SF2140A-1
• Excellent Size-to-Performance Ratio
• Hermetic 13.3 X 6.5 mm Surface-Mount Case
• Complies with Directive 2002/95/EC (RoHS)
Absolute Maximum Ratings
Rating
Input Power Level
Storage Temperature Range
Operating Temperature Range
Suitable for Lead-free Soldering - Maximum Soldering Profile
Pb
Value
+10
-40 to +85
-30 to +80
Units
dBm
°C
°C
140.0 MHz
SAW Filter
260 °C for 30 s
SMP-53
Electrical Characteristics
Characteristic
Nominal Center Frequency
Maximum Insertion Loss at f
C
1 dB Bandwidth
3 dB Bandwidth
35 dB Bandwidth
Passband Ripple, 130.8 to 149.2 MHz
Group Delay Ripple, 130.8 to 149.2 MHz
Absolute Group Delay
Input VSWR, 130.8 to 149.2 MHz
Output VSWR, 130.8 to 149.2 MHz
Temperature Coefficient
Attenuation Referenced to Insertion Loss at f
C
10 to 90 MHz
90 to 120 MHz
120 to 126.8 MHz
153.2 to 160 MHz
160 to 190 MHz
190 to 800 MHz
Source/Load Impedance
Case Style
Lid Symbolization (YY=year, WW=week) See note 4
35
40
35
35
40
35
49
47
50
45
53
62
50
SMP-53 13.3 X 6.5 mm Nominal Footprint
RFM SF2140A-1 YYWWS##
ohms
dB
Sym
f
C
IL
Notes
1
Min
Typ
140.0
10.3
Max
11.0
Units
MHz
dB
MHz
MHz
18.4
19.6
20.8
21.4
25.2
0.8
115
1.0
1.7
1.8
2.8
2.3
26.4
1.0
160
MHz
dB
ns
µs
dB
dB
ppm/°C
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
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.
Unless noted otherwise, all frequency specifications are referenced to the nominal center frequency, fc.
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.
"LRIP" or "L" after the part number indicates "low rate initial production" and "ENG" or "E" indicates "engineering prototypes."
The design, manufacturing process, and specifications of this filter are subject to change.
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.
US and international patents may apply.
RFM, stylized RFM logo, and RF Monolithics, Inc. are registered trademarks of RF Monolithics, Inc.
www.RFM.com E-mail: info@rfm.com
©2009 by RF Monolithics, Inc.
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SF2140A-1 7/27/09
RFM [ RF MONOLITHICS, INC ]
