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
All attenuation measured over the defined frequency range and referenced to minimum insertion loss
Total variation over the defined range
This is the optimum impedance in order to achieve the performance shown
Minimum
-
-
-
382.5
45
40
30
30
35
40
40
-
30
-
-
Typical
374
9
363.5
384.5
50
45
35
35
41
45
45
0.75
40
40
200
200
Maximum
-
10
365.5
-
-
-
-
-
-
-
-
1.0
100
-
-
-
Unit
MHz
dB
MHz
MHz
dB
dB
dB
dB
dB
dB
dB
dB
nsec
dB
Ω
Ω
Test Circuit:
Actual matching values may vary due to PCB layout and parasitics
18pF
2
6
15nH
3
18pF
1,4,5,8
7
22pf
200Ω
22pf
200Ω
Balanced
200Ω
27nH
Subject to change or obsolescence without notice
Rev A
15-Aug-2003
Page 2 of 5
Preliminary Data Sheet
Part Number 856278
374 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev A
15-Aug-2003
Page 3 of 5
Preliminary Data Sheet
Actual matching values may vary due to PCB layout and parasitics
18nH
2
6
10nH
Part Number 856278
374 MHz SAW Filter
Matching Schematics
50Ω
Single-ended
50Ω
6pf
1,3,4,5,7,8
18pf
50Ω
9pF
2
6
12pf
750Ω
Balanced
750Ω
36nH
3
9pF
1,4,5,8
7
12pf
24nH
750Ω
Marking
Marking
code
PCB Footprint
1.70
4.01
1.19
Sawtek
logo
.81
.41
P
JJJYM
ID dot
Date code
.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
ID dot
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
Sawtek
logo
Ø102
Ø20.2
Ø13.0
12.0
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
15-Aug-2003
Page 4 of 5
Preliminary Data Sheet
Maximum Ratings
Parameter
Operating Temperature Range
Storage Temperature Range
Input Power
Part Number 856278
374 MHz SAW Filter
Symbol
T
T
stg
P
in
Minimum
-10
-40
-
Maximum
+85
+85
+10
Unit
C
C
dBm
o
o
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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