Data Sheet
Features
•
•
•
•
•
•
For wireless data applications
Usable bandwidth of 1 MHz
High attenuation
Single-ended operation at 50Ω
Ceramic Surface Mount Package (SMP)
Small size
Part Number 855377
350 MHz SAW Filter
•
Package
Surface Mount 7.01 x 5.51 x 1.63 mm
Pin Configuration
Bottom View
1
2
3
12
0.76
1.63 NOM.
1.78 MAX.
4
5
6
11
10
7.01
1.27
9
8
7
1.70
5.51
1.27
0.79
1.14
Pin No.
4
6
10
12
1,2,3,5
7,8,9,11
Description
Output
Output return
Input
Input return
Case Ground
Case Ground
Dimensions shown are nominal in millimeters
All tolerances are
±0.15mm
except overall
length and width
±0.13mm
Body:
Al
2
O
3
ceramic
Lid:
Kovar, Ni
plated
Terminations:
Au
plating 0.5 - 1.0µm,
over a 2 - 6µm
Ni
plating
Subject to change or obsolescence without notice
Rev -
08-Feb-2002
Page 1 of 5
Data Sheet
Operating Temperature Range:
(2)
-10 to +60
o
C
Part Number 855377
350 MHz SAW Filter
Electrical Specifications
(1)
Parameter
(3)
Center Frequency
Insertion Loss at 350 MHz
1 dB Bandwidth
(4)
3 dB Bandwidth
(4)
30 dB Bandwidth
(4)
40 dB Bandwidth
(4)
45 dB Bandwidth
(4)
Amplitude Variation
349.5 - 350.5 MHz
Group Delay Variation
349.5 - 350.5 MHz
Source Impedance
(5)
Load Impedance
(5)
Notes:
1.
2.
3.
4.
5.
Minimum
-
-
1
1.8
-
-
-
-
-
-
-
Typical
350
8.2
1.57
2.4
4.76
5.3
5.6
0.35
72
50
50
Maximum
-
10
-
-
5.1
5.6
15
1
200
-
-
Unit
MHz
dB
MHz
MHz
MHz
MHz
MHz
dB p-p
nsec
Ω
Ω
All specifications are based on the test circuit shown below
In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over
temperature
Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances
All attenuation measurements are measured relative to insertion loss at 350 MHz
This is the optimum impedance in order to achieve the performance shown
Test Circuit:
Actual matching values may vary due to PCB layout and parasitics
22nH
10
4
20pF
50Ω
22nH
50
Ω
Single-ended
50Ω
26pF
1,2,3,5,6
7,8,9,11,12
Subject to change or obsolescence without notice
Rev -
08-Feb-2002
Page 2 of 5
Data Sheet
Part Number 855377
350 MHz SAW Filter
Typical Performance
(at +25
o
C)
Subject to change or obsolescence without notice
Rev -
08-Feb-2002
Page 3 of 5
Data Sheet
Actual matching values may vary due to PCB layout and parasitics
22nH
10
4
22nH
Part Number 855377
350 MHz SAW Filter
Matching Schematics
50
Ω
Single-ended
50Ω
26pF
1,2,3,5,6
7,8,9,11,12
20pF
50Ω
Marking
1.34
PCB Footprint
.99
.28
1.34
.28
Date code
ID dot
SAWTEK
855377
XXXXXX
5.71
.99
7.21
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
2.7
16.8
Ø330
Pad 1 ID dot
0.3
2.0
4.0
Ø1.5
A
1.75
7.5
7.3
16.0
Ø102
Direction of travel
Ø20.2
Ø13.0
2.0
2.2
Section A-A
5.8
8.0
Ø1.5
A
Dimensions shown are nominal in millimeters
Packaging quantity: 3000 units/reel
Subject to change or obsolescence without notice
Rev -
08-Feb-2002
Page 4 of 5
Data Sheet
Maximum Ratings
Parameter
Operating Temperature Range
Storage Temperature Range
Part Number 855377
350 MHz SAW Filter
Symbol
T
T
stg
Minimum
-10
-40
Maximum
+60
+85
Unit
o
o
C
C
Warnings
•
•
Electrostatic Sensitive Device (ESD)
Avoid ultrasonic exposure
Links to Additional Technical Information
PCB Layout Tips
S-Parameters
Qualification Flowchart
Soldering Profile
Other Technical Information
Contact Information
PO Box 609501
Orlando, FL 32860-9501
USA
Subject to change or obsolescence without notice
Phone: +1 (407) 886-8860
Fax: +1 (407) 886-7061
Email:
custservice@sawtek.com
Web:
www.sawtek.com
Rev -
Or contact one of our worldwide
network of
sales offices,
representatives or distributors
08-Feb-2002
Page 5 of 5
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