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1. General Description
The MRF318R is a UHF ASK receiver IC in a SOP-8 package which operates at 300MHz to 450MHz with typical receiving sensitivity of -114dBm. The MRF318R is a Weaver architecture receiver for ASK and OOK modulation such as pulse width modulation, variable pulse modulation, Manchester modulation and so on. The Weaver receiver also provides image rejection function to remove the image band and selects the desired signal. The high integrated MRF318R uses the 8-Lead Small Outline Package (SOP-8), also no extra external component is required except one capacitor (CTH), reference crystal and antenna matching network. The MRF318R additionally provides the Shut Down function pin (SHDN) and CTH pin, the CTH with different external capacitor can satisfy various data profile. 

2. Fearures
● 300MHz to 450MHz Frequency Range
● -114dBm High Sensitivity, 1kbps and BER 10E-2 @315MHz and 433.92MHz
● Image Rejection Function
● Low Power Consumption
● Excellent Selectivity and Noise Rejection
● No External IF Filter Required
● Low External part count
● SOP-8 Package Type for MRF318R

3. Applications
※ Automotive Remote Keyless Entry (RKE)
※ Remote Control System
※ Access Control System
※ Home Automation
※ Toys