Data Sheet
Part Number 855728
881.5 MHz SAW Filter
Features
For AMPS, CDMA and TDMA applications
Usable bandwidth 25 MHz
High attenuation
No impedance matching required for operation
at 50
Single-ended operation
Ceramic Surface Mount Package (SMP)
Hermetic
Package
Pin Configuration
Surface Mount 3.00 x 3.00 x 1.22 mm
Bottom View
6
5
4
3
2
1
0.69
1.22 NOM.
1.32 MAX.
0.75
0.60
1.50
0.75
3.00
3.00
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
Pin No.
Description
2,5
Input/Output
1,3,4,6
Case ground
Subject to change or obsolescence without notice
Rev B 28-Jul-2004
Page 1 of 5
Data Sheet
Part Number 855728
881.5 MHz SAW Filter
Electrical Specifications
(1)
Operating Temperature Range:
(2)
-30 to +80
o
C
Parameter
(3)
Minimum
Typical
Maximum
Unit
Center Frequency
- 881.5 -
MHz
Maximum Insertion Loss
869
-
894
MHz
-
2.7
3.5
dB
Amplitude Variation
869
-
894
MHz
-
0.8
1.5
dB p-p
Absolute Attenuation
10
-
779
MHz
779
-
849
MHz
914
-
970
MHz
970
-
1049
MHz
1049
-
2000
MHz
45
40
25
45
40
50
45
33
55
50
-
-
-
-
-
dB
dB
dB
dB
dB
Input/Output VSWR
869
-
894
MHz
-
1.7:1
2.5:1
Source Impedance:
(4)
- 50 -
Load Impedance:
(4)
- 50 -
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. This is the optimum impedance in order to achieve the performance shown
Test Circuit:
50
Single-ended
1,3,4,6
2
5
50
50
No impedance matching
required
Subject to change or obsolescence without notice
Rev B 28-Jul-2004
Page 2 of 5
Data Sheet
Part Number 855728
881.5 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev B 28-Jul-2004
Page 3 of 5
Data Sheet
Part Number 855728
881.5 MHz SAW Filter
Matching Schematics
50
Single-ended
1,3,4,6
2
5
50
50
No impedance matching
required
Marking
PCB Footprint
Marking
code
Date code
B
JJJYM
logo
ID dot
Sawtek
.96
3.20 SQ
1.27
.38
.81
1.70
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 B 28-Jul-2004
Page 4 of 5
Data Sheet
Part Number 855728
881.5 MHz SAW Filter
Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Unit
Operating Temperature Range
T
-30
+80
o
C
Storage Temperature Range
T
stg
-40 +85
o
C
Input Power
P
in
- +10
dBm
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 B 28-Jul-2004
Page 5 of 5
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