®
SF1081A-1
71.00 MHz
SAW Filter
Value
+10
30
-40 to +85
260°C for 30 s
Units
dBm
VDC
°C
•
•
•
•
•
•
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
Pb
Complies with Directive 2002/95/EC (RoHS)
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Max. DC voltage between any 2 terminals
Storage Temperature Range
Suitable for lead-free soldering - Max Soldering Profile
SMP-87
Electrical Characteristics
Characteristic
Nominal Center Frequency
Passband
Insertion Loss at fc
3 dB Passband
Amplitude Ripple over fc±80 kHz
Group Delay Variation over fc±50 kHz
Absolute Group Delay
Rejection
fc-600 to fc-400 and fc+400 to fc+600 MHz
fc-1.0 to fc-0.6 and fc+0.6 to fc+1.8 MHz
69.6 to 70.0 MHz
31 to 69.6 and 71.8 to 111 MHz
Operating Temperature Range
Impedance Matching to 50
Ω
unbalanced
Case Style
Lid Symbolization (YY=year, WW=week)
T
A
1
1, 2, 3
GDV
GD
25
35
40
35
-40
External L-C
SMP-87 22.1 X 8 mm Nominal Footprint
RFM SF1081A-1 YYWW
Sym
f
C
IL
BW
3
1, 2
Notes
1
±100
Min
Typ
71.000
6
±140
300
2.8
26
40
45
50
+85
°C
dB
Max
8.0
±200
1.5
1000
Units
MHz
dB
kHz
dB
P-P
ns
P-P
µs
Electrical Connections
Connection
Port 1Hot
Port 1 Gnd Return
Port 2 Hot
Port 2 Gnd Return
Case Ground
Terminals
1
10
6
5
All Others
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
Ω
and measured with 50
Ω
network analyzer.
Unless noted otherwise, all frequency specifications are referenced to the nom-
inal center frequency, fc.
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.
"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
6.
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.
Electrostatic Sensitive Device. Observe precautions for handling.
2.
3.
7.
8.
9.
10.
4.
5.
RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-8148
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: info@rfm.com
http://www.rfm.com
SF1081A-1 112904
RFM [ RF MONOLITHICS, INC ]
