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 for maximum power transfer given a 50 ohm source impedance
Minimum
-
-
-
50
30
18
22
50
-
-
170
-0.75
-
-
Typical
942.5
2.8
0.7
60
38
22
32
60
2.0
2.0
175
0
50
210 || 60nH
Maximum
-
3.7
1.7
-
-
-
-
-
2.4
2.4
180
0.75
-
-
Unit
MHz
dB
dB p-p
dB
dB
dB
dB
dB
-
-
degree
dB
Ω
Ω
Test Circuit:
Actual matching values may vary due to PCB layout and parasitics
1
3
45nH
50Ω
2,5
4
200Ω
50
Ω
Single-ended
Input
200
Ω
Balanced Output
Subject to change or obsolescence without notice
Rev -
05-Mar-2003
Page 2 of 5
Preliminary Data Sheet
Part Number 856190
942.5 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev -
05-Mar-2003
Page 3 of 5
Preliminary Data Sheet
Actual matching values may vary due to PCB layout and parasitics
1
3
Part Number 856190
942.5 MHz SAW Filter
Matching Schematics
50
Ω
Single-ended
Input
200Ω
45nH
50Ω
2,5
4
200
Ω
Balanced Output
Marking
Marking
code
MFG site
PCB Footprint
2.00
L M
1.50
WWY
0.50
ID dot
Date code
0.50
0.75
The date code consists of: WW = 2 digit week,
Y = last digit of year, M = manufacturing site code
This footprint represents a recommendation only
Dimensions shown are nominal in millimeters
Tape and Reel
2.7
8.8
Ø330
ID dot
4.0
0.3
2.0
Ø1.5
A
1.75
2.34
Ø102
Ø20.2
Ø13.0
Direction of travel
2.0
3.5 8.0
4.0
Ø1.0
1.09
Section A-A
1.83
A
Dimensions shown are nominal in millimeters
Packaging quantity: 10000 units/reel
Subject to change or obsolescence without notice
Rev -
05-Mar-2003
Page 4 of 5
Preliminary Data Sheet
Parameter
Operating Temperature Range
Storage Temperature Range
Part Number 856190
942.5 MHz SAW Filter
Symbol
T
T
stg
Maximum Ratings
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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