SF2248E Datasheet, PDF (1/4 Pages) RF Monolithics, Inc – 315 MHz SAW Filter

• Low-loss RF Filter for 315 MHz Applications
• No Matching Required for Operation in 50  Environment
• Complies with Directive 2002/95/EC (RoHS)
Pb
Absolute Maximum Ratings
Rating
Input Power Level
DC Voltage on any Non-ground Terminal
Operating Temperature Range
Storage Temperature Range in Tape and Reel
Maximum Soldering Profile, 5 Cycles/10 seconds Maximum
Value
10
3
-40 to +85
-40 to +85
265
Units
dBm
V
°C
°C
°C
SF2248E
315 MHz
SAW Filter
SM3030-6
Electrical Characteristics
Characteristic
Center Frequency
3 dB Bandwidth
Insertion Loss, 314.7 to 315.3 MHz
Amplitude Ripple, 314.7 to 315.3 MHz
VSWR
Attenuation Referenced to IL_MAX:
270.0 to 286.0 MHz
293.0 to 293.9 MHz
304.0 to 304.6 MHz
325.4 to 326.0 MHz
336.1 to 337.0 MHz
357.5 to 358.7 MHz
Source Impedance
Load Impedance
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
2
5
All others
Sym Notes
Min
f_C
IL_MAX
Typ
315
5
1.52
0.4
1.4:1
Max
2.50
1.2
1.6:1
55
65
53
60
48
60
24
30
36
52
50
60
Z_S
50
Z_L
50
SM3030-6 3.0 x 3.0 mm Nominal Footprint
986, YWWS
500 Pieces/Reel
3000 Pieces/Reel
Units
MHz
MHz
dB
dB_P-P
dB


CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
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  and measured with 50  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. The design, manufacturing process, and specifications of this filter are subject to change.
5. US and international patents may apply.
6. RFM, stylized RFM logo, and RF Monolithics, Inc. are registered trademarks of RF Monolithics, Inc.
www.RFM.com E-mail: [e-mail]
© 2010-2012 by RF Monolithics, Inc.
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SF2248E - 3/8/12