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.
SF1087A-051705
Electrical Characteristics
Characteristic
Sym
Notes
Min
Typ
Max
Units
Nominal Center Frequency
f
C
1
208.000
MHz
Passband
Insertion Loss at fc
IL
5
7.0
dB
1 dB Passband
BW
1
1, 2
150
260
kHz
Amplitude Ripple over fc150 kHz
1.25
dB
P-P
Group Delay Variation over fc 150 kHz
GDV
<100
150
ns
P-P
Absolute Group Delay
GD
0.7
1.0
1.7
s
Rejection
fc-0.6 to fc-0.4 and fc+0.4 to fc+0.6 MHz
1, 2, 3
2
dB
fc-1.2 to fc-0.6 and fc+0.6 to fc+1.2 MHz
8
fc-1.8 to fc-1.2 and fc+1.2 to fc+1.8 MHz
20
22
fc-3.4 to fc-1.8 and fc+1.8 to fc+3.4 MHz
25
36
fc-9.5 to fc-3.4 and fc+3.4 to fc+9.5 MHz
30
47
fc-13 to fc-9.5 and fc+9.5 to fc+13 MHz
43
64
DC to fc-13 and fc+13 to 450 MHz
55
65
Except Spurious Rejection near 1.6, 1.8, and 2.0 x fc
50
Operating Temperature Range
T
A
1
-10
+85
C
SM13365-12
Designed for GSM BTS Transmitter IF Applications
Low Insertion Loss
Excellent Size-to-Performance Ratio
Hermetic 13.3 x 6.5 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
208 MHz
SAW Filter
SF1087A
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 W
and measured with 50
network analyzer.
2.
Unless noted otherwise, all frequency specifications 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 fil-
ter must always be installed in one direction per the circuit design.
7.
US and international patents may apply.
8.
Electrostatic Sensitive Device. Observe precautions for handling.
Connection
Terminals
Port 1 Hot
2
Port 1 Gnd Return
3
Port 2 Hot
8
Port 2 Gnd Return
9
Case Ground
All others
Electrical Connections
Impedance Matching to 50
unbalanced
External L-C
Case Style
SM13365-12 13.3 x 6.5 mm Nominal Footprint
Lid Symbolization (YY = year, WW = week)
RFM SF1087A YYWW
Pb
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