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December 1998b MICRF011
MICRF011 Micrel
MICREL INC. 1849 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL + 1 (408) 944-0800 FAX + 1 (408) 944-0970 WEB http://www.micrel.com
This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights
of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc. This is preliminary
information and a final specification has not been completed. Before making any final design determination, consult with Micrel for final specifications.
©1998 Micrel Incorporated
Typical Application
The Figure below illustrates a typical application for the MICRF011 UHF Receiver IC. Operation in this example is at
385.5MHz, and may be customized by selection of the appropriate reference frequency (CR1), and adjustment of the antenna
length. The value of C4 would also change, if the optional input filter is used. Changes from the 1kbps data rate may require
a change in the value of R1. The Bill of Materials is shown in the accompanying chart.
Bill of Materials
Item Part Number Manufacturer Description
U1 MICRF011 Micrel UHF Receiver
U2 HT-12D Holtek Logic decoder
CR1 CSA6.00MG Murata 6.00MHz Cer. Res.
D1 SSF-LX100LID Lumex RED LED
R1 Bourns 68k, 1/4W ,5%
R2 Bourns 1k,1/4W, 5%
C1 Panasonic 4.7µF, Dip Tant. Cap
C3 Panasonic 0.47µF, Dip Tant. Cap
C2 Panasonic 2.2µF, Dip Tant. Cap
C4 Panasonic 8.2pF, COG Cer. Cap
Vendor Telephone Fax
Bourns (909) 781-5500 (909) 781-5273
Holtek (408) 894-9046 (408) 894-0838
Lumex (800) 278-5666 (847) 359-8904
Murata (800) 241-6574 (770) 436-3030
Panasonic (201) 348-7000 (201) 348-8164
Typical MICRF011 Application
385.5 MHz Operating Frequency
1kbps Operation
6-Bit Address Decode
