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 50Ω
• 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
89 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: Al2O3 ceramic
Lid: Kovar, Ni plated
Terminations: Au plating 0.5 - 1.0µm,
over a 2 - 6µm 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 oC
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 -
Ω
Load Impedance (5) - 50 -
Ω
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 Ω
Single-ended
1,2,3,5,6
7,8,9,11,12
50
Ω
26pF
22nH
20pF
10 4
22nH
50
Ω
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 +25oC)
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 Ω
Single-ended
1,2,3,5,6
7,8,9,11,12
50
Ω
26pF
22nH
20pF
10 4
22nH
50
Ω
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
Ø1.5
8.0
4.0
2.0 A
A
Ø1.5
16.0
7.5
1.75
Pad 1 ID dot
2.0
Ø13.0
Ø20.2
Ø330
16.8
2.7
Direction of travel
Ø102
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 oC
Storage Temperature Range Tstg -40 +85
oC
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
