-dB noise figure at 5.8 GHz. It has an output noise floor of -154 dBm/Hz. The active mixer is optimized for +5 VDC but can also work with a +3.3-VDC supply with slightly reduced performance.

The active mixer is suitable for wideband transmitters, in fixed wireless access equipment, and in 4G/5G wireless communications infrastructure equipment. It offers RF-to-LO isolation of better than 35 dB and -0.6-dB conversion gain over an operating temperature range of -40 to +105°C. Input 1-dB compression is +8.4 dBm at an output frequency of 3.5 GHz and +8.5 dBm at an output frequency of 5.8 GHz. The mixer is supplied in a 4 × 4 mm 16-lead QFN package.

Linear Technology Corp., 1630 McCarthy Blvd., Milpitas, CA 95035-7417; (408) 432-1900, FAX: (408) 434-0507

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