RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-9148
E-mail: info@rfm.com
Page 1 of 3
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
http://www.rfm.com
2001 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
SF1082A-121504
Electrical Characteristics
Characteristic
Sym
Notes
Min
Typ
Max
Units
Nominal Center Frequency
f
C
1
125.000
MHz
Passband
Insertion Loss at fc
IL
6.0
8.0
dB
3 dB Passband
BW
3
1, 2
275
440
kHz
Amplitude Ripple over fc 75 kHz
0.3
dB
P-P
Group Delay Variation over fc75 kHz
GDV
100
ns
P-P
Rejection
fc-7.5 to fc-6.0 and fc+6.0 to fc+7.5 MHz
1, 2, 3
20
40
dB
Ultimate
>40
Operating Temperature Range
T
A
1
-40
+85
C
Impedance Matching to 50
unbalanced
External L-C
Case Style
SM9171-10 9.1 x 7.1 mm Nominal Footprint
Lid Symbolization (XX = 2 character date code)
RFM SF1082A XX
SM9171-10
Designed for GSM BTS Transmitter Applications
Low Insertion Loss
9.1 x 7.1 mm Surface-Mount Case
Unbalanced Input and Output
Complies with Directive 2002/95/EC (RoHS)
Absolute Maximum Ratings
Rating
Value
Units
Maximum Incident Power in Passband
+10
dBm
Max. DC voltage between any 2 terminals
30
VDC
Storage Temperature Range
-40 to +85
C
Suitable for lead-free soldering - Max Soldering Profile
260C for 30 s
125.000 MHz
SAW Filter
SF1082A
Notes:
1.
Unless noted otherwise, all specitication apply over the operating temperature range with filter soldered to the specified demonstration board with
impedanced matching to 50
network analyzer.
2.
Unless noted otherwise, all frequency specitications 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.
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.
7.
US and international patents may apply.
8.
RFM, stylized RFM logo, and RF Monolithics, Inc. are registered trademarks of RF Monolithics, Inc.
9.
Electrostatic Sensitive Device. Observe precautions for handling.
Connection
Terminals
Port 1 Hot
1
Port 1 Gnd Return
4
Port 2 Hot
6
Port 2 Gnd Return
9
Case Ground
All others
Electrical Connections
Pb
125.000 MHz SAW Filter
RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-9148
E-mail: info@rfm.com
Page 3 of 3
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
http://www.rfm.com
2001 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
SF1082A-121504
Case Dimensions
Dimension
mm
Inches
Min
Nom
Max
Min
Nom
Max
A
8.86
9.09
9.40
0.349
0.358
0.370
B
6.88
7.11
7.40
0.271
0.280
0.291
C
1.91
2.00
0.075
0.079
D
0.99
0.039
E
0.79
0.031
H
1.0
0.039
P
2.54
0.100
10-Terminal Ceramic Surface-Mount Case
9.1 x 7.1 mm Nominal Footprint
SM9171-10 Case
B
A
C
H
E
(10 Places)
P
(10 Places) D
6
5
4
3
2
1
10
9
8
7
1
10
9
6
5
4
2
3
8
7
Electrical Connections
Connection
Terminals
Port 1
Input or Return
6
Return or Input
5
Port 2
Output or Return
1
Return or Output
10
Ground
All others
Single Ended Operation
Return is ground
Differential Operation
Return is hot
Materials
Solder Pad
Termination
Au plating 30 - 60 inches (76.2-152 m) over 80-
200 inches (203-508 m) Ni.
Lid
Fe-Ni-Co Alloy Electroless Nickel Plate (8-11%
Phosphorus) 100-200 inches Thick
Body
Al
2
O
3
Ceramic
Pb Free
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