SF1189B Datasheet, PDF (1/4 Pages) RF Monolithics, Inc – 280.00 MHz SAW Filter

®
• Designed for WLAN IF Applications
• Low Insertion Loss
• 5.0 x 5.0 x 1.7 mm Suface-Mount Case
• Single Ended or Differential Input and Output
SF1189B
280.00 MHz
SAW Filter
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Max. DC voltage between any 2 terminals
Storage Temperature Range
Max Soldering Profile
Electrical Characteristics
Characteristic
Nominal Center Frequency
Passband
Insertion Loss at fc
3 dB Passband
Amplitude Ripple over fc ±9.0 MHz
Group Delay Variation over fc ±9.0
Rejection
fc -60 to fc -40 MHz
fc -40 to fc -22 MHz
fc -22 to fc -17 MHz
fc +17 to fc +22 MHz
fc +22 to fc +40 MHz
fc +40 to fc +60 MHz
Operating Temperature Range
Value
Units
+10
dBm
0
VDC
-40 to +85
°C
265°C for 10 s
Sym
f_C
IL
BW₃
GDV
Notes
1
1, 2
1, 2, 3
T_A
1
Min
18.5
40
38
30
25
34
40
-10
SM5050-8
Typ
280.0
8.2
20.1
2.0
72
47
41
39
36
36
41
Max
8.5
2.5
100
Units
MHz
dB
MHz
dB_P-P
ns_P-P
dB
+85
°C
Differential Input / Output Impedance Match
Case Style
Lid Symbolization (YY=year, WW=week, S=shift)
External L-C
SM5050-8 5 X 5 mm Nominal Footprint
453, YYWWS
Electrical Connections
50
Connection
Terminals
Port 1 Hot
2
Port 1 Gnd or Return
1
Port 2 Hot
6
Port 2 Gnd or Return
5
Case Ground
All others
Notes:
1. Unless noted otherwise, all specifications apply over the operating temperature 5.
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 nom-
inal center frequency, fc.
6.
3. Rejection is measured as attenuation below the minimum IL point in the pass-
7.
band. Rejection in final user application is dependent on PCB layout and exter-
nal impedance matching design. See Application Note No. 42 for details.
8.
4. The design, manufacturing process, and specifications of this filter are subject
9.
to change.
8.2 pf
pin 2
pin 6
8.1 pf
15 nH
SAW Filter
TOP VIEW
14 nH
50
All Others
figure 1
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.
RF Monolithics, Inc. Phone: [phone]
Fax: [phone]
RFM Europe
Phone: [phone]
Fax: [phone]
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: [e-mail]
http://www.rfm.com
SF1189B-032006
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