
RF Monolithics, Inc.
RFM Europe
2001 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
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
SF1122A-081501
Page 1 of 3
Electrical Characteristics
Characteristic
Sym
f
C
IL
BW
3
BW
5
Notes
1
Min
Typ
Max
Units
MHz
dB
Nominal Center Frequency
Passband
190.000
9.5
±675
±735
Insertion Loss at fc
3 db Passband
5 db Passband
10.5
1, 2
kHz
±630
Amplitude Ripple over fc±504 kHz
Group Delay Dev. fc±630 kHz
1.5
1,000
dB
P-P
nsec
Rejection
fc±1.25 MHz
Ultimate
1, 2, 3
35
dB
45
Operating Temperature Range
T
A
1
-30
+80
°C
SM9171-10
Designed for CDMA BTS Applications
Low Insertion Loss
9.1 x 7.1 mm Surface-mount Case
Single Ended Input and Output
Absolute Maximum Ratings
Rating
Value
+10
30
-40 to +85
Units
dBm
VDC
°C
Maximum Incident Power in Passband
Max. DC voltage between any 2 terminals
Storage Temperature Range
Max. Soldering Profile
265°C for 10 s
190 MHz
SAW Filter
SF1122A
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
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.
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.
US and international patents may apply.
Electrostatic Sensitive Device. Observe precautions for handling.
2.
3.
4.
5.
6.
7.
8.
Connection
Port 1 Hot
Hot or Port 1 Gnd Return
Port 2 Hot
Hot or Port 2 Gnd Return
Case Ground
Terminals
1
10
6
5
All others
Electrical Connections
Impedance Matching to 50
Unbalanced
Case Style
Lid Symbolization (YY = year, WW = week)
External L-C
SM9171-10 9.1 x 7.1 mm Nominal Footprint
RFM SF1122A YYWW