All specifications are based on the test circuit shown on page 4
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
All attenuation measurements are relative to minimum insertion loss
This is the optimum impedance in order to achieve the performance shown
Subject to change or obsolescence without notice
Rev -
29-Oct-2002
Page 2 of 5
Data Sheet
Part Number 855958
118.579 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev -
29-Oct-2002
Page 3 of 5
Data Sheet
Actual matching values may vary due to PCB layout and parasitics
270nH
10
5
Part Number 855958
118.579 MHz SAW Filter
Matching Schematics
330nH
50
Ω
Single-ended
50Ω
270nH
1,2,3,4
6,7,8,9
180nH
50Ω
Marking
PCB Footprint
8.84
SAWTEK
855958
XXXXXX
6.70
2.00
1.22
.69
The date code consists of: day of the current year (Julian,
3 digits), last digit of the year (1 digit) and hour (2 digits)
This footprint represents a recommendation only
Dimensions shown are nominal in millimeters
Tape and Reel
24.8
2.7
Ø330
ID dot
0.3
2.0
4.0
Ø1.5
A
1.75
11.5
13.9
24
Ø102
Direction of travel
Ø20.2
Ø13.0
2.0
2.3
Section A-A
7.1
12.0
Ø1.5
A
Dimensions shown are nominal in millimeters
Packaging quantity: 2000 units/reel
Subject to change or obsolescence without notice
Rev -
29-Oct-2002
Page 4 of 5
Data Sheet
Parameter
Operating Temperature Range
Storage Temperature Range
T
T
stg
Part Number 855958
118.579 MHz SAW Filter
Maximum Ratings
Symbol
Minimum
-40
-60
Maximum
+85
+125
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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