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MICRF007 Datasheet(PDF) 14 Page - Micrel Semiconductor

Part # MICRF007
Description  QwikRadio Low-Power UHF Receiver
PDF  16 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MICRF007 Datasheet(HTML) 14 Page - Micrel Semiconductor

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MICRF007
Micrel
MICRF007
14
December 2000
SEL0
VSSRF
REFOSC
ANT
CAGC
VDD
SHUT
CTH
DO
C2
2.2
µF
4.8970MHz
Y1
U1 MICRF002
4.7
µF
Optional Filter
8.2pF, 16.6nH
pcb foil inductor
1in of 30mil trace
C4
L1
+5V
Supply
Input
C1
4.7
µF
A0
VDD
A1
VT
A2
OSC1
A3
OSC2
A4
DIN
A5
D11
A6
D10
A7
D9
U2 HT-12D
VSS
D8
R1
68k
R2
1k
Code Bit 0
Code Bit 1
RF
(Analog)
Ground
Baseband
(Digital)
Ground
0.4
monopole
antenna (11.6in)
6-bit
address
Figure 7a. 315MHz, 1kb/s On-Off Keyed Receiver/Decoder
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Figure 7b. Bill of Material
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Figure 7c. Component Vendors
315.0MHz Receiver/Decoder Application
Figure 7a illustrates a typical application for the MICRF007
UHF Receiver IC. This receiver operates continuously (not
duty cycled), and features 6-bit address decoding and two
output code bits.
Operation in this example is at 315.5MHz, and may be
customized by selection of the appropriate frequency refer-
ence (Y1), and adjustment of the antenna length. The value
of C4 would also change if the optional input filter is used.
Changes from the 1kb/s data rate may require a change in the
value of R1. A bill of materials accompanies the schematic.



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