SF1083B Datasheet, PDF (1/6 Pages) RF Monolithics, Inc – 286 MHz SAW Filter

SF1083B 286 MHz SAW Filter
• Designed for GSM BTS Transmitter Applications
• Low Insertion Loss and Small Size
• 8.5 x 5.8 mm Surface-Mount Case
• Unbalanced Input and Output
Characteristic
Nominal Center Frequency
Passband
Insertion Loss at fc
3 dB Passband
Amplitude Ripple over fc ±75 kHz
Group Delay Variation over fc ±75 kHz
Rejection 100 kHz to fc-6.0 MHz and fc+6.0 to 540 MHz
Ultimate
Operating Temperature Range
Sym
fc
IL
BW3
GDV
TA
Min
Typ Max
286.000
6
8.0
±275
0.3
100
20
40
>40
-40
+85
Units
MHz
dB
kHz
dBP-P
nsP-P
dB
Notes
1
1, 2
1, 2, 3
°C
1
Impedance Matching to 50 Ω unbalanced
Case Style
Lid Symbolization (YY=year, WW=week, XXX=lot code)
External L-C
SM8558-8 8.5 x 5.8 mm Nominal Footprint
RFM SF1083B YYWWXXX
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Max. DC voltage between any 2 terminals
Storage Temperature Range
Max Soldering Profile
Value Units
+10
dBm
30
VDC
-40 to +85 °C
235°C for 90 s
Electrical Connections
Connection Terminals
Port 1 Hot 7
Port 1 Gnd Return 1
Port 2 Hot 3
Port 2 Gnd Return 5
Case Ground All Others
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.
9. ©Copyright 1999, RF Monolithics Inc.
10. Electrostatic Sensitive Device. Observe precautions for handling.
RF Monolithics, Inc.
4347 Sigma Road
Dallas, Texas 75244
USA
Phone: [phone]
Fax: [phone]
e-mail: [e-mail]
Home page: www.rfm.com
European Sales Office
44 1963 251383
44 1963 251510
SF1083B 7/22/1999 R