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
Relative to insertion loss at 350MHz
This is the optimum impedance in order to achieve the performance shown
Minimum
-
-
-
350.4
0.8
348.9
-
-
347.3
-
-
-
-
-
Typical
350
8
349.39
350.60
1.21
349.07
350.89
1.82
347.54
352.41
4.87
135
50
50
Maximum
11
349.6
-
-
-
351.1
2.2
-
352.7
5.4
200
-
-
Unit
MHz
dB
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
nsec
Ω
Ω
Test Circuit:
10nH
4
9
22pF
50Ω
8.2nH
50
Ω
Single-ended
50Ω
33pF
1,2,3,5
6,7,8,10
Subject to change or obsolescence without notice
Rev -
26-Mar-2004
Page 2 of 5
Preliminary Data Sheet
Part Number 856271
350 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev -
26-Mar-2004
Page 3 of 5
Preliminary Data Sheet
Actual matching values may vary due to PCB layout and parasitics
10nH
4
9
8.2nH
Part Number 856271
350 MHz SAW Filter
Matching Schematics
50
Ω
Single-ended
50Ω
33pF
1,2,3,5
6,7,8,10
22pF
50Ω
Marking
1.19
PCB Footprint
9.29
1.19
SAWTEK
856271
XXXXXX
5.00
1.70
1.53
1.01
3.55
1.01
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
2.7
16.8
Ø330
ID dot
0.3
2.0
4.0
Ø1.5
A
1.75
7.5
9.4
Ø102
Ø20.2
Ø13.0
16.0
2.0
Direction of travel
1.6
Section A-A
5.1
8.0
Ø1.5
A
Dimensions shown are nominal in millimeters
Packaging quantity: 4000 units/reel
Subject to change or obsolescence without notice
Rev -
26-Mar-2004
Page 4 of 5
Preliminary Data Sheet
Maximum Ratings
Parameter
Operating Temperature Range
Storage Temperature Range
Part Number 856271
350 MHz SAW Filter
Symbol
T
T
stg
Minimum
-20
-40
Maximum
+70
+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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