Data Sheet
Part Number 855860
1842.5 MHz SAW Filter
Subject to change or obsolescence without notice
Rev A 14-Sep-2001
Page 1 of 5
Features
For DCS applications
Usable bandwidth 75 MHz
Low
loss
No impedance matching required for operation
at 50
Single-ended
operation
Ceramic Surface Mount Package (SMP)
Small
size
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
Data Sheet
Part Number 855860
1842.5 MHz SAW Filter
Subject to change or obsolescence without notice
Rev A 14-Sep-2001
Page 2 of 5
Electrical Specifications
(1)
Operating Temperature Range:
(2)
-20 to +70
o
C
Parameter
(3)
Minimum
Typical
Maximum
Unit
Center Frequency
-
1842.5
-
MHz
Maximum Insertion Loss
1805 - 1815 MHz
1805 - 1815 MHz
1815 - 1870 MHz
1870 - 1880 MHz
(+15 to +70
o
C)
( -20 to +15
o
C)
-
-
-
-
2.8
-
1.9
2.1
3.3
3.7
3
3.6
dB
dB
dB
dB
Absolute Attenuation
10 - 1720 MHz
1720 - 1765 MHz
1765 - 1785 MHz
1920 - 1980 MHz
1980 - 2410 MHz
2410 - 3120 MHz
3120 - 4000 MHz
20
25
8
15
17
20
17
23
29
23
27
24
24
25
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
Input/Output Return Loss
1805 - 1880 MHz
6
9.2
-
dB
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
Data Sheet
Part Number 855860
1842.5 MHz SAW Filter
Subject to change or obsolescence without notice
Rev A 14-Sep-2001
Page 3 of 5
Typical Performance
(at +25
o
C)
Data Sheet
Part Number 855860
1842.5 MHz SAW Filter
Subject to change or obsolescence without notice
Rev A 14-Sep-2001
Page 4 of 5
Matching Schematics
50
Single-ended
1,3,4,6
2
5
50
50
No impedance matching
required
Marking
PCB Footprint
Marking
code
Date code
V
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
Data Sheet
Part Number 855860
1842.5 MHz SAW Filter
Subject to change or obsolescence without notice
Rev A 14-Sep-2001
Page 5 of 5
Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Unit
Operating Temperature Range
T
-20
+70
o
C
Storage Temperature Range
T
stg
-40
+85
o
C
RF Power
P
in
-
+13
dBm
Warnings
Electrostatic Sensitive Device (ESD)
Avoid ultrasonic exposure
Links to Additional Technical Information
PCB Layout Tips
Qualification Flowchart
Soldering Profile
S-Parameters
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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