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This amplifier-sequenced hybrid (ASH) receiver 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 sensitivity better than -72 dBm is achieved with no F oscillating or regenerative circuits. This results in virtually no RF spurious emissions. A low-loss SAW delay line provides the time elay necessary to sequence the two RF amplifiers. Time sequencing of the RF gain eliminates the need for frequency conversion prior o AM detection. This receiver is designed to operate from a 3 V lithium battery with typically 2.5 mA current. For system design flexibility, he baseband output is accessible, and the comparator threshold can be changed externally between two settings. Typical applications nclude unlicensed wireless remote-controls, and digital data links operating in the USA under FCC Part 15.249 and in Canada nder DOC RSS-210.
RX2020 Maximum Ratings
Rating
Value
Units
Incident RF Power
+10
dBm
Power Supply Voltage (VCC to Ground) (Observe ESD Precautions)
-0.3 to +4.0
VDC
ESD (100 pF, 1.5 k) Terminals 2, 3, or 7 to Ground All Other Terminals to Ground
±2000
V
±300
Case Temperature
-40 to +100
°C
RX2020 Features
• Ideal for 916.5 MHz, 3 V Data Receivers in Europe • High-Sensitivity Passive Design with No RF Oscillation • Use with HX2000 for 19.2 kbps Data Rate • Simple to Apply with External Parts Count • Rugged, Surface-Mount Package with 130 mm2 Footprint