SF2138B-1
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Designed for SDARS IF Receiver
Low Insertion Loss
5.0 x 7.0 mm Surface-mount Case
Differential or Single-ended Input and Output
Complies with Directive 2002/95/EC (RoHS)
Pb
144.132 MHz
SAW Filter
Units
+10
30
-40 to +85
-45 to +125
dBm
VDC
°C
°C
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Maximum DC Voltage Between any Two Terminals
Storage Temperature Range
Operable Temperature Range
Max Soldering Profile
Value
265 °C for 10 s
SMP-03
Characteristic
Nominal Center Frequency
Passband Width @ +25 °C
B 1dB
B 15dB
B 30dB
Minimum Insertion Loss, including the Matching Network
Terminating source impedance
Terminating load impedance
Amplitude Ripple
TDM1 (137.882 - 142.382 MHz)
COFDM (141.882 - 146.182 MHz)
TDM2 (145.882 - 150.382 MHz)
Attenuation Relative to the Insertion Loss at Center Frequency:
122.882 ..... 127.882 MHz
127.882 ..... 132.882 MHz
154.137 ..... 159.137 MHz
159.137 ..... 162.882 MHz
162.882 ..... 177.882 MHz
Group Delay Ripple:
TDM1 (137.882 - 142.382 MHz)
COFDM (141.882 - 146.182 MHz)
TDM2 (145.882 - 150.382 MHz)
Specification Temperature Range
Case Style
Lid Symbolization, YY=year, WW=week, S=shift
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Sym
f
C
BW
1
BW
15
BW
30
IL
MIN
Notes
1
Min
137.882
12.5
Typ
144.132
Max
150.382
1
13.3
15.9
16.2
16.9
18.2
13.7
16.5
ZS = 200 ohms (differential)
ZL = 1.5K ohms (differential)
1
0.5
1
1.7
1.5
1.7
Units
MHz
dB
MHz
MHz
MHz
dB
dB
P-P
1, 3
45
43
38
43
48
50
47
42
47
53
30
28
30
dBc
T
A
1
6
150
100
ns
P-P
150
-40
+105
°C
SMP-03 7 x 5 mm Nominal Footprint
RFM SF2138B-1 || YYWWS
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.
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.
Tape and Reel Standard ANSI / EIA 481.
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.
Murata, stylized Murata logo, and Murata N.A., Inc. are registered trademarks of Murata Manufacturing Co., Ltd.
Electrostatic Sensitive Device. Observe precautions for handling.
Copyright © Murata Manufacturing Co., Ltd. All rights reserved. 2012
SF2138B-1 (R) 8/24/17
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