Date: 06/05/2012

DVGAs from Triquint for 3G/4G base stations

TriQuint Semiconductor has released new digital variable gain amplifiers (DVGAs) for designing automatic gain control feature in 3G / 4G base stations, repeaters and point-to-point microwave radios, and satellite communications terminals. The new DVGAs include the TQM829007 (600 to 1000 MHz) and the TQM879008 (1.5 to 2.7 GHz).

These product in leadless 6x6mm, industry-standard packages include gain blocks, a highly-linear amplifier, matching components, bias chokes, blocking capacitors, and a digitally-controlled, 6-bit attenuator that varies gain through an SPI in 0.5dB steps from 0 to 31.5dB.

Key features include:
The TQM829007 operates from 600 to 1000 MHz while the TQM879008 operates from 1.5 to 2.7 GHz.
Feature digitally-controlled, 6-bit attenuator that varies amplifier gain in 0.5 dB steps (across a 31.5dB range) via a serial programming interface (SPI).
Operate over a temperature range of -40° to +85° C and have a minimum MTTF of 1,000 years at a mounting temperature of +85º C.
Pin-compatible with TriQuint's TQM879006 DVGA that covers 1.4 to 2.7 GHz and provides 31dB of gain control, +25.4dBm RF output and a 1.5dB noise figure.
The TQM829007 complements other TriQuint devices with similar performance at key cellular frequencies including the TQM879006 (1.4-2.7 GHz) and TQM879008 (1.5-2.7 GHz.)