LBT12904

China Electronics Technology Group Corporation No.26 Research Institute 128.8MHz SAW Filter 8MHz Bandwidth Part Number: LBT12904 www.sipatsaw.com SIPAT Co., Ltd. Features For IF SAW filter High attenuation Single-ended operation Dual In-line Package RoHS compliant (2002/95/EC), Pb-free Specifications Parameter Center Frequency Insertion Loss 1.5 dB Bandwidth 3 dB Bandwidth 30 dB Bandwidth 40 dB Bandwidth 45 dB Bandwidth 50 dB Bandwidth Passband Variation Absolute Delay Ultimate Rejection(f0±9MHz) Material Temperature coefficient Substrate Material Ambient Temperature Operating Temperature Range DC Voltage Input Power ESD Class Package Size Notes: 1. 2. All specifications are based on the test circuit shown; 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. Unit MHz dB MHz MHz MHz MHz MHz MHz dB usec dB KHz/°C °C °C V dBm - Minimum 128.65 7.75 7.8 55 Typical 128.8 26.5 7.81 7.95 8.57 8.65 8.7 8.77 0.6 4.1 56 -2.3 112LT 25 Maximum 128.95 28 8.65 1.5 - -25 0 +85 - 1A 10 DIP3512 (35.0x12.8x4.7mm3) SIPAT Co., Ltd. ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818 Part Number Rev. Date Ver. LBT12904 2011-04-21 1.0 Page 1/3 Fax: +86-23-62808382 www.sipatsaw.com / sales@sipat.com China Electronics Technology Group Corporation No.26 Research Institute 128.8MHz SAW Filter 8MHz Bandwidth Part Number: LBT12904 www.sipatsaw.com SIPAT Co., Ltd. Matching Configuration INPUT 50 C1 L1 1 5 OUTPUT 50 L2 L1=L2=33nH C1=47pF Source/Load Impedance=50 ohm Notes - Component values may change depending on board layout. Package Dimension 35.00 0.50 Pad Configuration: 12.80 0.50 SIPAT LBT12904 XXYYZZ Input Output 1 5 Ground 2,3,4,6 4.70 0.50 4.50 0.50 Marking Configuration: 1) SIPAT: Manufacturer Name 2) LBT12904: Part Number 3) XXYY: Date(Year/month) 4) ZZ: Identified Code 0.45 0.05 2.54 0.20 7.62 0.50 3 6 Package: DIP3512 SIPAT Co., Ltd. ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818 2 1 4 5 25.40 0.50 2.54 0.20 Unit: mm Part Number Rev. Date Ver. LBT12904 2011-04-21 1.0 Page 2/3 Fax: +86-23-62808382 www.sipatsaw.com / sales@sipat.com China Electronics Technology Group Corporation No.26 Research Institute 128.8MHz SAW Filter 8MHz Bandwidth Part Number: LBT12904 www.sipatsaw.com SIPAT Co., Ltd. Typical Performance Frequency Response Type Performance -16.4837 -26.4837 -36.4837 -25.9837 -24.9837 Passband Response Type Performance -25.4837 -46.4837 Magnitude(dB) Amplitude ripple(dB) -56.4837 -66.4837 -76.4837 -86.4837 -26.4837 -26.9837 -27.4837 -27.9837 -96.4837 -106.4837 -116.4837 -28.4837 105 110 115 120 125 130 135 Frequency(MHz) 140 145 150 122 124 126 128 130 Frequency(MHz) 132 134 136 Horizontal: 5MHz/Div Vertical: 10dB/Div Horizontal: 2MHz/Div Vertical: 0.5dB/Div Group Delay Variation(f0±3.9MHz) Type Performance 4600 25 Phase Linearity(f0±3.9MHz) Type Performance 4500 20 4400 15 10 4300 5 Group Delay Time(ns) 4200 X: 128.8 Y: 4153 X: 128.8 Y: -0.7842 X: 124.9 Y: -4.083 X: 132.7 Y: 4.927 Degree(deg) 134 4100 X: 124.9 Y: 4059 X: 132.7 Y: 4072 0 -5 4000 -10 3900 -15 3800 -20 3700 -25 3600 122 124 126 128 130 Frequency(MHz) 132 -30 122 124 126 128 130 Frequency(MHz) 132 134 Horizontal: 2MHz/Div Vertical: 100ns/Div Horizontal: 2MHz/Div Vertical: 5deg/Div Smith Chart S11 +j1.0 +j0.5 +j2.0 Smith Chart S22 +j1.0 +j0.5 +j2.0 +j0.2 +j5.0 +j0.2 +j5.0 0.2 0.5 1.0 2.0 5.0 0.2 0.5 1.0 2.0 0.0 ∞ 5.0 0.0 ∞ -j0.2 -j5.0 -j0.2 -j5.0 -j0.5 -j1.0 -j2.0 -j0.5 -j1.0 -j2.0 SIPAT Co., Ltd. ( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818 Part Number Rev. Date Ver. LBT12904 2011-04-21 1.0 Page 3/3 Fax: +86-23-62808382 www.sipatsaw.com / sales@sipat.com