Preliminary
SF2188C
•
•
•
•
Low Insertion Loss
5.0 X 5.0 mm Surface-mount Case
Single-ended Input and Output
Complies with Directive 2002/95/EC (RoHS)
Pb
340 MHz
SAW Filter
Value
+10
3
-40 to +85
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Maximum DC Voltage on any Non-ground Terminal
Storage Temperature Range in Tape and Reel
Suitable for Lead-free Soldering - Maximum Soldering Temperature
Units
dBm
VDC
°C
260 °C for 30 s
SM5050-8
Electrical Characteristics
Characteristic
Nominal Center Frequency
Insertion Loss, 337 to 343 MHz
Passband Ripple, 337 to 343 MHz
Return Loss, 337 to 343 MHz
Absolute Attenuation Referenced to 0 dB
300 to 320 MHz
320 to 331 MHz
350 to 370 MHz
370 to 400 MHz
Frequency Temperature Coefficient
Source Impedance
Load Impedance
Operating Temperature Range
Case Style
Lid Symbolization (Y=year, WW=week, S=shift)
Sym
F
C
IL
Notes
1
1
1
Min
Typ
340
1.9
0.4
14
46
12
12
45
-37
50
50
Max
3.5
1.5
Units
MHz
dB
dB
P-P
dB
dB
dB
dB
dB
ppm/°C
ohm
ohm
°C
9
2
2
2
2
40
6
6
40
-40
+85
SM5050-8 5 x 5 mm Nominal Footprint
RFM 875 YWWS
Electrical Connections
Connection
Port 1
Port 2
Dot indicates Pin 1
Input
Output
Ground
Terminals
2
6
All others
5 0 o h m
2
S F 2 1 8 8 C
6
5 0 o h m
1 , 3 , 4 , 5 , 7 , 8
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
2.
3.
4.
5.
6.
7.
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.
Rejection is measured as attenuation referenced to 0 dB. Rejection in final user application is dependent on PCB layout and external impedance matching
design. See Application Note No. 42 for details.
The design, manufacturing process, and specifications of this filter are subject to change.
Tape and Reel Standard ANSI / EIA 481.
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.
www.RFM.com E-mail: info@rfm.com
©2009 - 2010 by RF Monolithics, Inc.
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SF2188C - 6/14/10
RFM [ RF MONOLITHICS, INC ]
