Data Sheet
Part Number 855914
326.4 MHz SAW Filter
Subject to change or obsolescence without notice Rev C 09-Sep-2002 Page 1 of 5
Features
• For 3G applications
• 15 MHz bandwidth for high data rates
• 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
10 Input
1,2,3,5,6
7,8,9,11,12
Case ground
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 855914
326.4 MHz SAW Filter
Subject to change or obsolescence without notice Rev C 09-Sep-2002 Page 2 of 5
Electrical Specifications (1)
Temperature Range: (2) -10 to +80 oC
Parameter (3) Minimum Typical Maximum Unit
Center Frequency - 326.4 - MHz
Minimum Insertion Loss - 12.61 17 dB
2 dB Lower Frequency
2 dB Upper Frequency
2 dB Bandwidth
-
333.9
15
317.77
335.18
17.4
318.9
-
-
MHz
MHz
MHz
40 dB Lower Frequency
40 dB Upper Frequency
40 dB Bandwidth
313.9
-
-
314.62
338.31
23.69
-
338.9
25
MHz
MHz
MHz
Relative Attenuation
10 - 276.4 MHz
276.4 - 306.4 MHz
346.4 - 376.4 MHz
376.4 - 450 MHz
50
45
45
50
60
51
56
64
-
-
-
-
dB
dB
dB
dB
Amplitude Ripple
323.9 - 328.9 MHz
-
0.2
0.5
dB p-p
Group Delay Variation
318.9 - 333.9 MHz
-
24
50
nsec
Input VSWR
318.9 - 333.9 MHz
-
1.33:1
2.0:1
-
Output VSWR
318.9 - 333.9 MHz
-
1.34:1
2.0:1
-
Source Impedance (4) - 50 -
Ω
Load Impedance (4) - 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. 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
18pf
27nH
33pf
10 4
50
Ω
Data Sheet
Part Number 855914
326.4 MHz SAW Filter
Subject to change or obsolescence without notice Rev C 09-Sep-2002 Page 3 of 5
Typical Performance (at +25oC)
Data Sheet
Part Number 855914
326.4 MHz SAW Filter
Subject to change or obsolescence without notice Rev C 09-Sep-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
18pf
27nH
33pf
10 4
50
Ω
Marking PCB Footprint
Date code
855914
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
Data Sheet
Part Number 855914
326.4 MHz SAW Filter
Subject to change or obsolescence without notice Rev C 09-Sep-2002 Page 5 of 5
Maximum Ratings
Parameter Symbol Minimum Maximum Unit
Operating Temperature Range T -10 +80 oC
Storage Temperature Range Tstg -40 +85
oC
Input Power Pin - +15 dBm
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
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
