SF1115A 199 MHz SAW Filter
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Designed For GSM BTS Receiver IF
Compatible with National Semiconductor Chip Set
Very Flexible Impedance Matching
Unbalanced or Balanced Input or Output
9.1 x 7.1 mm Version of the SF1115A-1
Characteristic
Nominal Center Frequency
Passband
Insertion Loss at fc
1 dB Passband
Amplitude Ripple over fc
±100
kHz
Group Delay Variation over fc
±100
kHz
Rejection
fc-800 to fc-600 and fc+600 to fc+800 kHz
fc-30 MHz to fc-800 kHz
fc+800 kHz to fc+17 MHz
fc-80 MHz to fc-30 MHz
fc+17 MHz to fc+80 MHz
Operating Temperature Range
Impedance Matching to 50
Ω
unbalanced
Impedance Matching to 200
Ω
balanced
Case Style
Lid Symbolization (YY = year, WW = Week)
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Max. DC voltage between any 2 terminals
Storage Temperature Range
Max Soldering Profile
Sym
fc
IL
BW
1
GDV
Min
Typ
199.000
Max
7.0
±100
0.5
500
20
30
30
35
35
-35
Units
MHz
dB
kHz
dB
P-P
ns
P-P
dB
Notes
1
1, 2
1, 2, 3
T
A
+85
°C
1
External L-C
External L-C
SM9171-10 9.1 x 7.1 mm Nominal Footprint
RFM SF1115A YYWW
Electrical Connections
Connection Terminals
Port 1 Hot 10
Port 1 Return 1
Port 2 Hot 5
Port 2 Return 6
Case Ground All Others
Value
Units
+15
dBm
30
VDC
-40 to +85
°C
265°C for 10 s
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.
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 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.
RF Monolithics, Inc.
4347 Sigma Road
Dallas, Texas 75244
USA
Phone: +1(972)233-2903
Fax: +1(972)387-8148
e-mail:
info@rfm.com
Home page:
www.rfm.com
European Sales Office
44 1963 251383
44 1963 251510
SF1115A 7/22/1999 R
嵌入式系统
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