Geneva, SwitzerlandSTMicroelectronics has expanded its family of silicon monolithic microwave integrated circuits (MMIC) amplifiers with a single-chip product designed for use in electronic devices embedding a GPS function.
The company reports that its SMA661AS is the first low-noise amplifier with integrated matching networks and an embedded power-down function. The chip, which requires one external input capacitor, is designed to reduce the application bill of materials and the required printed circuit board (PCB) area, resulting in solution optimized for compact and cost-effective GPS low noise amplifier (LNA) functionality.
The SMA661AS is implemented in 70GHz Silicon-Germanium BiCMOS technology. At the GPS frequency of 1.575GHz, power gain is 17dB and noise figure is 1.4dB with a current consumption of 8.5mA. The device features standby current consumption of 10nA. All these features are designed to remain steady over the operating environment temperature range of -40C to +85C.
Housed in an SOT666 plastic package (1.65 x 1.2 x 0.57mm), the SMA661AS is priced at US $0.35 in quantities of one million units. Click here for the data sheet.
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