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Preliminary Data Sheet
Features
* * * * * * * * For ISM band applications Usable bandwidth 26 MHz Low loss High attenuation No impedance matching required for operation at 50 Single-ended operation Chip Scale Package (CSP) Small size
Part Number 856327 915 MHz SAW Filter
*
Package
Surface Mount 2.00 x 1.50 x 0.76 mm
Pin Configuration
Bottom View
1
2
0.76 NOM. 0.84 MAX. 2.00 1.80
4
3
1.50
1.30 0.42
Pin No. 1 3 2,4
Description Input Output Case ground
0.25x45 CHAMFER
0.56
Dimensions shown are nominal in millimeters All tolerances are 0.10mm Body: Al2O3 ceramic Lid: Kovar or Alloy 42, Au over Ni plated Terminations: Au plating 0.5 - 1.0m, over a 2 - 6m Ni plating
Subject to change or obsolescence without notice
Rev -
15-Dec-2003
Page 1 of 5
Preliminary Data Sheet
Operating Temperature Range: (2) -30 to +85 oC
Part Number 856327 915 MHz SAW Filter
Electrical Specifications (1)
Parameter (3)
Center Frequency Maximum Insertion Loss 902 - 928 MHz Absolute Attenuation 10 - 857.5 MHz 857.5 - 882.5 MHz 970 - 1005 MHz 1005 - 1110 MHz 1110 - 3000 MHz Amplitude Ripple 902 - 928 MHz Group Delay Variation 902 - 928 MHz Input/Output Return Loss 902 - 928 MHz Source Impedance (5) Load Impedance (5) Notes:
1. 2. 3. 4. 5. 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 Typical values are given at 25 oC This is the optimum impedance in order to achieve the performance shown
Minimum
40 35 35 40 30 10 -
Typical (4)
915 2.3 47 43 40 50 30 0.35 15 14 50 50
Maximum
3.0 1 50 -
Unit
MHz dB dB dB dB dB dB dB p-p nS p-p dB
Test Circuit:
1 3 50
50 Single-ended
50
2,4
No impedance matching required
Subject to change or obsolescence without notice
Rev -
15-Dec-2003
Page 2 of 5
Preliminary Data Sheet
Part Number 856327 915 MHz SAW Filter
Typical Performance (at +25oC)
Subject to change or obsolescence without notice
Rev -
15-Dec-2003
Page 3 of 5
Preliminary Data Sheet
Part Number 856327 915 MHz SAW Filter
Matching Schematics
1 3 50
50 Single-ended
50
2,4
No impedance matching required
Marking
Marking code MFG site
PCB Footprint
5M WWY
ID dot Date code
0.31x45 CHAMFER
1.50 0.62 0.76 2.00
This footprint represents a recommendation only Dimensions shown are nominal in millimeters
Tape and Reel
2.7 8.8 O330 ID dot
4.0 0.3 2.0
O1.5
A
1.75
2.34
O102 O20.2 O13.0 Direction of travel 2.0
3.5 8.0 4.0 O1.0
1.09 Section A-A
1.83
A
Dimensions shown are nominal in millimeters Packaging quantity: 10000 units/reel
Subject to change or obsolescence without notice
Rev -
15-Dec-2003
Page 4 of 5
Preliminary Data Sheet
Maximum Ratings
Parameter
Operating Temperature Range Storage Temperature Range
Part Number 856327 915 MHz SAW Filter
Symbol
T Tstg
Minimum
-30 -40
Maximum
+85 +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
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
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
15-Dec-2003
Page 5 of 5

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