Filtered amp improves GPS reception

GPS low noise amplifier with integrated filter provides superior reception sensitivity and is ideal for use in handsets, in-vehicle navigation GPS receivers and GPS antennas.

Avago Technologies has announced the industry's first GPS low noise amplifier (LNA) with integrated filter.

With a very low noise figure and high linearity, Avago's ALM-1412 provides superior GPS signal reception sensitivity and is ideal for use in handsets, in-vehicle navigation GPS receivers and GPS antennas.

In particular, the ALM-1412 provides excellent noise rejection at cellular/PCS-band frequencies, a critical feature for simultaneous GPS (S-GPS) operation.

Designers of handsets or in-vehicle navigation can create compact products with more features and functionality due to the very small package size of the ALM-1412.

Avago has integrated its GPS LNA with its FBAR (film bulk acoustic resonator) filter into a 3.3 x 2.1 x 1.1mm MCOB package, which reduces PCB space and component count for GPS applications at 1.575GHz.

A built-in shunt inductor included at the RF input of the LNA enhances ESD protection.

During typical operating conditions of 2.85V and 8mA, the ALM-1412 delivers an exceptional 0.85dB noise figure, 12.5dB gain, +6.6dBm IIP3 (input third order intercept point) and 58dBc cell and PCS-band rejection.

The ALM-1412 can also operate at 1V and still achieve very low noise figure and high gain, making it suitable for use in critical low-power GPS applications or during low-battery situations.

Samples are available now.

Production quantities will be available at the end of March 2007 through Avago's direct sales channel and worldwide distribution partners.

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