Preliminary
SF2229A
• Precision IF SAW Filter
• Hermetic 13.3 x 6.5 mm Surface-mount Case
• Complies with Directive 2002/95/EC (RoHS)
70 MHz
Pb
SAW Filter
Absolute Maximum Ratings
Rating
Value
+20
Units
dBm
VDC
°C
Maximum Incident Power in Passband
Maximum DC Voltage on any Non-ground Terminal
Storage Temperature Range in Tape and Reel
10
-40 to +85
Suitable for Lead-free Soldering - Maximum Soldering Profile
260 °C for 30 s
SM13365-12
Electrical Characteristics
Characteristic
Center Frequency
1 dB Bandwidth
3 dB Bandwidth
40 dB Bandwidth
Insertion Loss
Sym
Notes
Min
69.9
0.8
Typ
70.0
0.92
1.2
Max
Units
f
1
1
1
1
1
70.1
C
BW
1
MHz
dB
BW
1.1
3
BW
2.2
2.3
11.5
1.0
40
IL
9.2
Amplitude Ripple, f ± 0.3 MHz
dB
0.7
C
P-P
1, 2, 3
Group Delay Ripple, f ± 0.3 MHz
ns
350
400
C
P-P
Relative Attenuation:
10 to 65 MHz
45
45
55
55
dB
75 to 200 MHz
Operating Temperature Range
Frequency Temperature Coefficient
1
-40
+80
°C
-94
ppm/°C
Impedance Matching to 50 Ω Unbalanced Source/Load
Case Style
External L-C
SM13365-12 13.3 x 6.5 mm Nominal Footprint
RFM SF2229A YYWW
Lid Symbolization (YY = year, WW = week)
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.
3.
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.
4.
5.
6.
7.
Part to part absolute delay measurement records the absolute delay mean across 1 dB passband.
"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.
8.
US and international patents may apply.
www.RFM.com E-mail: info@rfm.com
©2010 by RF Monolithics, Inc.
Page 1 of 5
SF2229A - 5/17/10
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