MICRF211

3V, QwikRadio

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

March 2007

M9999-030107

(408) 944-0800

General Description

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

duty-cycle operation.

Features

• –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

Ordering Information

Part Number

Temperature Range

Package

MICRF211AYQS

–40° to +105°C

16-Pin QSOP

_______________________________________________________________________________________________

Typical Application

433.92 MHz, 1kHz Baud Rate Example