®
SF1189B-1
280.00 MHz
SAW Filter
Pb
Value
+10
0
-40 to +85
260°C for 30 s
Units
dBm
VDC
°C
•
•
•
•
•
•
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
Differential Output
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
SM5050-8
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 -16 MHz
fc +16 to fc +22 MHz
fc +22 to fc +40 MHz
fc +40 to fc +60 MHz
Operating Temperature Range
Differential Input / Output Impedance Match
Case Style
Lid Symbolization (YY=year, WW=week, S=shift)
T
A
1
GDV
1, 2, 3
40
37
30
25
34
40
-10
External L-C
SM5050-8 5 X 5 mm Nominal Footprint
457, YYWWS
Sym
f
C
IL
BW
3
1, 2
17.97
Notes
1
Min
Typ
280.0
8.3
19.3
2.0
60
46
39
39
33
36
45
+85
°C
dB
3.0
125
Max
10
Units
MHz
dB
MHz
dB
P-P
ns
P-P
Electrical Connections
Connection
Port 1
Port 2
Single Ended Input
Differential Output
Ground
Terminals
3
6,7
All others
50
27 nH
pin 3
pin 7
22 pf
4:1
SAW Filter
15 pf
TOP VIEW
33 nH
50
All Others
pin 6
22 pf
RF IC
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."
5.
6.
figure 1
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.
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.
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
SF1189B-1-121604
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