Data Sheet
Part Number 855969
1575.42 MHz SAW Filter
Subject to change or obsolescence without notice
Last Updated: 14-May-2001
Page 1 of 5
Features
For
GPS
applications
Usable bandwidth 2.4 MHz
Low
loss
No impedance matching required for operation
at 50
Single-ended
operation
Ceramic Surface Mount Package (SMP)
Small
size
Package
Pin Configuration
Surface Mount 3.0 x 3.0 x 1.22 mm
6
5
4
3
2
1
0.69
1.22 NOM.
1.32 MAX.
0.75
0.60
1.50
0.75
3.00
3.00
Dimensions shown are nominal in millimeters
All tolerances are
0.15mm except overall
length and width
0.10mm
Body: Al
2
O
3
ceramic
Lid: Kovar, Ni plated
Terminations: Au plating 0.5 - 1.0
m,
over a 2 - 6
m Ni plating
Pin No.
Description
2,5
Input/Output
1,3,4,6
Case ground
Data Sheet
Part Number 855969
1575.42 MHz SAW Filter
Subject to change or obsolescence without notice
Last Updated: 14-May-2001
Page 2 of 5
Electrical Specifications
(1)
Operating Temperature Range:
(2)
-40 to +85
o
C
Parameter
(3)
Minimum
Typical
Maximum
Unit
Center Frequency
-
1575.42
-
MHz
Maximum Insertion Loss
1574.22 - 1576.62 MHz
-
1.3
1.8
dB
Passband Ripple
1574.22 - 1576.62 MHz
-
0.3
1
dB p-p
Absolute Attenuation
10 - 1450 MHz
1450 - 1500 MHz
1625 - 1640 MHz
1640 - 2000 MHz
2000 - 3000 MHz
40
30
30
45
30
42
45
58
49
35
-
-
-
-
-
dB
dB
dB
dB
dB
Input/Output VSWR
1574.22 - 1576.62 MHz
-
1.2:1
2:1
dB
Terminating Source Impedance:
(4)
-
50
-
Terminating Load Impedance:
(4)
-
50
-
Operating Temperature Range
-40
+25
+85
o
C
Notes:
1. All specifications are based on the test circuit shown below
2. In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over
temperature
3. Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances
4. This is the optimum impedance in order to achieve the performance shown
Test Circuit:
50
Single-ended
1,3,4,6
2
5
50
50
No impedance matching
required
Data Sheet
Part Number 855969
1575.42 MHz SAW Filter
Subject to change or obsolescence without notice
Last Updated: 14-May-2001
Page 3 of 5
Typical Performance
(at +25
o
C)
Data Sheet
Part Number 855969
1575.42 MHz SAW Filter
Subject to change or obsolescence without notice
Last Updated: 14-May-2001
Page 4 of 5
Matching Schematics
50
Single-ended
1,3,4,6
2
5
50
50
No impedance matching
required
Marking
PCB Footprint
Marking
code
Date code
4
XXX
logo
ID dot
Pad 1
Sawtek
.96
3.20 SQ
1.27
.38
.81
1.70
Date code is the day of the current year in 3-digit Julian format
This footprint represents a recommendation only
Dimensions shown are nominal in millimeters
Tape and Reel
3.25
Section A-A
1.75
1.5
4.0
A
12.0
5.5
1.5
4.0
2.0
3.25
1.4
0.21
A
logo
Sawtek
330
13.0
20.2
Pad 1 ID dot
Direction of travel
2.0
102
12.8
2.7
Dimensions shown are nominal in millimeters
Packaging quantity: 5000 units/reel
Data Sheet
Part Number 855969
1575.42 MHz SAW Filter
Subject to change or obsolescence without notice
Last Updated: 14-May-2001
Page 5 of 5
Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Unit
Operating Temperature Range
T
-40
+85
o
C
Storage Temperature Range
T
stg
-40
+85
o
C
RF Power
P
in
-
+10
dBm
Warnings
Electrostatic Sensitive Device (ESD)
Avoid ultrasonic exposure
Links to Additional Technical Information
PCB Layout Tips
Qualification Flowchart
Soldering Profile
S-Parameters
Reel and Packaging Label
Other Technical Information
Contact Information
PO Box 609501
Orlando, FL 32860-9501
USA
Phone: +1 (407) 886-8860
Fax: +1 (407) 886-7061
Email:
custservice@sawtek.com
Web:
www.sawtek.com
Or contact one of our worldwide
Network of
sales offices,
Representatives or distributors
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