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| Data Sheet Features * * * * * * * * * For DCS applications Usable bandwidth 75 MHz Low loss High attenuation Single-ended input Balanced output Superior amplitude and phase balance Ceramic Surface Mount Package (SMP) Small size Part Number 856079 1842.5 MHz SAW Filter * Package Surface Mount 2.50 x 2.00 x 0.76 mm Pin Configuration Bottom View 2 3 1 0.76 NOM. 0.84 MAX. 2.50 0.94 5 4 2.00 0.50 1.38 Pin No. 1 2,5 3,4 Description Input Case ground Balanced output 0.50 0.94 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 D 05-Sep-2002 Page 1 of 7 Data Sheet Operating Temperature: (2) +25 oC Part Number 856079 1842.5 MHz SAW Filter Electrical Specifications (1) Parameter (3) Center Frequency Maximum Insertion Loss 1805 - 1880 MHz Absolute Attenuation DC - 1000 MHz 1000 - 1710 MHz 1710 - 1765 MHz 1765 - 1785 MHz 1920 - 1980 MHz 1980 - 2090 MHz 2090 - 3000 MHz 3000 - 6000 MHz (4) Passband Ripple 1805 - 1880 MHz Input/Output Return Loss 1805 - 1880 MHz Output Amplitude Balance (|S31/S21|) 1805 - 1880 MHz Output Phase Balance (S31)- (S21) 1805 - 1880 MHz Source Impedance (5) Optimal Load Impedance (balanced) Notes: 1. 2. 3. 4. 5. Minimum 40 30 20 12 15 20 30 40 8 165 - Typical 1842.5 2.5 45 34 25 17 17 27 40 50 0.7 10 1.4 180 50 200 || 18nH Maximum 2.9 1.0 2 190 - Unit MHz dB dB dB dB dB dB dB dB dB dB dB dB degree All specifications are based on the test circuit shown below This specification is valid for room temperature only. The specification over the full temperature range(s) is available on the next page(s) Electrical margin has been built into the design to account for the variations due to manufacturing tolerances This is the maximum peak to adjacent valley amplitude change in passband This is the optimum impedance for maximum power transfer Test Circuit: Actual matching values may vary due to PCB layout and parasitics 1 3 18nH 50 2,5 4 200 50 Single-ended Input 200 Balanced Output Subject to change or obsolescence without notice Rev D 05-Sep-2002 Page 2 of 7 Data Sheet Operating Temperature Range: (2) -30 to +80 oC Part Number 856079 1842.5 MHz SAW Filter Electrical Specifications (1) Parameter (3) Center Frequency Maximum Insertion Loss 1805 - 1880 MHz 1805 - 1880 MHz (+15 to +35 oC) Absolute Attenuation DC - 1000 MHz 1000 - 1710 MHz 1710 - 1765 MHz 1765 - 1785 MHz 1920 - 1980 MHz 1980 - 2090 MHz 2090 - 3000 MHz 3000 - 6000 MHz (4) Passband Ripple 1805 - 1880 MHz Input/Output Return Loss 1805 - 1880 MHz Output Amplitude Balance (|S31/S21|) 1805 - 1880 MHz Output Phase Balance (S31)- (S21) 1805 - 1880 MHz Source Impedance (5) Optimal Load Impedance (balanced) Notes: 1. 2. 3. 4. 5. Minimum 40 30 20 8 15 20 30 40 8 165 - Typical 1842.5 2.8 2.5 45 34 25 10 17 27 40 50 0.7 10 1.4 180 50 200 || 18nH Maximum 3.5 1.0 2 190 - Unit MHz dB dB dB dB dB dB dB dB dB dB dB dB dB degree 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 maximum peak to adjacent valley amplitude change in passband This is the optimum impedance for maximum power transfer Test Circuit: Actual matching values may vary due to PCB layout and parasitics 1 3 18nH 50 2,5 4 200 50 Single-ended Input 200 Balanced Output Subject to change or obsolescence without notice Rev D 05-Sep-2002 Page 3 of 7 Data Sheet Operating Temperature Range: (2) -30 to +80 oC Part Number 856079 1842.5 MHz SAW Filter Electrical Specifications (1) Parameter (3) Center Frequency Maximum Insertion Loss 1805 - 1880 MHz 1805 - 1880 MHz (+15 to +35 oC) Absolute Attenuation DC - 1000 MHz 1000 - 1710 MHz 1710 - 1765 MHz 1765 - 1785 MHz 1920 - 1980 MHz 1980 - 2090 MHz 2090 - 3000 MHz 3000 - 6000 MHz (4) Passband Ripple 1805 - 1880 MHz Input/Output Return Loss 1805 - 1880 MHz Output Amplitude Balance (|S31/S21|) 1805 - 1880 MHz Output Phase Balance (S31)- (S21) 1805 - 1880 MHz Source Impedance (4) Optimal Load Impedance (balanced) Notes: 1. 2. 3. 4. 5. Minimum 40 30 20 8 15 20 30 40 8 165 - Typical 1842.5 3.05 2.75 45 34 25 10 17 27 40 50 0.7 10 1.4 180 50 200 || 18nH Maximum 3.75 1.0 2 190 - Unit MHz dB dB dB dB dB dB dB dB dB dB dB dB dB degree 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 maximum peak to adjacent valley amplitude change in passband This is the optimum impedance for maximum power transfer Test Circuit: Actual matching values may vary due to PCB layout and parasitics 1.5pF 1 3 6.8nH 50 2,5 4 1.5pF 100 50 Single-ended Input 100 Balanced Output Subject to change or obsolescence without notice Rev D 05-Sep-2002 Page 4 of 7 Data Sheet Part Number 856079 1842.5 MHz SAW Filter Typical Performance (at +25oC) Subject to change or obsolescence without notice Rev D 05-Sep-2002 Page 5 of 7 Data Sheet Actual matching values may vary due to PCB layout and parasitics 1 3 Part Number 856079 1842.5 MHz SAW Filter Matching Schematics 50 Single-ended Input 18nH 50 2,5 4 200 200 Balanced Output 1.5pF 1 3 6.8nH 50 2,5 4 1.5pF 100 50 Single-ended Input 100 Balanced Output Marking Sawtek logo Marking code PCB Footprint 2.59 H JJJYM ID dot Date code 2.08 .69 .71 SQ .23 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 8.8 2.7 O330 ID dot Sawtek logo 4.0 0.254 2.0 O1.5 A 1.75 2.75 O102 Direction of travel O20.2 O13.0 2.0 3.5 8.0 4.0 O1.0 1.1 Section A-A 2.23 A Dimensions shown are nominal in millimeters Packaging quantity: 10000 units/reel Subject to change or obsolescence without notice Rev D 05-Sep-2002 Page 6 of 7 Data Sheet Parameter Operating Temperature Range Storage Temperature Range Part Number 856079 1842.5 MHz SAW Filter Maximum Ratings Symbol T Tstg Minimum -30 -40 Maximum +80 +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 D Or contact one of our worldwide Network of sales offices, Representatives or distributors 05-Sep-2002 Page 7 of 7 |
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