SF2254E Datasheet, PDF (1/4 Pages) RF Monolithics, Inc – 872.5 MHz SAW Filter

• Low-loss RF SAW Filter
• Miniature 3 x 3 mm SMD Package
• Complies with Directive 2002/95/EC (RoHS)
Pb
Absolute Maximum Ratings
Rating
Input Power Level
DC Voltage on any Non-grounded Terminal
Operating Temperature Range
Storage Temperature Range in Tape and Reel
Maximum Soldering Profile, 5 cycles/10 seconds maximum
Electrical Characteristics
Characteristic
Center Frequency
Insertion Loss, 865 to 880 MHz
Amplitude Ripple, 865 to 880 MHz
VSWR, 865 to 880 MHz
Attenuation, Referenced to 0 dB:
10 to 820 MHz
820 to 835 MHz
912 to 927 MHz
927 to 972 MHz
972 to 1300 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
Input
2
Output
5
Case Ground
All others
SF2254E
Value
+10
3
-30 to +85
-40 to +85
265
Units
dBm
V
°C
°C
°C
872.5 MHz
SAW Filter
SM3030-6
Sym Notes
Min
f_C
IL
Typ
872.5
2.7
0.7
1.5:1
Max
3.5
1.5
2.0:1
40
45
35
40
25
32
35
40
40
45
Z_S
50
Z_L
50
SM3030-6 3.0 x 3.0 mm Nominal Footprint
A01, YWWS
500 Pieces/Reel
3000 Pieces/Reel
Units
MHz
dB
dB_P-P
dB
Ω
Ω
50 ohm
2
5
S A W F ilte r
1,3,4,6
50 ohm
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 Ω and measured with 50 Ω 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. Either Port 1 or Port 2 may be used for either input or output in the design. However, impedances and impedance matching may vary between Port 1 and Port
2, so that the filter must always be installed in one direction per the circuit design.
6. US and international patents may apply.
7. RFM, stylized RFM logo, and RF Monolithics, Inc. are registered trademarks of RF Monolithics, Inc.
www.RFM.com E-mail: [e-mail]
©2010 by RF Monolithics, Inc.
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SF2254E - 11/18/10