OEM GPS Receiver with Integrated Antenna

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The UC322 from Fastrax combines SiRF’s 20-channel GSC3LT single-chip GPS receiver with an on-board chip antenna in a package measuring 10.4x30x2.9 millimeters. According to the company, the UC322 has a tracking sensitivity of -159 dBm and power consumption of 90 mW and 3.3 volts. The antenna does not need a separate ground plane. Instead it utilizes the unit’s own printed circuit board (PCB) for gaining the best antenna signal. A new companion product, the IT321, is available without the integrated antennas. A Fastrax EV322 evaluation board provides a single chip USB to UART Bridge, a regulated +3.3V power supply, and three push buttons for re-set, on/off (normal mode/hibernate mode), and re-programming mode. The ground plane size of the evaluation board is 100x70 millimeters, typical of the PCB dimensions in personal navigation devices. Fastrax Ltd., Vantaa, Finland.