Preliminary Data Sheet
Part Number 855094
325 MHz SAW Filter
Features
• For broadband applications
• Typical 3 dB bandwidth of 10 MHz
• Single-ended or differential operation
• 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
3 Input
4 Input return
9 Output
10 Output return
1,2,5,6 Case ground
7,8,11,12 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/-0.13mm
Body: Al2O3 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 - 06-Jan-2003 Page 1 of 5
Preliminary Data Sheet
Part Number 855094
325 MHz SAW Filter
Electrical Specifications (1)
Operating Temperature Range: (2) -10 to +60 oC
Parameter (3) Minimum Typical Maximum Unit
Center Frequency - 325 - MHz
Minimum Insertion Loss - 9.6 14 dB
Lower 3 dB Bandedge (4)
Upper 3 dB Bandedge
-
330
318.99
332.02
320
-
MHz
MHz
Lower 40 dB Bandedge (4)
Upper 40 dB Bandedge
307.5
-
315.4
339.1
-
342.5
MHz
MHz
Amplitude Ripple - 0.6 1.0 dB
Phase Linearity - 9 - deg
Group Delay Variation - 48 75 nsec
Relative Attenuation (4)
10 - 220 MHz
220 - 300 MHz
350 - 355 MHz
355 - 375 MHz
375 - 380 MHz
380 - 405 MHz
405 - 500 MHz
50
45
40
35
40
35
40
55
50
45
40
45
40
45
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
Source Impedance: (5) - 50 -
Ω
Load Impedance: (5) - 50 -
Ω
Substrate Material - YZ LiNbO3 - -
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 minimum insertion loss
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
50Ω
Single-ended
1,2,4,5,6
7,8,10,11,12
50
Ω
7pF
15nH
12pF
39
18nH
50
Ω
Subject to change or obsolescence without notice Rev - 06-Jan-2003 Page 2 of 5
Preliminary Data Sheet
Part Number 855094
325 MHz SAW Filter
Typical Performance (at +25oC)
Subject to change or obsolescence without notice Rev - 06-Jan-2003 Page 3 of 5
Preliminary Data Sheet
Part Number 855094
325 MHz SAW Filter
Matching Schematics
Actual matching values may vary due to PCB layout and parasitics
50Ω
Single-ended
1,2,4,5,6
7,8,10,11,12
50
Ω
7pF
15nH
12pF
39
18nH
50
Ω
Marking PCB Footprint
Date code
855094
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
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
Subject to change or obsolescence without notice Rev - 06-Jan-2003 Page 4 of 5
Preliminary Data Sheet
Part Number 855094
325 MHz SAW Filter
Maximum Ratings
Parameter Symbol Minimum Typical Maximum Unit
Operating Temperature Range T -10 +25 +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
S-Parameters
Sawtek’s liability is limited only to the Surface Acoustic Wave (SAW) component(s) described in this data sheet. Sawtek does not accept any liability for
applications, processes, circuits or assemblies which are implemented using any Sawtek component described in this data sheet.
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 - 06-Jan-2003 Page 5 of 5
