SF2172C Datasheet, PDF (1/5 Pages) RF Monolithics, Inc – 280 MHz SAW Filter

Preliminary
• Low Insertion Loss
• 5.0 X 5.0 mm Surface-Mount Case
• Single Ended Input and Output
• Complies with Directive 2002/95/EC (RoHS)
Pb
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Maximum DC Voltage Between any Two Terminals
Storage Temperature Range
Suitable for Lead-free Soldering - Maximum Soldering Temperature
Electrical Characteristics
Characteristic
Nominal Center Frequency
Insertion Loss
Passband Ripple, f_C ± 7.5 MHz
Passband Rippl2, f_C ± (7.5 to 8.5) MHz
1 dB Bandwidth
Group Delay Deviation, f_C ± 7.5 MHz
40 dB Bandwidth
Attenuation Referenced to IL_MIN
Fc ±(15 to 17) MHz
Fc ±(17 to 100) MHz
Operating Temperature Range
Case Style
Lid Symbolization (Y=year, WW=week, S=shift)
SF2172C
Value
Units
+13
dBm
30
VDC
-40 to +85
°C
260°C for 30 s
280 MHz
SAW Filter
SM5050-8
Sym
f_C
IL_MIN
BW₁
Notes
Min
Typ
Max
Units
1
280
MHz
1
8.8
11
dB
1
0.4
1.0
dB_P-P
0.7
2.0
dB_P-P
1
15
19.8
MHz
1
24
50
ns
29.5
31.0
MHz
10
40
dB
40
45
dB
-40
85
°C
SM5050-8 5 x 5 mm Nominal Footprint
RFM 852 YWWS
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. 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.
3. The design, manufacturing process, and specifications of this filter are subject to change.
4. Tape and Reel Standard ANSI / EIA 481.
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]
©2009 by RF Monolithics, Inc.
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SF2172C - 7/7/09