RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-8148
E-mail: info@rfm.com
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
http://www.rfm.com
1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
SF1081A-1 112904
Electrical Characteristics
Characteristic
Sym
Notes
Min
Typ
Max
Units
Nominal Center Frequency
f
C
1
71.000
MHz
Passband
Insertion Loss at fc
IL
6
8.0
dB
3 dB Passband
BW
3
1, 2
100
140
200
kHz
Amplitude Ripple over fc80 kHz
1.5
dB
P-P
Group Delay Variation over fc50 kHz
GDV
300
1000
ns
P-P
Absolute Group Delay
GD
2.8
s
Rejection
fc-600 to fc-400 and fc+400 to fc+600 MHz
1, 2, 3
25
26
dB
fc-1.0 to fc-0.6 and fc+0.6 to fc+1.8 MHz
35
40
69.6 to 70.0 MHz
40
45
31 to 69.6 and 71.8 to 111 MHz
35
50
Operating Temperature Range
T
A
1
-40
+85
C
Impedance Matching to 50
unbalanced
External L-C
Case Style
SMP-87 22.1 X 8 mm Nominal Footprint
Lid Symbolization (YY=year, WW=week)
RFM SF1081A-1 YYWW
SMP-87
Designed for GSM BTS Receiver IF Applications
Simple External Impedance Matching
Hermetic SMP-87 Surface-Mount Case
Unbalanced Input and Output
Wider Temperature Version of SF1081A
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
71.00 MHz
SAW Filter
SF1081A-1
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.
2.
Unless noted otherwise, all frequency specifications are referenced to the nom-
inal center frequency, fc.
3.
Rejection is measured as attenuation below the minimum IL point in the pass-
band. Rejection in final user application is dependent on PCB layout and exter-
nal 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.
Copyright 1999, RF Monolithics Inc.
10.
Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
Connection
Terminals
Port 1Hot
1
Port 1 Gnd Return
10
Port 2 Hot
6
Port 2 Gnd Return
5
Case Ground
All Others
Electrical Connections
Pb
71.000 MHz SAW Filter
RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-8148
E-mail: info@rfm.com
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
http://www.rfm.com
1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
SF1081A-1 112904
SMP-87 Case
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
Case Dimensions
Dimension
mm
Inches
Min
Nom
Max
Min
Nom
Max
A
21.90
22.10
22.40
0.862
0.870
0.882
B
7.80
8.00
8.30
0.307
0.315
0.327
C
1.78
2.00
0.070
0.079
D
2.29
0.090
E
1.02
0.040
H
1.0
0.039
M
4.83
0.190
N
2.41
0.095
P
1.905
0.075
Electrical Connections
Connection
Terminals
Port 1
Input or Return
10
Return or Input
1
Port 2
Output or Return
5
Return or Output
6
Ground
All others
Single Ended Operation
Return is ground
Differential Operation
Return is hot
10-Terminal Ceramic Surface-Mount Case
22.1 x 8 mm Nominal Footprint
A
B
C
H
D
E (10 Places)
P (8 Places)
M
N
Terminal Detail
TOP VIEW
BOTTOM VIEW
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