SF2208E Datasheet, PDF (1/5 Pages) RF Monolithics, Inc – 1227 MHz SAW Filter

Preliminary
• No Matching Network Required for 50 Ω Operation
• Surface-mount 3.0 x 3.0 mm Package
• 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
Solder Reflow Temperature, 10 seconds, 5 cycles maximum
Pb
Value
20
3
-20 to +70
-30 to +85
260
Units
dBm
V
°C
°C
°C
SF2208E
1227 MHz
SAW Filter
Electrical Characteristics
Characteristic
Center Frequency
Insertion Loss, 1227 MHz
Amplitude Ripple, 1217 to 1237 MHz
Input/Output VSWR, 1217 to 1237 MHz
Attenuation, 0 dB Reference:
DC to 600 MHz
600 to 1177 MHz
1277 to 1290 MHz
1290 to 3000 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
Typ
1227
0.95
0.1
1.3:1
SM3030-6
Max
1.30
0.8
2.0:1
Units
MHz
dB
10
26.4
10
21.6
dB
20
36.0
10
25.2
Z_S
50
Ω
Z_L
50
SM3030-6 3.0 x 3.0 mm Nominal Footprint
943, YWWS
500 Pieces/Reel
3000 Pieces/Reel
50 ohm
Load
6
1
5
2
4
3
(b o tto m v ie w )
50 ohm
S o u rc e
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 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]
©2009-2010 by RF Monolithics, Inc.
Page 1 of 5
SF2208E - 7/16/10