SF1081A RFM, SF1081A Datasheet
SF1081A
Manufacturer Part Number
SF1081A
Description
SAW RF/IF FILTER 71MHZ
Manufacturer
RFM
Datasheet
1.SF1081A.pdf
(3 pages)
Specifications of SF1081A
Frequency
71MHz Center
Bandwidth
140kHz
Filter Type
Bandpass
Insertion Loss
6dB
Applications
Cellular, GSM
Package / Case
0.870" L x 0.315" W x 0.070" H (22.10mm x 8.00mm x 1.78mm)
Mounting Type
Surface Mount
Product
RF SAW Filters
Impedance
50 Ohms
Termination Style
SMD/SMT
Operating Temperature Range
- 40 C to + 85 C
Voltage Rating
30 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
583-1077-2
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SF1081A
Manufacturer:
RFMD
Quantity:
5 000
Electrical Connections
www.RFM.com E-mail: info@rfm.com
©2008 by RF Monolithics, Inc.
Electrical Characteristics
1.
2.
3.
4.
• Designed for GSM BTS Receiver IF Applications
• Simple External Impedance Matching
• Hermetic SMP-87 Surface-Mount Case
• Unbalanced Input and Output
• Indoor-Temperature Version of SF1081A-1
• Complies with Directive 2002/95/EC (RoHS)
Absolute Maximum Ratings
Port 1Hot
Port 1 Gnd Return
Port 2 Hot
Port 2 Gnd Return
Case Ground
Impedance Matching to 50
Case Style
Lid Symbolization (YY=year, WW=week)
Rating
Maximum Incident Power in Passband
Max. DC voltage between any 2 terminals
Storage Temperature Range
Suitable for lead-free soldering - Max Soldering Profile
Characteristic
Nominal Center Frequency
Passband
Rejection
Operating Temperature Range
Unless noted otherwise, all specifications apply over the operating tem-
perature range with filter soldered to the specified demonstration board
with impedance matching to 50
lyzer.
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.
"LRIP" or "L" after the part number indicates "low rate initial production"
and "ENG" or "E" indicates "engineering prototypes."
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
Connection
fc-600 to fc-400 and fc+400 to fc+600 kHz
fc-1.0 to fc-0.6 and fc+0.6 to fc+1.8 MHz
unbalanced
Group Delay Variation over fc±50 kHz
and measured with 50
Amplitude Ripple over fc±80 kHz
31 to 69.6 and 71.8 to 111 MHz
Absolute Group Delay
Terminals
Insertion Loss at fc
All Others
69.6 to 70.0 MHz
3 dB Passband
10
1
6
5
network ana-
Pb
Sym
GDV
BW
GD
-40 to +85
T
f
IL
C
Value
A
5.
6.
7.
8.
9.
3
+10
30
260°C for 30 s
The design, manufacturing process, and specifications of this filter are
subject to change.
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.
US and international patents may apply.
RFM, stylized RFM logo, and RF Monolithics, Inc. are registered
trademarks of RF Monolithics, Inc.
©Copyright 1999, RF Monolithics Inc.
Notes
1, 2, 3
1, 2
1
1
SMP-87 22.1 X 8 mm Nominal Footprint
Units
VDC
dBm
°C
±100
Min
RFM SF1081A YYWW
25
35
40
35
-5
External L-C
71.000
±140
Typ
300
2.8
26
40
45
50
6
SAW Filter
71.00 MHz
SF1081A
SMP-87
Max
±200
1000
+70
8.0
1.5
SF1081A - 9/5/08
Page 1 of 3
Units
dB
ns
MHz
kHz
dB
µs
dB
°C
P-P
P-P
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SF1081A Summary of contents
Page 1
... Designed for GSM BTS Receiver IF Applications • Simple External Impedance Matching • Hermetic SMP-87 Surface-Mount Case • Unbalanced Input and Output • Indoor-Temperature Version of SF1081A-1 • Complies with Directive 2002/95/EC (RoHS) Absolute Maximum Ratings Rating Maximum Incident Power in Passband Max. DC voltage between any 2 terminals ...
Page 2
... E-mail: info@rfm.com ©2008 by RF Monolithics, Inc. Page SF1081A - 9/5/08 ...
Page 3
... Electrical Connections Connection Terminals All others Return is ground Return is hot N E (10 Places Places) Terminal Detail Max 0.882 0.327 0.079 Page SF1081A - 9/5/08 ...