All specifications are based on the test circuit shown below
In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over
temperature
Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances
This is the optimum impedance in order to achieve the performance shown
Minimum
-
-
45
40
35
25
40
-1.5
-8
-
-
-
Typical
1855
3
50
50
45
30
50
±1.2
±5
1.9
50
100
Maximum
-
3.5
-
-
-
-
-
1.5
8
2.5
-
-
Unit
MHz
dB
dB
dB
dB
dB
dB
dB
degree
-
Ω
Ω
Test Circuit:
1
3
100Ω
50Ω
2,5
4
50
Ω
Single-ended
Input
100
Ω
Balanced
Output
Subject to change or obsolescence without notice
Rev B
28-Jan-2003
Page 2 of 5
Preliminary Data Sheet
Part Number 856155
1855 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev B
28-Jan-2003
Page 3 of 5
Preliminary Data Sheet
Part Number 856155
1855 MHz SAW Filter
Matching Schematics
1
3
100Ω
50Ω
2,5
4
50
Ω
Single-ended
Input
100
Ω
Balanced
Output
Marking
Sawtek
logo
Marking
code
PCB Footprint
2.59
T
JJJYM
ID dot
Date code
2.08
.69
.71 SQ
.23
The date code consists of: JJJ = Julian day,
Y = last digit of year, M = manufacturing site code
This footprint represents a recommendation only
Dimensions shown are nominal in millimeters
Tape and Reel
8.8
2.7
Ø330
ID dot
Sawtek
logo
4.0
0.3
2.0
Ø1.5
A
1.75
2.75
Ø102
Direction of travel
Ø20.2
Ø13.0
2.0
3.5 8.0
4.0
Ø1.0
1.1
Section A-A
2.23
A
Dimensions shown are nominal in millimeters
Packaging quantity: 10000 units/reel
Subject to change or obsolescence without notice
Rev B
28-Jan-2003
Page 4 of 5
Preliminary Data Sheet
Maximum Ratings
Parameter
Operating Temperature Range
Storage Temperature Range
Part Number 856155
1855 MHz SAW Filter
Symbol
T
T
stg
Minimum
-30
-40
Maximum
+85
+85
Unit
o
o
C
C
Warnings
•
•
Electrostatic Sensitive Device (ESD)
Avoid ultrasonic exposure
Links to Additional Technical Information
PCB Layout Tips
S-Parameters
Qualification Flowchart
Soldering Profile
Other Technical Information
Sawtek’s liability is limited only to the Surface Acoustic Wave (SAW) component(s) described in this data sheet. Sawtek does not accept any liability for
applications, processes, circuits or assemblies which are implemented using any Sawtek component described in this data sheet.
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