Part Number 856079 1842.5 Filter Package Surface Mount 2.50
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applications Usable bandwidth loss High attenuation Single-ended input Balanced output Superior amplitude phase balance Ceramic Surface Mount Package (SMP) Small size
Part Number 856079 1842.5 Filter
Package
Surface Mount 2.50 2.00 0.76
Configuration
Bottom View
0.76 NOM. 0.84 MAX. 2.50 0.94
2.00
0.50
1.38
Description Input Case ground Balanced output
0.50
0.94
Dimensions shown nominal millimeters tolerances ±0.10mm Body: Al2O3 ceramic Lid: Kovar Alloy over plated Terminations: plating 1.0µm, over plating
Subject change obsolescence without notice
05-Sep-2002
Page
Operating Temperature:
Part Number 856079 1842.5 Filter
Electrical Specifications
Parameter
Center Frequency Maximum Insertion Loss 1805 1880 Absolute Attenuation 1000 1000 1710 1710 1765 1765 1785 1920 1980 1980 2090 2090 3000 3000 6000 Passband Ripple 1805 1880 Input/Output Return Loss 1805 1880 Output Amplitude Balance (|S31/S21|) 1805 1880 Output Phase Balance (S31)- (S21) 1805 1880 Source Impedance Optimal Load Impedance (balanced) Notes:
Minimum
Typical
1842.5 18nH
Maximum
Unit
degree
specifications based test circuit shown below This specification valid room temperature only. specification over full temperature range(s) available next page(s) Electrical margin been built into design account variations manufacturing tolerances This maximum peak adjacent valley amplitude change passband This optimum impedance maximum power transfer
Test Circuit:
Actual matching values vary layout parasitics
18nH
Single-ended Input
Balanced Output
Subject change obsolescence without notice
05-Sep-2002
Page
Operating Temperature Range:
Part Number 856079 1842.5 Filter
Electrical Specifications
Parameter
Center Frequency Maximum Insertion Loss 1805 1880 1805 1880 (+15 Absolute Attenuation 1000 1000 1710 1710 1765 1765 1785 1920 1980 1980 2090 2090 3000 3000 6000 Passband Ripple 1805 1880 Input/Output Return Loss 1805 1880 Output Amplitude Balance (|S31/S21|) 1805 1880 Output Phase Balance (S31)- (S21) 1805 1880 Source Impedance Optimal Load Impedance (balanced) Notes:
Minimum
Typical
1842.5 18nH
Maximum
Unit
degree
specifications based test circuit shown below production, devices will tested room temperature guardbanded specification ensure electrical compliance over temperature Electrical margin been built into design account variations temperature drift manufacturing tolerances This maximum peak adjacent valley amplitude change passband This optimum impedance maximum power transfer
Test Circuit:
Actual matching values vary layout parasitics
18nH
Single-ended Input
Balanced Output
Subject change obsolescence without notice
05-Sep-2002
Page
Operating Temperature Range:
Part Number 856079 1842.5 Filter
Electrical Specifications
Parameter
Center Frequency Maximum Insertion Loss 1805 1880 1805 1880 (+15 Absolute Attenuation 1000 1000 1710 1710 1765 1765 1785 1920 1980 1980 2090 2090 3000 3000 6000 Passband Ripple 1805 1880 Input/Output Return Loss 1805 1880 Output Amplitude Balance (|S31/S21|) 1805 1880 Output Phase Balance (S31)- (S21) 1805 1880 Source Impedance Optimal Load Impedance (balanced) Notes:
Minimum
Typical
1842.5 3.05 2.75 18nH
Maximum
3.75
Unit
degree
specifications based test circuit shown below production, devices will tested room temperature guardbanded specification ensure electrical compliance over temperature Electrical margin been built into design account variations temperature drift manufacturing tolerances This maximum peak adjacent valley amplitude change passband This optimum impedance maximum power transfer
Test Circuit:
Actual matching values vary layout parasitics
1.5pF 6.8nH 1.5pF
Single-ended Input
Balanced Output
Subject change obsolescence without notice
05-Sep-2002
Page
Part Number 856079 1842.5 Filter
Typical Performance +25oC)
Subject change obsolescence without notice
05-Sep-2002
Page
Actual matching values vary layout parasitics
Part Number 856079 1842.5 Filter
Matching Schematics
Single-ended Input
18nH
Balanced Output
1.5pF 6.8nH 1.5pF
Single-ended Input
Balanced Output
Marking
Sawtek logo Marking code
Footprint
2.59
JJJYM
Date code
2.08
date code consists Julian day, last digit year, manufacturing site code
This footprint represents recommendation only Dimensions shown nominal millimeters
Tape Reel
Sawtek logo
0.254
1.75
2.75
Direction travel
Section
2.23
Dimensions shown nominal millimeters Packaging quantity: 10000 units/reel
Subject change obsolescence without notice
05-Sep-2002
Page
Parameter
Operating Temperature Range Storage Temperature Range
Part Number 856079 1842.5 Filter
Maximum Ratings
Symbol
Tstg
Minimum
Maximum
Unit
Warnings
Electrostatic Sensitive Device (ESD) Avoid ultrasonic exposure
Links Additional Technical Information
Layout Tips S-Parameters Qualification Flowchart Soldering Profile Other Technical Information
Sawtek's liability limited only Surface Acoustic Wave (SAW) component(s) described this data sheet. Sawtek does accept liability applications, processes, circuits assemblies which implemented using Sawtek component described this data sheet.
Contact Information
609501 Orlando, 32860-9501
Subject change obsolescence without notice
Phone: (407) 886-8860 Fax: (407) 886-7061 Email: custservice@sawtek.com Web: www.sawtek.com
contact worldwide Network sales offices, Representatives distributors
05-Sep-2002
Page
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