874.55MHz SAW Filter 9MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBT87502 www.sipatsaw.com Features For RF SAW filter Single-ended operation Ceramic Surface Mount Package Small size No matching required for operation at 50Ω RoHS compliant (2002/95/EC), Pb-free Specifications Parameter Unit Minimum Typical Maximum Center Frequency MHz - 874.55 - Insertion Loss dB - 1.7 3.5 1.5 dB Bandwidth MHz 9.2 15.12 - Passband Variation(870～879.1MHz) dB - 0.4 1.5 Absolute Delay usec - 0.06 - Input/Output VSWR(870～879.1MHz) - - 1.27/1.22 2.5 0～850MHz dB 35 44 - 850～859MHz dB 10 40 - 888～893MHz dB 10 12 - 893～902MHz dB 30 32 - 902～2000MHz dB 34 39 - Ultimate Rejection Material Temperature coefficient KHz/°C -27.99 Substrate Material - 42LT Ambient Temperature °C 25 Operating Temperature Range °C -40 - +85 Storage Temperature Range °C -45 - +105 DC Voltage V Input Power dBm ESD Class - 0 - - 10 1A SMD3.8*3.8 Package Size Notes: 1. All specifications are based on the test circuit shown; 2. In production, all specifications are measured by Agilent Network analyzer and full 2 port calibration at room temperature; 3. Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances; 4. This is the optimum impedance in order to achieve the performance show. SIPAT Co., Ltd. ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818 Part Number LBT87502 Rev. Date 2008-07-29 Ver. 1.0 Fax: +86-23-62808382 Page www.sipatsaw.com / [email protected] 1/3 874.55MHz SAW Filter 9MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBT87502 www.sipatsaw.com Matching Configuration Source/Load Impedance=50 ohm OUTPUT 50Ω INPUT 50Ω Notes - Component values may change depending on board layout. Package Dimension 3.80 0.2 Pad Configuration: 1 6 Input: Output: 5 5 3.80 0.2 2 SIPAT 87502 XXYYZZ 2 Ground: All Others 4 1.5MAX 3 Marking Configuration: 1) •: Pad Number 1 Index 2) SIPAT: Manufacturer Name 1.90 3) 87502: Part Number 6 1 4) XXYY: Date(Year/month) 5) ZZ: Identified Code 2 5 3 4 0.60 1.80 Package: SMD3.8*3.8 Unit: mm SIPAT Co., Ltd. ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818 Part Number LBT87502 Rev. Date 2008-07-29 Ver. 1.0 Fax: +86-23-62808382 Page www.sipatsaw.com / [email protected] 2/3 874.55MHz SAW Filter 9MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LBT87502 www.sipatsaw.com Typical Performance Frequency Respond Passband Respond Type Performance Type Performance 8.2745 -0.2255 -1.7255 -0.7255 -11.7255 -1.2255 -1.7255 Amplitude ripple(dB) -31.7255 -41.7255 -51.7255 -2.2255 -2.7255 -61.7255 -3.2255 -71.7255 -3.7255 -81.7255 -91.7255 780 800 820 840 860 880 900 Frequency(MHz) Horizontal: 20MHz/Div 920 940 -4.2255 960 Vertical: 10dB/Div 860 865 870 875 Frequency(MHz) 880 Horizontal: 5MHz/Div Group Delay Variation(f0±4.5MHz) 885 890 895 Vertical: 0.5dB/Div Phase Linearity(f0±4.5MHz) Type Performance Type Performance 200 40 30 150 20 100 10 X: 879 Y: 2.91 X: 870 Y: 2.482 X: 870 Y: 72.74 X: 879 Y: 55.09 X: 874.5 Y: 53.43 Degree(deg) Group Delay Time(ns) 50 0 X: 874.5 Y: -2.525 0 -10 -20 -30 -50 -40 870 872 874 876 Frequency(MHz) Horizontal: 2MHz/Div 878 880 882 -50 884 Vertical: 50ns/Div 866 868 870 872 Horizontal: 2MHz/Div Smith Chart S11 +j2.0 884 ∞ -j5.0 -j0.2 -j2.0 -j0.5 +j5.0 0.5 0.0 ∞ -j5.0 -j0.2 +j2.0 +j0.2 0.2 5.0 2.0 1.0 882 Vertical: 10deg/Div +j0.5 +j5.0 +j0.2 0.5 880 +j1.0 +j0.5 -j2.0 -j0.5 -j1.0 -j1.0 SIPAT Co., Ltd. ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818 878 Smith Chart S22 +j1.0 0.0 874 876 Frequency(MHz) 5.0 868 2.0 866 1.0 -100 0.2 Magnitude(dB) -21.7255 Part Number LBT87502 Rev. Date 2008-07-29 Ver. 1.0 Fax: +86-23-62808382 Page www.sipatsaw.com / [email protected] 3/3