Preliminary Data Sheet Part Number 856278 374 MHz SAW Filter Features • • • • • • For WLAN applications Usable bandwidth of 17 MHz Balanced or single-ended operation Ceramic Surface Mount Package (SMP) Small size Package Pin Configuration Surface Mount 3.80 x 3.80 x 1.27 mm Bottom View 1 2 3 0.61 8 1.27 NOM. 1.45 MAX. 4 3.80 1.27 3.80 7 0.60 1.00 Pin No. 2 3 6 7 1,4,5,8 6 5 Description Input Input return Output Output return Case ground 1.50 Dimensions shown are nominal in millimeters All tolerances are ±0.15mm except overall length and width ±0.10mm Body: Al2O3 ceramic Lid: Kovar, Ni plated Terminations: Au plating 0.5 - 1.0µm, over a 2 - 6µm Ni plating Subject to change or obsolescence without notice Rev A 15-Aug-2003 Page 1 of 5 Part Number 856278 374 MHz SAW Filter Preliminary Data Sheet Electrical Specifications (1) Operating Temperature Range: (2) -10 to +80 oC Parameter (3) Minimum Typical Maximum Unit - 374 - MHz 382.5 9 363.5 384.5 10 365.5 - dB MHz MHz 45 40 30 30 35 40 40 50 45 35 35 41 45 45 - dB dB dB dB dB dB dB - 0.75 1.0 dB 30 - 40 40 200 200 100 - nsec dB Ω Ω Center Frequency, f0 Maximum Insertion Loss 367 - 381 MHz Lower 3 dB Bandedge Upper 3 dB Bandedge Stop Band Rejection (4) 274 - 331 MHz 331 - 352 MHz 352 - 357.5 MHz 390.5 - 396 MHz 396 - 404 MHz 404 - 417 MHz 417 - 474 MHz Amplitude Variation (5) 367 - 381 MHz Group Delay Variation (5) 367 - 381 MHz Triple Transit Suppression Source Impedance (6) Load Impedance (6) Notes: 1. 2. 3. 4. 5. 6. 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 All attenuation measured over the defined frequency range and referenced to minimum insertion loss Total variation over the defined range 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 18pF 22pf 2 200Ω Balanced 200Ω 27nH 15nH 3 18pF Subject to change or obsolescence without notice 6 1,4,5,8 200Ω 7 22pf Rev A 15-Aug-2003 Page 2 of 5 Preliminary Data Sheet Part Number 856278 374 MHz SAW Filter Typical Performance (at +25oC) Subject to change or obsolescence without notice Rev A 15-Aug-2003 Page 3 of 5 Part Number 856278 374 MHz SAW Filter Preliminary Data Sheet Matching Schematics Actual matching values may vary due to PCB layout and parasitics 18nH 10nH 2 50Ω Single-ended 6 6pf 50Ω 18pf 50Ω 1,3,4,5,7,8 9pF 12pf 2 750Ω Balanced 6 36nH 750Ω 24nH 3 1,4,5,8 9pF 750Ω 7 12pf Marking PCB Footprint 1.70 4.01 Marking code Sawtek logo 1.19 .81 .41 P JJJYM ID dot .46 Date code 1.19 .81 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 12.8 ID dot Ø330 0.3 2.0 Ø20.2 Ø13.0 2.0 Direction of travel Ø1.5 A 1.75 5.5 Sawtek logo Ø102 4.0 4.1 1.8 Section A-A 4.1 8.0 Ø1.5 12.0 A Dimensions shown are nominal in millimeters Packaging quantity: 4000 units/reel Subject to change or obsolescence without notice Rev A 15-Aug-2003 Page 4 of 5 Part Number 856278 374 MHz SAW Filter Preliminary Data Sheet Maximum Ratings Parameter Operating Temperature Range Storage Temperature Range Input Power Symbol Minimum Maximum Unit T Tstg Pin -10 -40 - +85 +85 +10 C C dBm o o 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 Subject to change or obsolescence without notice Or contact one of our worldwide network of sales offices, representatives or distributors Phone: +1 (407) 886-8860 Fax: +1 (407) 886-7061 Email: [email protected] Web: www.sawtek.com Rev A 15-Aug-2003 Page 5 of 5