®
SF2008D
Pb
•
•
•
RF Filter for Pager Applications
High Rejection Out of Band
Complies with Directive 2002/95/EC (RoHS)
930.5 MHz
SAW Filter
Value
+0
30
-40 to +85
260°C for 30 s
Units
dBm
VDC
°C
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Max. DC voltage between any 2 Terminals
Storage Temperature Range
Suitable for lead-free soldering - Max. Soldering Profile
SM3838-6
Electrical Characteristics
Characteristic
Nominal 1 dB Center Frequency
Passband
Rejection
Insertion Loss across 928.5 to 932.5 MHz
Amplitude Variation over fc ±2 MHz
400 to 880 MHz
884.8 to 890.2 MHZ
906.8 to 911.2 MHZ
980 to 1300 MHZ
Operating Temperature Range
Impedance at Fc
Input
Output
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
T
A
1
1, 2, 3
Sym
f
C
IL
Notes
1
1, 2
35
40
30
35
-20
50 - j57 ohm
50 - j57 ohm
SM3838-6 3.8 x 3.8 mm Nominal Footprint
455, YWWS
1000 Pieces/Reel
3000 Pieces/Reel
+70
°C
dB
Min
Typ
930.5
Max
4.5
2.0
Units
MHz
dB
dB
P-P
Electrical Connections
Connection
Port 1
Port 2
Case Ground
Terminals
2
5
All others
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.
9. ©Copyright 1999, RF Monolithics Inc.
10. 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
net-
work 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 Applica-
tion Note No. 42 for details.
4. "LRIP" or "L" after the part number indicates "low rate initial produc-
tion" and "ENG" or "E" indicates "engineering prototypes."
RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-8148
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: info@rfm.com
http://www.rfm.com
SF2008D-121604
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RFM [ RF MONOLITHICS, INC ]
