Including losses in matching test circuit shown below
Minimum
-
-
-
-
184.230
-
-
33
33
33
33
33
33
33
33
45
38
33
33
38
45
-
-
Typical
183.6
7.4
9.8
182.893
184.311
0.4
1.6
45
40
40
38
40
36
40
40
60
50
38
36
48
50
800Ω||49nH
380Ω||39.5nH
Maximum
-
9.2
11.6
182.970
-
1.25
3.2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Unit
MHz
dB
dB
MHz
MHz
dB p-p
deg RMS
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Ω
Ω
Lower 5 dB Point
Upper 5 dB Point
Amplitude Variation
183.3 - 183.9 MHz
RMS Phase Variation
182.97 - 184.23 MHz
Attenuation
(4)
f
0
- 2.05 MHz
f
0
- 1.70 MHz
f
0
- 1.25 MHz
f
0
- 0.90 MHz
f
0
+ 0.90 MHz
f
0
+ 1.25 MHz
f
0
+ 1.70 MHz
f
0
+ 2.05 MHz
Rejection
(4)
10.0 - 171.6 MHz
171.6 - 174.6 MHz
174.6 - 182.7 MHz
184.5 - 192.6 MHz
192.6 - 195.6 MHz
195.6 - 367.2 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
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 manufacturing tolerances
Relative to insertion loss at 183.6 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
47pF
9
4
120pF
1000Ω
Single-ended
input
1000
Ω
47nH
0.5pF
1,2,3
6,7,8,10
5
120pF
43nH
500
Ω
500Ω
Balanced
output
Subject to change or obsolescence without notice
Rev B
04-Mar-2003
Page 2 of 5
Data Sheet
Part Number 856234
183.6 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev B
04-Mar-2003
Page 3 of 5
Data Sheet
Actual matching values may vary due to PCB layout and parasitics
47pF
9
4
120pF
Part Number 856234
183.6 MHz SAW Filter
Matching Schematics
1000Ω
Single-ended
input
1000
Ω
47nH
0.5pF
1,2,3
6,7,8,10
5
120pF
43nH
500
Ω
500Ω
Balanced
output
68pF
9
4
120pF
1000Ω
Balanced
input
1000
Ω
56nH
0.5pF
10
68pF
1,2,3
6,7,8
5
120pF
43nH
500
Ω
500Ω
Balanced
output
Marking
PCB Footprint
7.20
1.27
ID dot
SAWTEK
856234
XXXXXX
Date code
5.70
2.54
1.60
0.80
1.20
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
Pad 1 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 B
04-Mar-2003
Page 4 of 5
Data Sheet
Parameter
Operating Temperature Range
Storage Temperature Range
Part Number 856234
183.6 MHz SAW Filter
Maximum Ratings
Symbol
T
T
stg
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.
[i=s]This post was last edited by paulhyde on 2014-9-15 09:35[/i] Hehe... I have already made money for the author, so I will share it with you, don't blame me! :)...
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