3V, QwikRadio® 433.92 MHz Receiver
The MICRF211 is a general purpose, 3V QwikRadio
Receiver that operates at 433.92MHz with typical
sensitivity of -110dBm.
The MICRF211 functions as a super-heterodyne
receiver for OOK and ASK modulation up to 10kbps.
The down-conversion mixer also provides image
rejection. All post-detection data filtering is provided on
the MICRF211. Any one-of-four filter bandwidths may
be selected externally by the user in binary steps, from
1.25kHz to 10kHz. The user need only configure the
device with a set of easily determined values, based
upon data rate, code modulation format, and desired
• –110 dBm sensitivity, 1kbps and BER 10E-02
• Image Rejection Mixer
• Frequency from 380MHz to 450MHz
• Low power, 6.0mA @ 433.92MHz, continuous on
data rates to 10kbps (Manchester Encoded)
• Analog RSSI Output
• No IF filter required
• Excellent selectivity and noise rejection
• Low external part count
–40° to +105°C
433.92 MHz, 1kHz Baud Rate Example
QwikRadio is a registered trademark of Micrel, Inc.
Certain of the QwikRadio ICs were developed under a development agreement with AIT of Orlando, FL.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com