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© 2008-2012 by RF Monolithics, Inc. SF2055A - 5/10/12
Electrical Characteristics
Electrical Connections
Characteristic Sym Notes Min Typ Max Units
Center Frequency fO240.05 MHz
Insertion Loss at fO5.0 dB
3 dB Bandwidth ±150 kHz
In-band Ripple, fO ± 100 kHz 0.5 dBP-P
Amplitude Variation, fO ±1 00 kHz 0.5 1 dB
Relative Group Delay, fO ± 100 kHz 0.5 µsP-P
Attenuation: fO-600 kHz 36 40
dB
fO+600 kHz 36 46
fO-1.2 MHz 40 48
fO+1.2 MHz 38 46
fO-21.6 MHz 60 72
fO+21.6 MHz 60 68
10 to 215 MHz 20 67
265 MHz to 2 GHz 20 24
I/O Impedance 50
Absolute Delay, fO±100 kHz 1.85 ±0.6 µs
Case Style SM1154-14 11.5 x 4.0 mm Nominal Footprint
Lid Symbolization
(YY=year, WW=week, S=shift, ##=sequence code)
dot=pin 1 indicator
SF2055A, YYWWS##
Standard Reel Quantity Reel Size 7 Inch 500 Pieces/Reel
Reel Size 13 Inch 2000 Pieces/Reel
Connection Input Output Ground
Terminals 2 9 All others
SM1154-14
• Low-loss SAW Filter
• 11.5 X 4.0 mm Surface-Mount Case
• Complies with Directive 2002/95/EC (RoHS)
Absolute Maximum Ratings
Rating Value Units
Input Power Level 10 dBm
DC Voltage 0 V
Operating Temperature Range 0 to +60 °C
Storage Temperature Range -40 to +85 °C
240.050 MHz
SAW Filter
SF2055A
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 and measured with 50 network analyzer.
2. Unless noted otherwise, all frequency specifications are referenced to the nominal center frequency, fc.
3. The design, manufacturing process, and specifications of this filter are subject to change.
4. US and international patents may apply.
5. RFM, stylized RFM logo, and RF Monolithics, Inc. are registered trademarks of RF Monolithics, Inc.
Pb
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
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© 2008-2012 by RF Monolithics, Inc. SF2055A - 5/10/12
CH1 S11 1 U FS
CENTR 240 . 050 MHz SPAN 16 . 000 MHz
Cor
PRm
CH2 S21 LOG 10 dB/ REF -30 dB
CENTER 240 . 050 000 MHz SPAN 16 . 000 000 MHz
Cor
PRm
CH3 S22 1 U FS
CENTR 240 . 050 MHz SPAN 16 . 000 MHz
Cor
31 Oct 2006 11:24:48
1
1 : 36 . 385 -6 . 7734 97 . 883 pF
240 . 050 000 MHz
1
2
34
1 : 0 . 0000 dB 0 . 000 000 MHz
REF=1
CH2 Markers
BW : . 470834 MHz
cent : 240 . 058572 MHz
Q: 509 . 86
1_ loss : -3 . 9442 dB
1
1 : 41 . 229 -8 . 1543 81 . 308 pF
240 . 050 000 MHz
SF2055A
Demo #1
Full
Full
( O p t i o n a l
c o m p o n e n t )
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© 2008-2012 by RF Monolithics, Inc. SF2055A - 5/10/12
CH1 S21 DEL 200 ns/ REF 2.4 us
CH1 CENTER 240 . 050 000 MHz SPAN . 400 000 MHz
C
Smo
PRm
CH2 S21 LOG 10 dB/ REF -30 dB
CH2 CENTER 240 . 050 000 MHz SPAN 16 . 000 000 MHz
Cor
PRm
31 Oct 2006 11:26:58
12
3
3 : 11 . 563 ns - . 200 000 MHz
REF=2
CH1 Markers
mean : 1 . 9877 us
s . dev : 29 . 515 ns
p-p : 94 . 235 ns
1
2
3
3 : - . 38180 dB - . 200 000 MHz
REF=2
CH2 Markers
mean : -4 . 1055 dB
s . dev : . 17190 dB
p-p : . 61840 dB
SF2055A
Demo #1
Full
Full
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© 2008-2012 by RF Monolithics, Inc. SF2055A - 5/10/12
14-Terminal Ceramic Surface-Mount Case
11.5 x 4.0 mm Nominal Footprint
Recommended PCB Footprint
SM1154-14 Case
1
2
3
4
5
6
7
14
13
12
11
10
9
8
B
A
C
D
14
13
12
11
10
9
8
H
E
F
G
1
2
3
4
5
6
7
0.034 TYP.
(0.86)
0.050
(1.27)
TYP.
0.067 TYP.
(1.70)
0.190
(4.84)
0.334 REF.
(8.48)
Case Dimensions
Dimension mm Inches
Min Nom Max Min Nom Max
A11.4 11.5 11.6 .442 0.450 0.458
B3.8 4.0 4.2 .150 0.157 .166
C1.4 1.6 1.8 .057 0.063 .069
D0.041 0.047 0.053
E0.76 0.030
F1.27 0.050
G1.27 0.050
H0.1 0.004
Electrical Connections
Connection Terminals
Input 2
Output 9
Ground All Others
Materials
Solder Pad
Plating 0.3 to 1.0 µm Gold over 1.27 to 8.89 µm Nickel
Lid Plating 2.0 to 3.0 µm Nickel
Body Al2O3 Ceramic
Pb Free
RFM
SF2055A
YYWWS##
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© 2008-2012 by RF Monolithics, Inc. SF2055A - 5/10/12
Tape and Reel Specifications
“B”
Nominal Size Quantity Per Reel
Inches millimeters
7 178 500
13 330 2000
Tape and Reel Standard Per ANSI / EIA 481
USER DIRECTION OF FEED
COMPONENT ORIENTATION and DIMENSIONS
Carrier Tape Dimensions
Ao 4.55 mm
Bo 12.04 mm
Ko 2.13 mm
Pitch 8.00 mm
W24.00 mm
PIN #1
See Detail "A"
13.0
20.2
2.0
12.0
100 REF.
"B" REF.
25 mm
