Preliminary
SF1114A-1
•
•
•
•
•
Designed for WLL Receiver Applications
Low Insertion Los s
Hermetic SMP-75 Surface-Mount Case
Unbalanced Input and Output
Complies with Directive 2002/95/EC (RoHS)
137.2 MHz
SAW Filter
Pb
Absolute Maximum Ratings
Rating
Value
+10
Units
dBm
VDC
°C
Maximum Incident Power in Passband
Max. DC voltage between any 2 terminals
Storage Temperature Range
30
-40 to +85
Suitable for lead-free soldering - Max. Soldering Profile
260°C for 30 s
SMP-75
Electrical Characteristics
Characteristic
Sym
Notes
Min
Typ
Max
Units
f
1
Nominal Center Frequency
137.200
14
MHz
dB
C
Passband
Insertion Loss at fc
1 db Passband
15.5
IL
BW
±825
±900
±1050
150
30
1
kHz
BW
3 db Passband
Group Delay Variation over fc ±825 kHz
fc-1.665 to fc-1.5 and fc+1.5 to fc+1.665 MHz
fc-8.0 to fc-1.665 and fc+1.665 to fc+8.0 MHz
fc±8.0 MHz
1, 2
±1000
3
ns
GDV
200
+85
P-P
Rejection
20
40
45
42
1, 2, 3
1
dB
°C
50
Ultimate
55
T
Operating Temperature Range
-10
A
Impedance Matching to 50 W Unbalanced
Case Style
External L-C
SMP-75 19 x 6.5 mm Nominal Footprint
RFM SF1114A-1 YYWW
Lid Symbolization (YY = year, WW = week)
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 W
and measured with 50 W network analyzer.
2. Unless noted otherwise, all frequency specifications are referenced to the nominal center
frequency, fc.
Electrical Connections
Connection
Terminals
Port 1 Hot
10
Port 1 Gnd Return
Port 2 Hot
1
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
6
Port 2 Gnd Return
Case Ground
All others
5. The design, manufacturing process, and specifications of this filter are subject to change.
6. 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 fil-
ter must always be installed in one direction per the circuit design.
7. US and international patents may apply.
8. Electrostatic Sensitive Device. Observe precautions for handling.
RF Monolithics, Inc.
RFM Europe
Phone: (972) 233-2903
Phone: 44 1963 251383
Fax: (972) 387-9148
Fax: 44 1963 251510
E-mail: info@rfm.com
http://www.rfm.com
SF1114A-1-121504
Page 1 of 3
©2001 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
RFM [ RF MONOLITHICS, INC ]
