Preliminary Data Sheet
Part Number 855993
220.38 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
24-Aug-2001
Page 1 of 5
Features
For PCS handset IF applications
Usable bandwidth of 1.260 MHz
Low
loss
High attenuation at tones
Single-ended or balanced operation
Ceramic Surface Mount Package (SMP)
Small
size
Package
Pin Configuration
Surface Mount 5.00 x 5.00 x 1.32 mm
Bottom View
4
8
7
6
5
3
2
1
Pin No. Description
1
Input return
2
Input
5
Output
6
Output return
3,4,7,8
Case ground
1.32 NOM.
1.52 MAX.
0.66
1.27
1.27
0.64
2.08
5.00
5.00
Dimensions shown are nominal in millimeters
All tolerances are
0.15mm except overall
length and width
0.15/
0.10mm
Body: Al
2
O
3
ceramic
Lid: Kovar, Ni plated
Terminations: Au plating 0.5 - 1.0
m,
over a 2 - 6
m Ni plating
Preliminary Data Sheet
Part Number 855993
220.38 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
24-Aug-2001
Page 2 of 5
Electrical Specifications
(1)
Operating Temperature Range:
(2)
-30 to +80
o
C
Parameter
(3)
Minimum
Typical
Maximum
Unit
Center Frequency, f
0
-
220.38
-
MHz
Insertion Loss at 220.38 MHz
Excluding losses due to matching
Including losses in matching test circuit shown below
-
-
6.0
9.0
8.0
11.0
dB
dB
Lower 5 dB Point
Upper 5 dB Point
-
221.01
-
-
219.75
-
MHz
MHz
Amplitude Variation
220.08 - 220.68 MHz
-
0.4
1.2
dB p-p
Phase Ripple
219.765 - 220.995 MHz
-
1.90
3.5
deg RMS
Attenuation
(4)
219.13 MHz
221.63 MHz
218.33 MHz
222.43 MHz
35
35
33
33
40
41
38
41
-
-
-
-
dB
dB
dB
dB
Optimal Source Impedance:
(5)
-
1380
||71nH
-
Optimal Load Impedance:
(5)
-
4300
||164nH
-
Notes:
1. All specifications are based on the test circuit shown below
2. In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over
temperature
3. Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances
4. Relative to insertion loss at 220.38 MHz
5. This is the complex conjugate of the unmatched filter's impedance resulting in maximum power transfer
Test Circuit:
500
Single-ended
input
1,3
4,7,8
500
43nH
2
5
270nH
1000
6
15nH
270nH
2pF
2pF
1000
Balanced
output
Preliminary Data Sheet
Part Number 855993
220.38 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
24-Aug-2001
Page 3 of 5
Typical Performance
(at +25
o
C)
Preliminary Data Sheet
Part Number 855993
220.38 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
24-Aug-2001
Page 4 of 5
Matching Schematics
Actual matching values may vary due to PCB layout and parasitics
50
Single-ended
input
1,3
4,7,8
50
16nH
2
5
270nH
1000
6
47nH
270nH
2pF
2pF
1000
balanced
output
500
Single-ended
input
1,3
4,7,8
500
43nH
2
5
270nH
1000
6
15nH
270nH
2pF
2pF
1000
Balanced
output
Marking
PCB Footprint
Date code
S
JJJYM
ID dot
logo
Sawtek
code
Marking
1.47
5.20
2.28
.84
1.47
.84
.43
.71
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
12.0
Section A-A
A
A
0.3
1.8
5.25
5.25
1.5
1.5
8.0
4.0
2.0
5.5
1.75
12.8
2.7
13.0
20.2
330
logo
Sawtek
ID dot
2.0
102
Direction of travel
Dimensions shown are nominal in millimeters
Packaging quantity: 4000 units/reel
Preliminary Data Sheet
Part Number 855993
220.38 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
24-Aug-2001
Page 5 of 5
Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Unit
Operating Temperature Range
T
-30
+80
o
C
Storage Temperature Range
T
stg
-40
+85
o
C
Warnings
Electrostatic Sensitive Device (ESD)
Avoid ultrasonic exposure
Links to Additional Technical Information
PCB Layout Tips
Qualification Flowchart
Soldering Profile
S-Parameters
Reel and Packaging Label
Other Technical Information
Contact Information
PO Box 609501
Orlando, FL 32860-9501
USA
Phone: +1 (407) 886-8860
Fax: +1 (407) 886-7061
Email:
custservice@sawtek.com
Web:
www.sawtek.com
Or contact one of our worldwide
network of
sales offices,
representatives or distributors
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