Hittite unveils wideband downconverter operating from 700 to 3500MHz
US-based RF IC developer, Hittite Microwave, has released a new Broadband High IP3 Downconverter RFIC which operates from 700 to 3500MHz. The HMC1090LP3E is said to be ideal for space constrained frequency conversion applications in wireless infrastructure equipment such as base transceiver stations, remote radio units, small cells and repeaters. The device s a high linearity down-converting mixer, optimised for multi-standard diversity receiver applications where low power consumption and small size are required. The highly integrated RFIC features a wideband limiting LO amplifier and can be used in any 3 GPP operating band from 700 to 3500 MHz. Unlike conventional narrow-band downconverter RFICs, this device supports both high-side and low-side LO injection over the entire RF band. The HMC1090LP3E integrates LO and IF amplifiers, LO and RF baluns and a wideband passive mixer core with bias control. The unique architecture of this converter provides excellent LO/RF, LO/IF, and RF/IF isolations, while the RF and LO input ports are internally matched to 50Ω. The RFIC exhibits noise figure as low as 8.5dB and input IP3 up to +26 dBm making it ideal for demanding high linearity applications. For narrow-band applications, the input IP3 performance of the device can be further optimised with simple external matching. Consuming typically less than 0.9W of DC power, the HMC1090LP3E provides additional power conservation options in time division duplex (TDD) applications. The device is housed in a compact RoHS compliant, 3 x 3 mm plastic QFN package, and is also available in dual channel format as the HMC990LP4E.
