
RF Monolithics, Inc.
RFM Europe
2001 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
Phone: (972) 233-2903
Phone: 44 1963 251383
Fax: (972) 387-8148
Fax: 44 1963 251510
E-mail: info@rfm.com
http://www.rfm.com
SF1125A-121504
Page 1 of 3
SMP-53
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)
Absolute Maximum Ratings
Rating
Value
+10
30
-40 to +85
Units
dBm
VDC
°C
Maximum Incident Power in Passband
Max. DC voltage between any 2 terminals
Storage Temperature Range
Suitable for lead-free soldering - Max. Soldering Profile
260°C for 30 s
380 MHz
SAW Filter
SF1125A
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
and measured with 50
network analyzer.
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.
Part to part absolute delay measurement records the absolute delay mean across 1 dB
passband.
"LRIP" or "L" after the part number indicates "low rate initial production" and "ENG" or "E"
indicates "engineering prototypes."
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 fil-
ter must always be installed in one direction per the circuit design.
US and international patents may apply.
Electrostatic Sensitive Device. Observe precautions for handling.
2.
3.
4.
5.
6.
7.
8.
9.
Connection
Port 1 Hot
Port 1 Gnd Return
Port 2 Hot
Port 2 Gnd Return
Case Ground
Terminals
11
12
5
6
All others
Electrical Connections
Electrical Characteristics
Characteristic
Sym
f
C
IL
BW
1
BW
3
Notes
1
Min
Typ
Max
Units
MHz
dB
Nominal Center Frequency
Passband
380.000
16.5
5.0
5.4
0.75
7.5
150
Insertion Loss at fc
1 db Passband
3 db Passband
18
1, 2
4.45
5.1
MHz
Amplitude Ripple over fc±2.25 MHz
Phase Linearity over fc±2.25 MHz
Group Delay Variation over fc ±fc2.25 MHz
fc-3.95 to fc-3.33 and fc+3.3 to fc+3.95 MHz
fc-4.125 to fc-3.95 and fc+3.95 to fc+4.125 MHz
1.25
TBD
175
dB
P-P
°
P-P
ns
P-P
GDV
Rejection
1, 2, 3
10
30
40
dB
fc±4.125 to fc±60 MHz
Part to Part Average Group Delay Variation
Operating Temperature Range
Frequency Temperature Coefficient
4
±5
+85
nsec
T
A
FTC
1
-10
+25
-18
°C
ppm/°C
Matching to 50
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
Pb