Preliminary
SF2238E
• Low-loss RF SAW Filter
• Surface-mount 3.0 x 3.0 x 1.3 mm Package
• Complies with Directive 2002/95/EC (RoHS)
Absolute Maximum Ratings
Rating
Input Power Level
DC Voltage on any Non-ground Terminal
Operating Temperature Range
Storage Temperature Range
Solder Reflow Temperature, 10 seconds, 5 cycles maximum
Pb
2560 MHz
SAW Filter
Value
10
3
-30 to +85
-40 to +95
260
Units
dBm
V
°C
°C
°C
SM3030-6
Electrical Characteristics
Characteristic
Center Frequency
Maximum Insertion Loss, 2545 to 2575 MHz
Amplitude Ripple, 2545 to 2575MHz
VSWR, 2545 to 2575 MHz
Attenuation Referenced to 0 dB:
DC to 1100 MHz
1100 to 1880 MHz
1880 to 2280 MHz
2280 to 2420 MHz
2420 to 2460 MHz
2460 to 2490 MHz
2635 to 2655 MHz
2655 to 3100 MHz
3100 to 4000 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
Z
S
Z
L
37
31
43
40
30
10
20
41
29
42.5
42.5
46
43.5
43
23
45
45
37
50
50
SM3030-6 3.0 x 3.0 mm Nominal Footprint
972, YWWS
500 Pieces/Reel
3000 Pieces/Reel
Ω
dB
Sym
F
C
IL
Notes
Min
Typ
2560
2.4
0.8
1.3:1
Max
4.0
2.0
2.3:1
Units
MHz
dB
dB
P-P
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
©2010 by RF Monolithics, Inc.
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SF2238E - 11/30/10
RFM [ RF MONOLITHICS, INC ]
