RX2000

This amplifier-sequenced hybrid (ASH) receiver RX2000 is based on several leading-edge echnologies that allow outstanding performance in a small and simple-to-apply module. wo surface-accoustic-wave (SAW) devices are employed. Front-end filtering y a low-loss coupled-resonator SAW filter provides excellent selectivity. Typical ensitivity of -83 dBm is achieved with no RF oscillating or regenerative circuits. This results in virtually no RF spurious emissions. A ow-loss SAW delay line provides the time delay necessary to sequence the two RF amplifiers. Time sequencing of the RF gain eliminates e need for frequency conversion prior to AM detection. This receiver RX2000 is designed to operate from a 3 V lithium battery with typically .5 mA current. For system design flexibility, the baseband output is accessible, and the comparator threshold can be changed xternally between two settings. Typical applications include unlicensed wireless remote-controls and digital data links operating in the SA under FCC Part 15.249 and in Canada under DOC RSS-210.