SF2045A Datasheet, PDF (1/5 Pages) RF Monolithics, Inc – 140 MHz SAW Filter

• Designed for IF Applications
• Excellent Size-to-Performance Ratio
• Hermetic 13.3 x 6.5 mm Surface-mount Case
• Complies with Directive 2002/95/EC (RoHS) Pb
SF2045A
140 MHz
SAW Filter
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Max. DC voltage between any 2 terminals
Storage Temperature Range
Suitable for lead-free soldering - Max. Soldering Profile
Value
Units
+10
dBm
30
VDC
-40 to +85
°C
260°C for 30 s
Electrical Characteristics
Characteristic
Center Frequency (3dB points) at 25°C
Passband
Insertion Loss at fc
1 db Passband
3 db Passband
Amplitude Ripple over 1 dB BW
Phase Linearity over 1 dB BW
Group Delay Variation over 1 dB BW
Absolute Group Delay
Rejection
35 dB BW
10 - 120 MHz
120 - 130 MHz
150 - 1000 MHz
Operating Temperature Range
Frequency Temperature Coefficient
Sym
f_C
IL
BW₁
BW₃
GDV
T_A
FTC
Notes
1
1, 2
1, 2, 3
1
Min
139.60
8
10
40
40
40
-40
SM13365-12
Typ
140.000
7.7
9.8
10.8
0.4
2.7
50
1.057
13.9
52
47
45
25
-94
Max
140.40
11
0.8
8
100
15
85
Units
MHz
dB
MHz
dB_P-P
°_P-P
ns_P-P
µsec
MHz
dB
°C
ppm/°C
Impedance Matching to 50Ω Unbalanced
Case Style
Lid Symbolization (YY = year, WW = week)
External L-C
SM13365-12 13.3 x 6.5 mm Nominal Footprint
RFM SF2045A YYWW
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. The design, manufacturing process, and specifications of this filter are subject to change.
3. 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.
4. US and international patents may apply.
5. Electrostatic Sensitive Device. Observe precautions for handling.
RF Monolithics, Inc. Phone: [phone]
Fax: [phone]
RFM Europe
Phone: [phone]
Fax: [phone]
©2001 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: [e-mail]
http://www.rfm.com
SF2045A-051007
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