SF2247E
• Low-loss 422 MHz SAW Filter
• No Matching Required for Operation in 50Ω Environment
• Complies with Directive 2002/95/EC (RoHS)
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
Pb
Value
10
3
-40 to +85
-40 to +85
265
422 MHz
SAW Filter
Units
dBm
V
°C
°C
°C
SM3030-6
Electrical Characteristics
Characteristic
Center Frequency
Insertion Loss, 420 to 424 MHz
Amplitude Ripple, 420 to 424 MHz
VSWR, 420 to 424 MHz
Attenuation Referenced to 0 dB:
10 to 300 MHz
300 to 380 MHz
380 to 405 MHz
414 MHz
440 to 450 MHz
450 to 700 MHz
700 to 1000 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
Z
S
Z
L
60
55
45
15
30
50
43
72
71
57
72
37
56
56
50
50
SM3030-6 3.0 x 3.0 mm Nominal Footprint
985, YWWS
500 Pieces/Reel
3000 Pieces/Reel
Ω
Ω
dB
Sym
f
C
IL
Notes
Min
Typ
422
1.9
0.3
1.5:1
Max
3.0
1.6
2.4:1
Units
MHz
dB
dB
P-P
Electrical Connections
Connection
Input
Output
Case Ground
Terminals
2
5
All others
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
2.
3.
4.
5.
6.
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 nominal center frequency, fc.
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.
The design, manufacturing process, and specifications of this filter are subject to change.
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
©2010 by RF Monolithics, Inc.
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SF2247E - 9/9/10
RFM [ RF MONOLITHICS, INC ]
