SF1081A-1 Datasheet, PDF (1/8 Pages) RF Monolithics, Inc – 71.00 MHz SAW Filter

®
• Designed for GSM BTS Receiver IF Applications
• Simple External Impedance Matching
• Hermetic SMP-87 Surface-Mount Case
• Unbalanced Input and Output
• Wider Temperature Version of SF1081A
• Complies with Directive 2002/95/EC (RoHS) Pb
SF1081A-1
71.00 MHz
SAW Filter
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
Value
Units
+10
dBm
30
VDC
-40 to +85
°C
260°C for 30 s
SMP-87
Electrical Characteristics
Characteristic
Nominal Center Frequency
Passband
Insertion Loss at fc
3 dB Passband
Amplitude Ripple over fc±80 kHz
Group Delay Variation over fc±50 kHz
Absolute Group Delay
Rejection
fc-600 to fc-400 and fc+400 to fc+600 MHz
fc-1.0 to fc-0.6 and fc+0.6 to fc+1.8 MHz
69.6 to 70.0 MHz
31 to 69.6 and 71.8 to 111 MHz
Operating Temperature Range
Sym
f_C
IL
BW₃
GDV
GD
T_A
Notes
1
1, 2
1, 2, 3
1
Min
±100
25
35
40
35
-40
Typ
71.000
6
±140
300
2.8
26
40
45
50
Max
8.0
±200
1.5
1000
+85
Units
MHz
dB
kHz
dB_P-P
ns_P-P
µs
dB
°C
Impedance Matching to 50 Ω unbalanced
Case Style
Lid Symbolization (YY=year, WW=week)
External L-C
SMP-87 22.1 X 8 mm Nominal Footprint
RFM SF1081A-1 YYWW
Electrical Connections
Connection
Port 1Hot
Port 1 Gnd Return
Port 2 Hot
Port 2 Gnd Return
Case Ground
Terminals
1
10
6
5
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 nom-
inal center frequency, fc.
3. Rejection is measured as attenuation below the minimum IL point in the pass-
band. Rejection in final user application is dependent on PCB layout and exter-
nal 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. Phone: [phone]
Fax: [phone]
RFM Europe
Phone: [phone]
Fax: [phone]
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: [e-mail]
http://www.rfm.com
SF1081A-1 112904