Including losses in matching test circuit shown below
Minimum
-
-
-
-
204.3
-
-
40
40
40
40
-
-
Typical
204
2.9
6.1
203.56
204.43
0.6
26
45.8
45.6
43.5
46.4
8Ω||99nH
13Ω||138nH
Maximum
-
5.3
8.5
203.70
-
1
200
-
-
-
-
-
-
Unit
MHz
dB
dB
MHz
MHz
dB p-p
nsec
dB
dB
dB
dB
Ω
Ω
1 dB Lower Frequency
1 dB Upper Frequency
Amplitude Variation
203.7 - 204.3 MHz
Group Delay Variation
203.7 - 204.3 MHz
Rejection
(4)
194 - 200 MHz
200 - 201.5 MHz
206.5 - 209 MHz
209 - 214 MHz
Optimal Source Impedance
(5)
Optimal Load Impedance
(5)
Notes:
1.
2.
3.
4.
5.
All specifications are based on the test circuit shown below
This specification is valid for room temperature only
Electrical margin has been built into the design to account for the variations due to manufacturing tolerances
Relative to Insertion loss at 204 MHz
This is the complex conjugate of the unmatched filter’s impedance resulting in maximum power transfer
Test Circuit:
Actual matching values may vary due to PCB layout and parasitics
3pF
10
4
1.5pF
12
3pF
1,2,3,5
7,8,9,11
6
4pF
4pF
1000
Ω
500
Ω
Balanced
input
500
Ω
1pF
68nH
82nH
1000
Ω
Balanced
Output
Subject to change or obsolescence without notice
Rev A
29-Apr-2003
Page 2 of 5
Preliminary Data Sheet
Part Number 855773
204 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev A
29-Apr-2003
Page 3 of 5
Preliminary Data Sheet
Actual matching values may vary due to PCB layout and parasitics
3pF
10
4
1.5pF
12
3pF
1,2,3,5
7,8,9,11
6
Part Number 855773
204 MHz SAW Filter
Matching Schematics
4pF
1000
Ω
500
Ω
Balanced
input
500
Ω
1pF
68nH
82nH
1000
Ω
Balanced
Output
4pF
Marking
1.34
PCB Footprint
.99
.28
1.34
.28
Date code
ID dot
SAWTEK
855773
XXXXXX
5.71
.99
7.21
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
7.3
16.0
Ø102
Direction of travel
Ø20.2
Ø13.0
2.0
2.2
Section A-A
5.8
8.0
Ø1.5
A
Dimensions shown are nominal in millimeters
Packaging quantity: 3000 units/reel
Subject to change or obsolescence without notice
Rev A
29-Apr-2003
Page 4 of 5
Preliminary Data Sheet
Maximum Ratings
Parameter
Operating Temperature Range
Storage Temperature Range
Part Number 855773
204 MHz SAW Filter
Symbol
T
T
stg
Minimum
-10
-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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