SF1133A 246 MHz SAW Filter
Absolute Maximum Ratings
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Electrostatic Sensitive Device. Observe precautions for handling.
RF Monolithics, Inc.
4347 Sigma Road
Dallas, Texas 75244
USA
Characteristic
Nominal Center Frequency
Passband
Rejection
Operating Temperature Range
Impedance Matching to 50
Impedance Matching to 200
Case Style
Lid Symbolization (YY = year, WW = Week)
Rating
Maximum Incident Power in Passband
Max. DC voltage between any 2 terminals
Storage Temperature Range
Max Soldering Profile
Designed For GSM BTS Receiver IF
Compatible with National Semiconductor Chip Set
Very Flexible Impedance Matching
Unbalanced or Balanced Input or Output
Unless noted otherwise, all specifications apply over the operating temperature range with filter soldered to the specified
demonstration board with impedance matching to 50
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.
Copyright 1999, RF Monolithics Inc.
fc-800 to fc-600 and fc+600 to fc+800 kHz
Group Delay Variation over fc 100 kHz
Amplitude Ripple over fc 100 kHz
unbalanced
balanced
fc+800 kHz to fc+17 MHz
fc+17 MHz to fc+80 MHz
fc-30 MHz to fc-800 kHz
fc-80 MHz to fc-30 MHz
Insertion Loss at fc
Home page:
1 dB Passband
PRELIMINARY
Phone: +1(972)233-2903
e-mail:
Fax: +1(972)387-8148
-40 to +85
and measured with 50
Value
265 C for 10 s
+15
30
info@rfm.com
www.rfm.com
Sym
GDV
BW
T
Units
fc
IL
dBm
VDC
A
SM9171-10 9.1 x 7.1 mm Nominal Footprint
C
1
Min
-35
network analyzer.
100
20
30
30
35
35
Electrical Connections
RFM SF1133A YYWW
246.000
Typ
External L-C
External L-C
Port 1 Return
Port 2 Return
Case Ground
Connection
Port 1 Hot
Port 2 Hot
Max
500
+85
7.0
1.0
European Sales Office
44 1963 251383
44 1963 251510
Terminals
10
1
5
6
All Others
Units
dB
ns
MHz
SF1133A 7/22/1999 R
kHz
dB
dB
C
P-P
P-P
Notes
1, 2, 3
1, 2
1
1