Active Receive Mixer
Analog Devices introduces an active receive mixer suitable for the signal processing requirements within wireless infrastructure designs. The AD8344 integrates an on-chip LO driver and provides conversion gain. The device features 50Ω broadband inputs for both the RF and LO ports. The input frequency range spans from 400 MHz to 1.2 GHz; the LO frequency range spans from 400 MHz to 1600 MHz; and the IF frequency range spans from 70 MHz to 400 MHz. Fabricated on an SiGe complementary bipolar IC process, the product provides a high input linearity of +24 dBm IIP3 with +3 dB conversion gain and an 11.5 dB noise figure at 900 MHz. At 450 MHz, the AD8344 provides a high input linearity of +15 dBm IIP3, with +10 dB conversion gain and an 8.5 dB noise figure. The device operates on a single +5 V supply and requires LO drive from -10 dBm to +4 dBm. It is packaged in a 3 × 3 mm LFCSP package. The part is suited for use in cellular GSM, CDMA and private mobile access equipment, such as TETRA (terrestrial trunked radio).
Analog Devices, Inc.