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MICRF220 Datasheet(PDF) 1 Page - Micrel Semiconductor

Part # MICRF220
Description  300MHz to 450MHz, 3.3V ASK/OOK Receiver with RSSI and Squelch
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MICRF220 Datasheet(HTML) 1 Page - Micrel Semiconductor

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MICRF220
300MHz to 450MHz, 3.3V ASK/OOK Receiver
with RSSI and Squelch
com
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.
August 2010
9-082610-A
RadioTech@micrel.com
M999
General Description
The MICRF220 is a 300MHz to 450MHz super-
heterodyne, image-reject, RF receiver with automatic
gain control, ASK/OOK demodulator, analog RSSI
output, and integrated squelch features. It only requires
a crystal and a minimum number of external components
to implement. The MICRF220 is ideal for low-cost, low-
power, RKE, TPMS, and remote actuation applications.
The MICRF220 achieves
−110dBm sensitivity at a bit
rate of 1kbps with 0.1% BER. Four demodulator filter
bandwidths are selectable in binary steps from 1625Hz
to 13kHz at 433.92MHz, allowing the device to support
bit rates up to 20kbps. The device operates from a
supply voltage of 3.0V to 3.6V, and typically consumes
4.3mA of supply current at 315MHz and 6.0mA at
433.92MHz. A shutdown mode reduces supply current to
0.1μA typical. The squelch feature decreases the activity
on the data output pin until valid bits are detected while
maintaining overall receiver sensitivity.
Data sheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
Features
• –110dBm sensitivity at 1kbps with 0.1% BER
• Supports bit rates up to 20kbps at 433.92MHz
• 25dB image-reject mixer
• No IF filter required
• 60dB analog RSSI output range
• 3.0V to 3.6V supply voltage range
• 4.3mA supply current at 315MHz
• 6.0mA supply current at 434MHz
• 0.1µA supply current in shutdown mode
• Data output squelch until valid bits detected
• 16-pin QSOP package (4.9mm x 6.0mm)
• −40˚C to +105˚C temperature range
• 3kV HBM ESD Rating
Ordering Information
Part Number
Temperature Range
Package
MICRF220AYQS
–40°C to +105°C
16-Pin QSOP
Typical Application
or (408) 944-0800
433.92MHz, 1kbps Operation


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