SF1143B-4
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Designed for SDARS IF Receiver
Low Insertion Loss
5.0 X 7.0 mm Surface-Mount Case
Differential Input and Output
Complies with Directive 2002/95/EC (RoHS)
Pb
Value
+10
30
-40 to +85
265°C for 10 s
315.00 MHz
SAW Filter
Units
dBm
VDC
°C
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Max. DC voltage between any 2 terminals
Storage Temperature Range
Max Soldering Profile
SMP-03-S
Electrical Characteristics
Characteristic
Nominal Center Frequency
Passband
Insertion Loss at fc
1dB Passband
Fast Amplitude Ripple over fc ±6.35 MHz
Group Delay Variation over fc ±6.35 MHz
Rejection
100 to fc-10.3 and fc+10.3 to fc+100 MHz
Operating Temperature Range
Differential Input and Output Impedance
Case Style
Lid Symbolization (YY=year, WW=week, S=shift) See note 4
Sym
f
C
IL
BW
1
GDV
T
A
Notes
1
Min
Typ
315.000
15.1
±7.05
23
45
Max
17.0
1.5
200
+85
Units
MHz
dB
MHz
dB
P-P
ns
P-P
dB
°C
±6.35
1, 2
1, 2, 3
1
38
-40
6
250 ohms
SMP-03-S 7 x 5 mm Nominal Footprint
RFM SF1143B-4 YYWWS
Electrical Connections
Connection
Terminals
Port 1 Hot
10
Port 1 Ground Return or Hot
1
Port 2 Hot
5
Port 2 Ground Return or Hot
6
Case Ground
All Others
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
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. Unless noted otherwise, all frequency specifications are referenced to the nominal center frequency, fc.
3. 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. "LRIP" or "L" after the part number indicates "low rate initial production" and "ENG" or "E" indicates "engineering prototypes."
5. The design, manufacturing process, and specifications of this filter are subject to change.
6. Tape and Reel Standard ANSI / EIA 481.
7. 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.
9. RFM, stylized RFM logo, and RF Monolithics, Inc. are registered trademarks of RF Monolithics, Inc.
10. ©Copyright 1999, RF Monolithics Inc.
1.
www.RFM.com
E-mail: info@rfm.com
©2008 by RF Monolithics, Inc.
Page 1 of 3
SF1143B-4 - 3/28/08
RFM [ RF MONOLITHICS, INC ]
