SF1125A Datasheet, PDF (1/6 Pages) RF Monolithics, Inc – 380 MHz SAW Filter

• Designed for WCDMA 3G IF Applications
• Excellent Size-to-Performance Ratio
• Hermetic 13.3 x 6.5 mm Surface-mount Case
• Complies with Directive 2002/95/EC (RoHS) Pb
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
Electrical Characteristics
Characteristic
Sym
Notes
Min
Nominal Center Frequency
f_C
1
Passband
Insertion Loss at fc
IL
1 db Passband BW₁
4.45
3 db Passband BW₃
5.1
Amplitude Ripple over fc±2.25 MHz
1, 2
Phase Linearity over fc±2.25 MHz
Group Delay Variation over fc ±fc2.25 MHz GDV
Rejection
fc-3.95 to fc-3.33 and fc+3.3 to fc+3.95 MHz
10
fc-4.125 to fc-3.95 and fc+3.95 to fc+4.125 MHz
1, 2, 3
30
fc±4.125 to fc±60 MHz
40
Part to Part Average Group Delay Variation
4
Operating Temperature Range
Frequency Temperature Coefficient
T_A
1
-10
FTC
SF1125A
380 MHz
SAW Filter
SMP-53
Typ
380.000
16.5
5.0
5.4
0.75
7.5
150
+25
-18
Max
18
1.25
TBD
175
±5
+85
Units
MHz
dB
MHz
dB_P-P
°_P-P
ns_P-P
dB
nsec
°C
ppm/°C
Matching to 50Ω Balanced or Single Ended Impedance
Case Style
Lid Symbolization (YY = year, WW = week)
External L-C
SMP-53 13.3 x 6.5 mm Nominal Footprint
RFM SF1125A YYWW
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. Part to part absolute delay measurement records the absolute delay mean across 1 dB
passband.
5. "LRIP" or "L" after the part number indicates "low rate initial production" and "ENG" or "E"
indicates "engineering prototypes."
6. The design, manufacturing process, and specifications of this filter are subject to change.
7. 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 fil-
ter must always be installed in one direction per the circuit design.
8. US and international patents may apply.
9. Electrostatic Sensitive Device. Observe precautions for handling.
Electrical Connections
Connection
Port 1 Hot
Port 1 Gnd Return
Port 2 Hot
Port 2 Gnd Return
Case Ground
Terminals
11
12
5
6
All others
RF Monolithics, Inc. Phone: [phone]
Fax: [phone]
RFM Europe
Phone: [phone]
Fax: [phone]
©2001 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: [e-mail]
http://www.rfm.com
SF1125A-121504
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