Baseband parts suit for zero IF architectures

Baseband parts suit for zero IF architectures

The HMC960LP4E dual digital variable-gain amplifier and the HMC900LP5E dual programmable low-pass filter with driver meet the demand for a universal multistandard, wideband/carrier, transceiver, which is compact and can process complex high-density constellation signals. The HMC960LP4E supports discrete gain levels from 0 to 40 dB, in 0.5-dB steps.

The dual-differential HMC900LP5E filter features 0- or 10-dB input gain settings and supports arbitrary bandwidths from 3.5 to 50 MHz. Once calibrated, the filter has an accuracy of ±2.5% of the desired bandwidth. The sixth-order Butterworth transfer function delivers superior stop-band rejection while maintaining both a flat passband and minimal group delay variation. The HMC960LP4E can be combined with the HMC900LP5E to provide a complete direct down-conversion baseband lineup that drives a pair of Hittite I/Q channel ADCs. (HMC960LP4E, $12.19 each; HMC900LP5E, 16.25 each — available now.)

By Christina Nickolas

Hittite Microwave , Chelmsford , MA
Sales 978-250-3343

www.hittite.com