Preliminary Data Sheet
Part Number 855896
810 MHz SAW Filter
Features
For 802.11a WLAN applications
Usable bandwidth 17 MHz
High attenuation
No impedance matching required for operation
at 200
Balanced operation
Ceramic Surface Mount Package (SMP)
Hermetic
Package
Pin Configuration
Surface Mount 3.00 x 3.00 x 1.22 mm
Bottom View
8
7
6
5
4
3
2
1
Pin No.
Description
1,7
Input
3,5
Output
2,4,6,8
Case
ground
1.20
0.75
0.60
3.00
0.69
0.60
3.00
1.22 NOM.
1.32 MAX.
Dimensions shown are nominal in millimeters
All tolerances are
0.15mm except overall
length and width
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
Subject to change or obsolescence without notice
Rev A
10-Aug-2004
Page 1 of 5
Preliminary Data Sheet
Part Number 855896
810 MHz SAW Filter
Electrical Specifications
(1)
Operating Temperature Range:
(2)
0 to +70
o
C
Parameter
(3)
Minimum
Typical
Maximum
Unit
Center Frequency
- 810 -
MHz
Minimum Insertion Loss
- 2.95 4
dB
Lower 1.5 dB Bandedge
(4)
Upper 1.5 dB Bandedge
-
818.5
798.895
819.857
801.5
-
MHz
MHz
Lower 15.5 dB Bandedge
(4)
Upper 15.5 dB Bandedge
790
-
795.205
827.079
-
830
MHz
MHz
Lower 45 dB Bandedge
(4)
Upper 45 dB Bandedge
760
-
787.65
831.617
-
860
MHz
MHz
Amplitude Variation
801.5
-
818.5
MHz
-
0.63
1.5
dB p-p
Group Delay
801.5
-
818.5
MHz
-
0.07
0.1
sec
Group Delay Variation
801.5
-
818.5
MHz
-
26.17
75
nsec
Minimum Rejection
660
-
760
MHz
860
-
960
MHz
45
45
50.3
50.2
-
-
dB
dB
Source Impedance
(5)
- 200 -
Load Impedance
(5)
- 200 -
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. All attenuation measurements are measured relative to minimum insertion loss
5. This is the optimum impedance in order to achieve the performance shown
Test Circuit:
200
Balanced
2,4,6,8
1
3
200
200
7
5
No impedance matching
required
Subject to change or obsolescence without notice
Rev A
10-Aug-2004
Page 2 of 5
Preliminary Data Sheet
Part Number 855896
810 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev A
10-Aug-2004
Page 3 of 5
Preliminary Data Sheet
Part Number 855896
810 MHz SAW Filter
Matching Schematics
200
Balanced
2,4,6,8
1
3
200
200
7
5
No impedance matching
required
Marking
PCB Footprint
Marking
code
AB
Date code
JJJYM
logo
ID dot
Sawtek
.96
.81
.38
.81
.23
1.39
3.20 SQ
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
3.25
Section A-A
1.75
1.5
4.0
A
12.0
5.5
1.5
4.0
2.0
3.25
1.4
0.21
A
102
20.2
13.0
2.0
Direction of travel
330
12.8
2.7
logo
Sawtek
ID dot
Dimensions shown are nominal in millimeters
Packaging quantity: 5000 units/reel
Subject to change or obsolescence without notice
Rev A
10-Aug-2004
Page 4 of 5
Preliminary Data Sheet
Part Number 855896
810 MHz SAW Filter
Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Unit
Operating Temperature Range
T
0
+70
o
C
Storage Temperature Range
T
stg
-40 +85
o
C
Warnings
Electrostatic Sensitive Device (ESD)
Avoid ultrasonic exposure
Material Content
Does not contain lead (Pb) or other RoHS restricted materials
Links to Additional Technical Information
PCB Layout Tips
Qualification Flowchart
S-Parameters
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.
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
Soldering Profile
Other Technical Information
Subject to change or obsolescence without notice
Rev A
10-Aug-2004
Page 5 of 5
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