MICRF221 3.
3V, QwikRadio® 850 MHz to 950 MHz Receiver General Description The MICRF221 is a third generation QwikRadio® receiver, offering all the benefits of Micrel's earlier QwikRadio® products with significant improvements, including: enhanced sensitivity, automatic duty-cycle feature and RSSI output.
The MICRF221 is a super-heterodyne receiver, designed for OOK and ASK modulation.
The downconversion mixer also provides image rejection.
The MICRF221 receiver provides a SLEEP Mode for duty-cycle operation and an enhanced, customer programmable "WAKE" function.
These features are further combined into a wholly integrated "self-polling" scheme that is ideal for low and ultra-low power appli...

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