RF Monolithics, Inc.
RFM Europe
1999 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) 387-8148
Fax: 44 1963 251510
E-mail: info@rfm.com
http://www.rfm.com
SF1091A-100605
Page 1 of 9
Electrical Characteristics
Characteristic
Sym
f
C
IL
BW
3
GDV
Notes
1
Min
Typ
Max
Units
MHz
dB
kHz
ns
P-P
dB
Nominal Center Frequency
Passband
211.000
Insertion Loss at fc
3 dB Passband
7
8.0
1, 2
±450
±500
Group Delay Variation over fc ±150 kHz
fc-2.0 to fc-1.05 and fc+1.05 to fc+2.0 MHz
fc-80 to fc-2.0 and fc+2.0 to fc+80 MHz
n x fc over 291 to 2000 MHz
200
21
33
60
250
Rejection
1, 2, 3
10
30
40
Operating Temperature Range
Frequency Temperature Coefficient
T
A
FTC
1
1
-10
+85
°C
0.32
ppm/°C
2
Impedance Matching to 50
unbalanced
Case Style
Lid Symbolization (XX = 2 character date code)
External L-C
SM13365-12 13.3 x 6.5 mm Nominal Footprint
RFM SF1091A XX
SM13365-12
Designed for GSM BTS Transmitter 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
+10
30
-40 to +85
Units
dBm
VDC
°C
Maximum Incident Power in Passband
Max. DC voltage between any 2 terminals
Storage Temperature Range
Suitable for lead-free soldering - Max Soldering Profile
260°C for 30 s
211 MHz
SAW Filter
SF1091A
Connection
Port 1 Hot
Port 1 Gnd Return
Port 2 Hot
Port 2 Gnd Return
Case Ground
Terminals
11
12
5
6
All others
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.
Unless noted otherwise, all frequency specitications 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 oon PCB layout
and external impedance matching design. See Application Note No. 42 for details.
The turnover temperature, T
O
, is the temperature of maximum (or turnover) frequency, f
o
. The nominal frequency at any case temperature, T
c
, may
be calculated from: f=f
o
[1-FTC(T
o
-T
c
)
2
].
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 filter 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.
Electrical Connections
Pb