SF1088A
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Designed for GSM BTS Receiver IF Applications
Low Insertion Loss
Excellent Size-to-Performance Ratio
Hermetic SMP-75 Surface-Mount Case
Unbalanced Input and Output
Pb
Complies with Directive 2002/95/EC (RoHS)
170.6 MHz
SAW Filter
Value
+10
30
-40 to +85
260°C for 30 s
Units
dBm
VDC
°C
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
SMP-75
Electrical Characteristics
Characteristic
Nominal Center Frequency
Passband
Insertion Loss at fc
1 dB Passband
Amplitude Ripple over fc±90 kHz
Group Delay Variation over fc ±190 kHz
Rejection
fc-0.6 to fc-0.4 and fc+0.4 to fc+0.6 MHz
fc-0.8 to fc-0.6 and fc+0.6 to fc+0.8 MHz
fc-1.6 to fc-0.8 and fc+0.8 to fc+1.6 MHz
fc-3.0 to fc-1.6 and fc+1.6 to fc+3.0 MHz
fc-5.8 to fc-3.0 and fc+3.0 to fc+5.8 MHz
fc-35 to fc-5.8 and fc+5.8 to fc+35 MHz
fc-75 to fc-35 and fc+35 to 75 MHz
DC to fc-75 and fc+75 to fc+1000 MHz
Operating Temperature Range
T
A
1
GDV
1, 2, 3
13
27
40
43
47
50
45
40
-10
+85
°C
<500
15
35
45
55
55
55
55
Sym
f
C
IL
1, 2
±90
1.0
1000
Notes
1
Min
Typ
170.600
Max
8.0
Units
MHz
dB
kHz
dB
P-P
ns
P-P
dB
Impedance Matching to 50
Ω
unbalanced
Case Style
Lid Symbolization (YY = year, WW = week)
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 W
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 fil-
ter must always be installed in one direction per the circuit design.
7. US and international patents may apply.
8. Electrostatic Sensitive Device. Observe precautions for handling.
External L-C
SMP-75 19 x 6.5 mm Nominal Footprint
RFM SF1088A YYWW
Electrical Connections
Connection
Port 1 Hot
Port 1 Gnd Return
Port 2 Hot
Port 2 Gnd Return
Case Ground
Terminals
10
1
5
6
All others
RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-9148
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
©2001 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: info@rfm.com
http://www.rfm.com
SF1088A-121504
Page 1 of 3
170.6 MHz
SAW Filter
SMP-75 Case
10-Terminal Ceramic Surface-Mount Case
19 x 6.5 mm Nominal Footprint
Case Dimensions
Dimension
A
B
C
D
E
H
P
Min
18.80
6.30
mm
Nom
19.00
6.50
1.75
2.29
1.02
1.0
1.905
Max
19.30
6.80
2.00
Min
0.740
0.248
Inches
Nom
0.748
0.256
0.069
0.090
0.040
0.039
0.075
Max
0.760
0.268
0.079
Materials
Solder Pad
Termination
Lid
Body
Pb Free
Au plating 30 - 60 µinches (76.2-152 µm) over 80-
200 µinches (203-508 µm) Ni.
Fe-Ni-Co Alloy Electroless Nickel Plate (8-11%
Phosphorus) 100-200 µinches Thick
Al
2
O
3
Ceramic
Port 1
Port 2
Electrical Connections
Connection
Input or Return
Return or Input
Output or Return
Return or Output
Ground
Single Ended Operation
Differential Operation
Terminals
10
1
5
6
All others
Return is ground
Return is hot
B
C
H
D
P (8 Places)
6
7
A
8
9
10
5
4
3
2
1
5
4
3
2
1
6
7
8
9
10
E (10 Places)
TOP VIEW
BOTTOM VIEW
RF Monolithics, Inc.
Phone: (972) 233-2903
Fax: (972) 387-9148
RFM Europe
Phone: 44 1963 251383
Fax: 44 1963 251510
©2001 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
E-mail: info@rfm.com
http://www.rfm.com
SF1088A-121504
Page 3 of 3
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