140MHz SAW Filter 7MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LB140DS38 www.sipatsaw.com Features For IF SAW filter Single-ended operation Ceramic Surface Mount Package Small size RoHS compliant (2002/95/EC), Pb-free Specifications Parameter Unit Minimum Typical Maximum Center Frequency MHz - 140 - Insertion Loss dB - 12.6 18.5 137.25~142.75MHz dB - 0.3 1.8 136.5~143.5MHz dB - 0.3 2 137.25~142.75MHz deg - 2 6 136.5~143.5MHz deg - 3 8 Absolute Delay(137.25~142.75MHz) usec - 1.05 - Input/Output return loss(136.5~143.5MHz) dB 8.5 12/10.7 - 10~132MHz dB 40 46 - 132~133MHz dB 35 49 - 147~150MHz dB 35 38 - 150~200MHz dB 40 52 - Passband Variation Phase Linearity Ultimate Rejection Material Temperature coefficient KHz/°C -2.52 Substrate Material - 112LT 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 SMD9.1*4.8 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 LB140DS38 Rev. Date 2008-11-11 Ver. 1.0 Fax: +86-23-62808382 Page www.sipatsaw.com / [email protected] 1/3 140MHz SAW Filter 7MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LB140DS38 www.sipatsaw.com Matching Configuration L1 INPUT 50Ω L2 L1=(27+15)nH OUTPUT 50Ω C1=C2=56pF Source/Load Impedance=50 ohm C2 C1 L2=47nH Notes - Component values may change depending on board layout. Package Dimension 9.1 Pad Configuration: 9 7 6 SIPAT LB140DS38 XXYYZZ 10 Input: 9 Output: 4 Ground: All Others 4 3 2 1.2 1 5 4.8 8 1) •: Pad Number 1 Index 0.65±0.05 1.5 Marking Configuration: 2.54 2) SIPAT: Manufacturer Name 3) LB140DS38: Part Number 4) XXYY: Date(Year/month) 0.8 Package: SMD9148 1 Unit: mm SIPAT Co., Ltd. ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818 3.2 4.8 2.54 5) ZZ: Identified Code Part Number LB140DS38 Rev. Date 2008-11-11 Ver. 1.0 Fax: +86-23-62808382 Page www.sipatsaw.com / [email protected] 2/3 140MHz SAW Filter 7MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. Part Number: LB140DS38 www.sipatsaw.com Typical Performance Frequency Respond Passband Respond Type Performance Type Performance -2.597 -11.097 -12.597 -11.597 -22.597 -12.097 -12.597 Amplitude ripple(dB) -42.597 -52.597 -62.597 -13.097 -13.597 -72.597 -14.097 -82.597 -14.597 -92.597 -102.597 115 120 125 130 135 140 145 Frequency(MHz) Horizontal: 5MHz/Div 150 155 160 -15.097 132 165 Vertical: 10dB/Div 134 136 138 140 Frequency(MHz) Horizontal: 2MHz/Div Group Delay Variation(f0±3.5MHz) 142 144 146 148 Vertical: 0.5dB/Div Phase Linearity(f0±3.5MHz) Type Performance Type Performance 1300 20 1250 15 1200 10 1150 X: 136.5 Y: 1064 5 X: 140 Y: 1043 1050 X: 143.5 Y: 1035 Degree(deg) 1100 Group Delay Time(ns) 1000 950 X: 143.5 Y: 2.146 X: 136.5 Y: -0.2113 X: 140 Y: -0.4324 0 -5 900 -10 850 -15 800 750 140 Frequency(MHz) 142 Horizontal: 2MHz/Div 144 -20 134 146 Vertical: 50ns/Div 136 138 Horizontal: 2MHz/Div Smith Chart S11 +j2.0 +j5.0 0.0 0.5 ∞ -j5.0 -j0.2 +j2.0 +j0.2 0.2 5.0 2.0 1.0 0.5 146 Vertical: 5deg/Div +j0.5 +j5.0 +j0.2 ∞ -j5.0 -j0.2 -j2.0 -j0.5 -j2.0 -j1.0 -j1.0 SIPAT Co., Ltd. ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818 144 +j1.0 +j0.5 -j0.5 142 Smith Chart S22 +j1.0 0.0 140 Frequency(MHz) 5.0 138 2.0 136 1.0 134 0.2 Magnitude(dB) -32.597 Part Number LB140DS38 Rev. Date 2008-11-11 Ver. 1.0 Fax: +86-23-62808382 Page www.sipatsaw.com / [email protected] 3/3