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9 July 2009


Avago launches balanced LNAs pair for 500-2700MHz cellular infrastructure

Avago Technologies of San Jose, CA, USA has launched the MGA-16516/17516 ultra-low-noise, high-gain, high-linearity gallium arsenide (GaAs) balanced low-noise amplifiers (LNAs), which are designed to be used as first-stage LNAs for cellular infrastructure applications.

The MGA-16516/17516 LNAs are housed in a low-cost surface-mount 16-lead QFN package with a low profile and compact footprint of 4mm x 4mm x 0.85mm, and were developed using Avago’s proprietary 0.25 micron GaAs enhancement-mode pHEMT process. The MGA-16516 operates at 500-1700MHz and the MGA-17516 at 1700-2700MHz, enabling Avago to provide support for GSM, CDMA, UMTS and next-generation LTE cellular bandwidths, with a common footprint, external matching network and PCB layout across 500-2700MHz.

In a typical operating environment of 5V and 50mA per channel, the MGA-16516 delivers a 0.45dB noise figure, 17.5dB gain, 11.5dBm input third-order intercept point (IIP3), and 18dBm output power at 1dB compress point (P1dB) at 850MHz. Under the same operating conditions, the MGA-17516 delivers enhanced performance of 0.52dB noise figure, 17.2dB gain, 13.7dBm IIP3, and 21.5dBm output power at P1dB at 1850MHz.

The ultra-low noise figure, high gain and high linearity help to improve sensitivity and dynamic range in cellular infrastructure applications (typically including tower-mounted amplifiers, repeaters and remote/digital radio heads). Specifically, the MGA-16516/17516 have been designed for use with 3dB hybrid couplers at the input and output of LNAs typically found in the front end of cellular base-stations, combiners and transceiver radio cards. Balanced or dual LNA configuration suits base-station front receivers with balanced LNA design

Pricing for the MGA-16516/17516 starts at $3.22 in 10,000 unit volumes.

See related item:

Avago introduces MGA-21108 GaAs LNA MMIC

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