Preliminary
SF2237C
• High Performance SAW Filter
• 5 x 5 mm Surface-mount Package
• Complies with Directive 2002/95/EC (RoHS)
515.0 MHz
SAW Filter
Pb
Absolute Maximum Ratings
Rating
Value
+10
Units
dBm
VDC
°C
Maximum Incident Power in Passband
Maximum DC Voltage Between any Two Active Terminals
Operating Temperature Range
30
-40 to +85
-40 to +85
Storage Temperature Range in Tape and Reel
°C
Suitable for Lead-free Soldering - Maximum Soldering Profile
260 °C for 30 s
SM5050-8
Electrical Characteristics
Characteristic
Sym
Notes
Min
Typ
Max
5.0
Units
f
Nominal Center Frequency
Minimum Insertion Loss
1 dB Bandwidth
515.0
-
MHz
dB
C
IL
MIN
BW
27
30
MHz
1
Amplitude Ripple, f ±11.5 MHz
dB
0.6
30
1.0
C
P-P
Group Delay Ripple, f ±11.5 MHz
ns
C
P-P
Rejection referenced to IL
300 to 487.5 MHz
MIN:
45
45
60
50
dB
540 to 650 MHz
Frequency Temperature Drift
-93
ppm/°C
Case Style
5 x 5 mm Nominal Footprint
971, YWWS
Lid Symbolization, Y=year, WW=week, S=shift, Dot=pin 1 indicator
Standard Reel Quantity
Reel Size 7 Inch
Reel Size 13 Inch
500 Pieces/Reel
3000 Pieces/Reel
Electrical Connections
Connection
Input
Terminals
1
5
Output
Case Ground
All others
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
Unless noted otherwise, all specifications apply over the operating temper-
ature 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
nominal center frequency, fc.
and "ENG" or "E" indicates "engineering prototypes."
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.
5.
6.
2.
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.
7.
8.
4.
"LRIP" or "L" after the part number indicates "low rate initial production"
www.RFM.com E-mail: info@rfm.com
© 2010 by RF Monolithics, Inc.
Page 1 of 4
SF2237C - 6/14/10
RFM [ RF MONOLITHICS, INC ]
