MICRF022BM-FS24 Micrel Inc, MICRF022BM-FS24 Datasheet - Page 14

• Manufacturer Part Number: MICRF022BM-FS24
• Description: IC RECEIVER ASK 300-440MHZ 8SOIC
• Manufacturer: Micrel Inc

Specifications of MICRF022BM-FS24

• Frequency: 300MHz ~ 440MHz
• Sensitivity: -97dBm
• Data Rate - Maximum: 10 kbps
• Modulation Or Protocol: ASK, OOK
• Applications: RKE
• Current - Receiving: 2.2mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 4.75 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Memory Size: -

Applications Example
315MHz Receiver/Decoder Application
Figure 7 illustrates a typical application for the MICRF002
UHF Receiver IC. This receiver operates continuously (not
duty cycled) in sweep mode, and features 6-bit address
decoding and two output code bits.
Bill of Materials
Notes:
1. Vishay Tel: [phone]
2. Murata Tel: [phone], Fx: [phone]
3. Lumex Tel: [phone], Fx: [phone]
5. Micrel, Inc.: [phone]
5. Holtek Tel: [phone], Fx: [phone]
Micrel, Inc.
July 2008
Item
CR1
1in of 30mil trace
C1
C2
C3
C4
D1
R1
R2
U1
U2
pcb foil inductor
Supply
8.2pF, 16.6nH
Optional Filter
Input
+5V
(Analog)
Ground
SSF-LX100LID
Part Number
RF
CSA6.00MG
MICRF002
HT-12D
Baseband
(Digital)
Ground
C1
4.7µF
C4
antenna (11.6in)
0.4λ monopole
L1
2.2µF
C2
Manufacturer
Figure 7. 315MHz, 1kbps On-Off Keyed Recwiver/Decoder
Micrel, Inc.
Murata
Vishay
Vishay
Vishay
Vishay
Lumex
Vishay
Holtek
SEL0
SEL0
VSSRF
VSSRF
ANT
VDDRF
VDDBB
CTH
NC
(5)
(1)
(1)
(1)
(1)
(3)
(1)
(2)
U1 MICRF002
(4)
REFOSC
WAKEB
VSSBB
SWEN
CAGC
SHUT
SEL1
DO
14
4.8970MHz
300-440MHz QwikRadio
Y1
Operation in this example is at 315MHz, and may be
customized by selection of the appropriate frequency
reference (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.
4.7µF, Dipped Tantalum Capacitor
2.2µF, Dipped Tantalum Capacitor
4.7µF, Dipped Tantalum Capacitor
8.2pF, COG Ceramic Capacitor
6.00MHz, Ceramic Resonator
4.7µF
68k, 1/4W, 5%
Logic Decoder
1k, 1/4W, 5%
Description
RED LED
address
6-bit
®
A0
A1
A2
A3
A4
A5
A6
A7
VSS
U2 HT-12D
ASK Receiver
OSC1
OSC2
VDD
D11
D10
DIN
VT
D9
D8
68k
R2
1k
R1
MICRF002/RF022
M9999-070808
Code Bit 0
Code Bit 1
Qty.
1
1
1
1
1
1
1
1
1
1