Data Sheet
Part Number 855395
141 MHz SAW Filter
Features
For CDMA basestation IF applications
Usable bandwidth of 1.18 MHz
Low loss
High attenuation
Single-ended operation
Ceramic Surface Mount Package (SMP)
Small size
Package
Pin Configuration
Surface Mount 19.00 x 6.50 x 1.75 mm
Bottom View
10 9 8
7 6
5
4
3
2
1
Pin No. Description
1
Input
5
Output
return
6
Output
10
Input
return
2,3,4
Case
ground
7,8,9
Case
ground
R0.51
1.91
2.31
1.02
1.80
0.76
19.0
6.50
1.75 NOM.
1.96 MAX.
Dimensions shown are nominal in millimeters
All tolerances are
0.15mm except overall
length and width +0.15mm/-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
08-Mar-2004
Page 1 of 5
Data Sheet
Part Number 855395
141 MHz SAW Filter
Electrical Specifications
(1)
Operating Temperature Range:
(2)
0 to +85
o
C
Parameter
(3)
Minimum
Typical
Maximum
Unit
Center Frequency, f
0
- 141 -
MHz
Insertion Loss at 141MHz
- 11.7
14
dB
Amplitude Variation
140.475 - 141.525 MHz
-
0.67
1
dB p-p
Attenuation
139.75
140.41
141.59
142.25
42.5
-
-
42.5
48
1
1
48
-
3.75
3.75
-
dB
dB
dB
dB
Phase Linearity
140.37 - 141.63 MHz
-
1.2
2
Deg RMS
Average Delay
140.37 - 141.63 MHz
2.34
2.44
2.54
sec
Group Delay Variation
140.475 - 141.525 MHz
-
145
300
nsec
Rejection
79.75
-
139.75
MHz
142.25 - 202.25 MHz
42.5
42.5
>45
>45
-
-
dB
dB
Return Loss
140.475 - 141.525 MHz
10
13
-
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
Manual Test Circuit:
50
Single-ended
2,3,4,5
7,8,9,10
50
56pF
104nH
56pF
1
6
104nH
50
Subject to change or obsolescence without notice
Rev A
08-Mar-2004
Page 2 of 5
Data Sheet
Part Number 855395
141 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev A
08-Mar-2004
Page 3 of 5
Data Sheet
Part Number 855395
141 MHz SAW Filter
Matching Schematics
Actual matching values may vary due to PCB layout and parasitics
50
Single-ended
2,3,4,5
7,8,9,10
50
56pF
104nH
56pF
1
6
104nH
50
Marking
PCB Footprint
XXXXXX
855395
SAWTEK
Date Code
ID Dot
2.00
6.70
8.84
.69
1.22
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
1.5
12.0
2.3
4.0
0.3
2.0
0.20
Section A-A
7.1
19.6
R0.75
1.75
1.5
14.2
28.4
32.0
A
A
ID dot
Direction of travel
330
102
2.7
13.0
20.2
2.0
32.8
Dimensions shown are nominal in millimeters
Packaging quantity: 2000 units/reel
Subject to change or obsolescence without notice
Rev A
08-Mar-2004
Page 4 of 5
Data Sheet
Part Number 855395
141 MHz SAW Filter
Maximum Ratings
Parameter
Symbol
Minimum Typical
Maximum
Unit
Operating Temperature Range
T
0
+25
+85
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
S-Parameters
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
08-Mar-2004
Page 5 of 5
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