Data Sheet
Part Number 855377
350 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
08-Feb-2002
Page 1 of 5
Features
For wireless data applications
Usable bandwidth of 1 MHz
High attenuation
Single-ended operation at 50
Ceramic Surface Mount Package (SMP)
Small size
Package
Pin Configuration
Surface Mount 7.01 x 5.51 x 1.63 mm
Bottom View
12
11
10
4
5
6
8
9
7
3
2
1
Pin No.
Description
4
Output
6
Output
return
10
Input
12
Input
return
1,2,3,5
Case
Ground
7,8,9,11
Case
Ground
1.63 NOM.
1.78 MAX.
5.51
0.76
1.14
1.27
1.70
0.79
1.27
7.01
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 - 1.0
m,
over a 2 - 6
m Ni plating
Data Sheet
Part Number 855377
350 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
08-Feb-2002
Page 2 of 5
Electrical Specifications
(1)
Operating Temperature Range:
(2)
-10 to +60
o
C
Parameter
(3)
Minimum
Typical
Maximum
Unit
Center Frequency
- 350 -
MHz
Insertion Loss at 350 MHz
- 8.2
10
dB
1 dB Bandwidth
(4)
1 1.57 -
MHz
3 dB Bandwidth
(4)
1.8 2.4 -
MHz
30 dB Bandwidth
(4)
- 4.76
5.1
MHz
40 dB Bandwidth
(4)
- 5.3
5.6
MHz
45 dB Bandwidth
(4)
- 5.6
15
MHz
Amplitude Variation
349.5
-
350.5
MHz
-
0.35
1
dB p-p
Group Delay Variation
349.5
-
350.5
MHz
-
72
200
nsec
Source Impedance
(5)
- 50 -
Load Impedance
(5)
- 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. All attenuation measurements are measured relative to insertion loss at 350 MHz
5. 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
50
Single-ended
1,2,3,5,6
7,8,9,11,12
50
26pF
22nH
20pF
10
4
22nH
50
Data Sheet
Part Number 855377
350 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
08-Feb-2002
Page 3 of 5
Typical Performance
(at +25
o
C)
Data Sheet
Part Number 855377
350 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
08-Feb-2002
Page 4 of 5
Matching Schematics
Actual matching values may vary due to PCB layout and parasitics
50
Single-ended
1,2,3,5,6
7,8,9,11,12
50
26pF
22nH
20pF
10
4
22nH
50
Marking
PCB Footprint
Date code
855377
SAWTEK
ID dot
XXXXXX
5.71
.99
7.21
1.34
1.34
.99
.28
.28
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
Section A-A
0.3
2.2
7.3
5.8
1.5
8.0
4.0
2.0
A
A
1.5
16.0
7.5
1.75
Pad 1 ID dot
2.0
13.0
20.2
330
16.8
2.7
Direction of travel
102
Dimensions shown are nominal in millimeters
Packaging quantity: 3000 units/reel
Data Sheet
Part Number 855377
350 MHz SAW Filter
Subject to change or obsolescence without notice
Rev -
08-Feb-2002
Page 5 of 5
Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Unit
Operating Temperature Range
T
-10
+60
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
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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