204.8MHz SAW Filter 1.2MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. S20502 Part Number:LB Number:LBS20502 www.sipatsaw.com Features � For IF SAW filter � High attenuation � Single-ended operation � Dual In-line Package � No matching required for operation at 50Ω � RoHS compliant (2002/95/EC), Pb-free Specifications Parameter Unit Minimum Typical Maximum Center Frequency MHz 204.62 204.8 204.98 Insertion Loss dB - 22.8 24 3dB Bandwidth MHz 1.2 1.26 - 1.97 2.0 40dB Bandwidth Passband Variation dB - 0.4 1.0 Absolute Delay usec - 3.52 4.0 Ultimate Rejection (f0±1.8MHz) dB 50 51 - Material Temperature coefficient KHz/°C 0.21 Substrate Material - ST42QZ Ambient Temperature °C 25 Operating Temperature Range °C -25 - +85 Storage Temperature Range °C -45 - +85 DC Voltage V Input Power dBm ESD Class - 0 - - 10 1C Package Size DIP2712 (27*12.8*4.7mm3) 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. Part Number LBS20502 ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Rev. Date 2012-03-09 Ver. 1.0 Tel: +86-23-62808818 Phone: +86-23-62920684 Fax:+86-23-62805284 +86-23-62808382 Fax: Page 1/3 www.sipatsaw.com / [email protected] www.sipatsaw.com / [email protected] 204.8MHz SAW Filter 1.2MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. S20502 Part Number:LB Number:LBS20502 www.sipatsaw.com Matching Configuration 手动测试座 L1=27nH C1=22pF Source/Load Impedance=50 ohm Notes - Component values may change depending on board layout. Package Dimension 27.00 0.50 Pad Configuration Configuration:: 12.80 0.50 SIPAT LBS20502 XXYYZZ 1 Output 5 Ground 2、3、4、6 4.30 0.50 4.50 0.50 0.45 0.05 Input Marking Configuration Configuration:: 1) SIPAT: Manufacturer Name 2) LBS20502: Part Number 3) XXYY: Date(Year/month) 4) ZZ: Identified Code 2.54 0.20 5 6 1 Package: DIP3512 7.62 0.50 4 3 2 17.70 0.50 2.54 0.20 Unit: mm SIPAT Co., Ltd. Part Number LBS20502 ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Rev. Date 2012-03-09 Ver. 1.0 Tel: +86-23-62808818 Phone: +86-23-62920684 Fax:+86-23-62805284 +86-23-62808382 Fax: Page 2/3 www.sipatsaw.com / [email protected] www.sipatsaw.com / [email protected] 204.8MHz SAW Filter 1.2MHz Bandwidth China Electronics Technology Group Corporation No.26 Research Institute SIPAT Co., Ltd. S20502 Part Number:LB Number:LBS20502 www.sipatsaw.com Typical Performance Frequency Response Passband Response Type Performance Type Performance -20.2912 -22.7912 -20.7912 -32.7912 -21.2912 -42.7912 -21.7912 Amplitude ripple(dB) -12.7912 Magnitude(dB) -52.7912 -62.7912 -72.7912 -82.7912 -22.2912 -22.7912 -23.2912 -23.7912 -92.7912 -24.2912 -102.7912 -24.7912 -112.7912 200 201 202 203 204 205 206 Frequency(MHz) Horizontal: 1MHz/Div 207 208 -25.2912 209 Vertical: 10dB/Div 203.5 204 204.5 205 Frequency(MHz) Horizontal: 0.5MHz/Div Group Delay Variation 205.5 206 Vertical: 0.5dB/Div Phase Linearity Type Performance Type Performance 12 4600 10 4400 8 6 4 4000 3800 X: 205.6 Y: 3579 X: 204.8 Y: 3545 3600 Degree(deg) Group Delay Time(ns) 4200 X: 204.2 Y: 3355 3400 2 0 X: 204.8 Y: -0.5594 -2 X: 205.4 Y: -0.7294 -4 3200 -6 3000 -8 X: 204.2 Y: -9.839 2800 -10 204.6 204.8 205 205.2 Frequency(MHz) Horizontal: 0.2MHz/Div 205.4 205.6 205.8 204 Vertical: 200ns/Div 204.2 204.4 204.6 204.8 205 Frequency(MHz) Horizontal: 0.2MHz/Div Smith Chart S11 -j5.0 -j0.5 0.5 0.0 ∞ +j5.0 0.2 5.0 2.0 1.0 -j0.2 +j2.0 +j0.2 +j5.0 0.5 Vertical: 2deg/Div +j0.5 +j2.0 +j0.2 0.2 205.6 +j1.0 +j0.5 -j0.2 -j2.0 ∞ -j5.0 -j0.5 -j2.0 -j1.0 -j1.0 SIPAT Co., Ltd. Part Number LBS20502 ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Rev. Date 2012-03-09 Ver. 1.0 Tel: +86-23-62808818 Phone: +86-23-62920684 205.4 Smith Chart S22 +j1.0 0.0 205.2 5.0 204.4 2.0 204.2 1.0 204 Fax:+86-23-62805284 +86-23-62808382 Fax: Page 3/3 www.sipatsaw.com / [email protected] www.sipatsaw.com / [email protected]