AMIC Communication Corp. launched A7282, its first GPS receiver IC. The chip integrates an LNA, image rejected mixer, IF band pass filer, IF VGA amplifier, voltage-controlled oscillator (VCO), PLL, 2bit ADC and internal regulator.
According to AMIC, the A7282 does not need an external IF filer and VCO tank components. Instead, only a bypass capacitor, external LNA and RF filter are required. The product is a single conversion receiver that downconverts the 1,575.42MHz GPS signal to 4.092MHz IF. The on-chip 2bit ADC samples the IF signal and outputs the digitized signals to a baseband correlator.
The receiver IC operates from a supply voltage of 2.4V to 3.6V over the -40°C to 85°C temperature range. It is placed in a 32-pin QFN package measuring 5-by-5mm. The product suits telemetric equipment, PDAs, handheld GPS devices, asset tracking and vehicle navigation systems.