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
Passband ripple is the worst case peak to adjacent valley over a frequency range defined by the measured roll off at the passband
edges
This is the optimum impedance in order to achieve the performance shown
Minimum
-
-
4.8
-
-
28
28
-
-
Typical
380
9.5
7.3
0.65
1.1
38
36
50
50
Maximum
-
11
-
1.5
4
-
-
-
-
Unit
MHz
dB
MHz
dB p-p
deg RMS
dB
dB
Ω
Ω
Test Circuit:
Actual matching values may vary due to PCB layout and parasitics
12nH
6
2
18pF
50Ω
15nH
50Ω
Single-ended
50Ω
18pF
1,3,4
5,7,8
Subject to change or obsolescence without notice
Rev A
17-Oct-2005
Page 2 of 5
Preliminary Data Sheet
Part Number 855954
380 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev A
17-Oct-2005
Page 3 of 5
Preliminary Data Sheet
Actual matching values may vary due to PCB layout and parasitics
12nH
6
2
15nH
Part Number 855954
380 MHz SAW Filter
Matching Schematics
50Ω
Single-ended
50Ω
18pF
1,3,4
5,7,8
18pF
50Ω
Marking
Sawtek
logo
Marking
code
PCB Footprint
1.70
4.01
1.19
.81
E
JJJYM
ID dot
Date code
.41
.46
.81
1.19
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
2.7
12.8
Ø330
Sawtek
logo
0.3
2.0
4.0
Ø1.5
A
1.75
5.5
4.1
1.8
Section A-A
4.1
8.0
Ø1.5
A
ID dot
Ø102
12.0
Ø20.2
Ø13.0
2.0
Direction of travel
Dimensions shown are nominal in millimeters
Packaging quantity: 4000 units/reel
Subject to change or obsolescence without notice
Rev A
17-Oct-2005
Page 4 of 5
Preliminary Data Sheet
Maximum Ratings
Parameter
Operating Temperature Range
Storage Temperature Range
Part Number 855954
380 MHz SAW Filter
Symbol
T
T
stg
Minimum
-30
-40
Maximum
+70
+85
Unit
o
o
C
C
Important Notes
Warnings
•
•
•
•
Electrostatic Sensitive Device (ESD)
Avoid ultrasonic exposure
RoHS Compliance
This product complies with EU directive 2002/95/EC (RoHS)
Pb
Solderability
Compatible with JEDEC J-STD-020C
Pb-free
process,
260°C
peak reflow temperature
(see
soldering profile)
Links to Additional Technical Information
PCB Layout Tips
S-Parameters
Qualification Flowchart
RoHS Information
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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