SF2237C Datasheet, PDF (1/4 Pages) RF Monolithics, Inc – 515.0 MHz SAW Filter

Preliminary
SF2237C
• High Performance SAW Filter
• 5 x 5 mm Surface-mount Package
• Complies with Directive 2002/95/EC (RoHS)
Pb
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Maximum DC Voltage Between any Two Active Terminals
Operating Temperature Range
Storage Temperature Range in Tape and Reel
Suitable for Lead-free Soldering - Maximum Soldering Profile
Value
Units
+10
dBm
30
VDC
-40 to +85
°C
-40 to +85
°C
260 °C for 30 s
515.0 MHz
SAW Filter
SM5050-8
Electrical Characteristics
Characteristic
Nominal Center Frequency
Minimum Insertion Loss
1 dB Bandwidth
Amplitude Ripple, f_C ±11.5 MHz
Group Delay Ripple, f_C ±11.5 MHz
Rejection referenced to IL_MIN:
300 to 487.5 MHz
540 to 650 MHz
Frequency Temperature Drift
Case Style
Lid Symbolization, Y=year, WW=week, S=shift, Dot=pin 1 indicator
Standard Reel Quantity
Reel Size 7 Inch
Reel Size 13 Inch
Electrical Connections
Connection
Input
Output
Case Ground
Terminals
1
5
All others
Sym
f_C
IL_MIN
BW₁
Notes
Min
Typ
Max
515.0
-
5.0
27
30
0.6
1.0
30
45
60
45
50
-93
5 x 5 mm Nominal Footprint
971, YWWS
500 Pieces/Reel
3000 Pieces/Reel
Units
MHz
dB
MHz
dB_P-P
ns_P-P
dB
ppm/°C
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.
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.
www.RFM.com E-mail: [e-mail]
© 2010 by RF Monolithics, Inc.
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SF2237C - 6/14/10