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Data Sheet
Features
* * * * * * * * For Korean PCS applications, Rx Usable bandwidth 30 MHz Low loss High attenuation No impedance matching required for operation at 50 Single-ended operation Ceramic Surface Mount Package (SMP) Small size
Part Number 856083 1855 MHz SAW Filter
*
Package
Surface Mount 2.00 x 2.00 x 0.76 mm
Pin Configuration
Bottom View
1 2
0.76 NOM. 0.84 MAX. 2.00 1.30
4 3
2.00
1.30
0.25x45 CHAMFER
0.58 0.58
Pin No. 1 3 2,4
Description Input Output Case ground
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 B
05-Sep-2002
Page 1 of 5
Data Sheet
Operating Temperature Range: (2) -30 to +85 oC
Part Number 856083 1855 MHz SAW Filter
Electrical Specifications (1)
Parameter (3)
Center Frequency Insertion Loss 1840 - 1870 MHz Amplitude Ripple 1840 - 1870 MHz Absolute Attenuation 1440 - 1470 MHz 1750 - 1780 MHz 1930 - 1960 MHz 2240 - 2270 MHz Input/Output VSWR 1840 - 1870 MHz Source Impedance: (4) Load Impedance: (4) Notes:
1. 2. 3. 4.
Minimum
30 25 35 30 -
Typical
1855 1.6 0.2 38 31 45 35 1.6:1 50 50
Maximum
2.5 1 2:1 -
Unit
MHz dB dB p-p dB dB dB dB dB
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 This is the optimum impedance in order to achieve the performance shown
Test Circuit:
1 3 50
50 Single-ended
50
2,4
No impedance matching required
Subject to change or obsolescence without notice
Rev B
05-Sep-2002
Page 2 of 5
Data Sheet
Part Number 856083 1855 MHz SAW Filter
Typical Performance (at +25oC)
Subject to change or obsolescence without notice
Rev B
05-Sep-2002
Page 3 of 5
Data Sheet
Part Number 856083 1855 MHz SAW Filter
Matching Schematics
1 3 50
50 Single-ended
50
2,4
No impedance matching required
Marking
Sawtek logo Marking code
PCB Footprint
.51
G JJJYM
ID dot Date code
2.08 SQ .31x45 CHAMFER .78 SQ
The date code consists of: JJJ = Julian day, Y = last digit of year, M = manufacturing site code
This footprint represents a recommendation only Dimensions shown are nominal in millimeters
Tape and Reel
2.7 8.5 O330 ID dot Sawtek logo
4.0 0.254 2.0
O1.5
A
1.75
3.5 2.23
O102 O20.2 O13.0 Direction of travel 2.0
8.0
1.1 Section A-A
2.23
4.0 O1.0
A
Dimensions shown are nominal in millimeters Packaging quantity: 10000 units/reel
Subject to change or obsolescence without notice
Rev B
05-Sep-2002
Page 4 of 5
Data Sheet
Maximum Ratings
Parameter
Operating Temperature Range Storage Temperature Range
Part Number 856083 1855 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 B
Or contact one of our worldwide Network of sales offices, Representatives or distributors
05-Sep-2002
Page 5 of 5

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