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SF2137D Datasheet, PDF (1/4 Pages) RF Monolithics, Inc – 869.00 MHz SAW Filter
• Steep Roll-off SAW Filter for 869.00 MHz Unlicensed band
• Complies with Directive 2002/95/EC (RoHS)
• No Matching Required for Operation in 50 Environment Pb
Absolute Maximum Ratings
Rating
Input Power Level
DC Voltage Between any Two Pins
Operating Temperature Range
Storage Temperature Range in Tape and Reel
Value
17
3
-20 to +70
-40 to +85
Units
dBm
V
°C
°C
SF2137D
869.00 MHz
SAW Filter
Electrical Characteristics
Characteristic
Center Frequency
Insertion Loss, 868 to 870 MHz
Amplitude Ripple, p-p, 868 to 870 MHz
Attenuation Relative to 0 dB:
825 to 828 MHz
835 to 842 MHz
891 to 894 MHz
910 to 913 MHz
Source Impedance
Load Impedance
Case Style
Lid Symbolization, Y=year, WW=week, S=shift, dot=pin 1 indicator
Standard Reel Quantity
Reel Size 7 Inch
Reel Size 13 Inch
Electrical Connections
Connection
Terminals
Port 1
2
Port 2
5
Case Ground
All others
Sym
FC
IL
Notes
ZS
ZL
SM3838-6
Min
Typ
869.00
2.9
0.2
40
47
30
38
30
43
40
48
50
50
SM3838-6
785, YWWS
500 Pieces/Reel
3000 Pieces/Reel
Max
4.0
1.5
Units
MHz
dB


CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1. Unless noted otherwise, all specifications apply over the operating temperature range with filter soldered to the specified demonstration board with impedance
matching to 50  and measured with 50  network analyzer.
2. Unless noted otherwise, all frequency specifications are referenced to the nominal center frequency, fc.
3. Rejection is measured as attenuation below the minimum IL point in the passband. Rejection in final user application is dependent on PCB layout and external
impedance matching design. See Application Note No. 42 for details.
4. The design, manufacturing process, and specifications of this filter are subject to change.
5. US and international patents may apply.
6. RFM, stylized RFM logo, and RF Monolithics, Inc. are registered trademarks of RF Monolithics, Inc.
www.RFM.com E-mail: info@rfm.com
© 2009-2012 by RF Monolithics, Inc.
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SF2137D - 2/17/12