China Electronics Technology Group Corporation No.26 Research Institute
897.5MHz SAW Filter 24MHz Bandwidth
Part Number: LBT89702
www.sipatsaw.com
SIPAT Co., Ltd.
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
Center Frequency Insertion Loss(885.5~909.5MHz) Passband Variation(885.5~909.5MHz) VSWR(885.5~909.5MHz) Ultimate Rejection(930.5~954.5MHz) Material Temperature coefficient Substrate Material Ambient Temperature Operating Temperature Range DC Voltage Input Power ESD Class Package Size Notes: 1. 2. 3. 4. 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; Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances; This is the optimum impedance in order to achieve the performance show.
Unit
MHz dB dB dB KHz/°C °C °C V dBm -
Minimum
20
Typical
897.5 1.4 0.6 1.8 28 -28.7 42LT 25
Maximum
2.5 1 2 -
-40 -
0 1A
+85 10
SMD3.0*3.0
SIPAT Co., Ltd.
( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818
Part Number Rev. Date Ver.
LBT89702 2011-03-15 1.0 Page 1/3
Fax: +86-23-62808382
www.sipatsaw.com / sales@sipat.com
China Electronics Technology Group Corporation No.26 Research Institute
897.5MHz SAW Filter 24MHz Bandwidth
Part Number: LBT89702
www.sipatsaw.com
SIPAT Co., Ltd.
Matching Configuration
Source/Load Impedance=50 ohm
INPUT 50Ω OUTPUT 50Ω
Notes - Component values may change depending on board layout.
Package Dimension
3.00±0.10 1 6 3.00±0.10
Pad Configuration: Input Output 2 5
2
H97B XXYY
5
Ground All Others
3 1.24±0.18
4
Marking Configuration:
0.89±0.08 1.50
1) •: Pad Number 1 Index 2) H97B: Part Number 3) XXYY: Date(Year/month)
6 1.60 5 4 0.76
1 2 3 0.61
Package: SMD3.0*3.0
Unit: mm
SIPAT Co., Ltd.
( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818
Part Number Rev. Date Ver.
LBT89702 2011-03-15 1.0 Page 2/3
Fax: +86-23-62808382
www.sipatsaw.com / sales@sipat.com
China Electronics Technology Group Corporation No.26 Research Institute
897.5MHz SAW Filter 24MHz Bandwidth
Part Number: LBT89702
www.sipatsaw.com
SIPAT Co., Ltd.
Typical Performance
Frequency Response
Type Performance 9.1142 -0.8858 -10.8858
-0.3858 0.6142
Passband Response
Type Performance
0.1142
-20.8858 Magnitude(dB)
Amplitude ripple(dB)
-30.8858 -40.8858 -50.8858 -60.8858
-0.8858
-1.3858
-1.8858
-2.3858
-70.8858 -80.8858 -90.8858 750 800 850 900 Frequency(MHz) 950 1000
-2.8858
-3.3858 850
860
870
880
890 900 Frequency(MHz)
910
920
930
940
Horizontal: 50MHz/Div
Vertical: 10dB/Div
Horizontal: 10MHz/Div
Vertical: 0.5dB/Div
Group Delay Variation(885.5~909.5MHz)
Type Performance 50 25
Phase Linearity(885.5~909.5MHz)
Type Performance
20 40 15 30
10
X: 885.5 Y: 17.11 X: 909.5 Y: 17.8
Group Delay Time(ns)
20
5
X: 885.5 Y: 2.159
Degree(deg)
0
10
X: 909.5 Y: -3.428
-5
0
-10
-10
-15
-20 -20 -25
-30
870
880
890
900 Frequency(MHz)
910
920
-30
880
885
890
895 900 Frequency(MHz)
905
910
915
Horizontal: 10MHz/Div
Vertical: 10ns/Div
Horizontal: 5MHz/Div
Vertical: 5deg/Div
VSWR11(885.5~909.5MHz)
Type Performance (VSWR1) 3 3
VSWR22(885.5~909.5MHz)
Type Performance (VSWR2)
2.5
2.5
2 Magnitude(dB) Magnitude(dB) 1.5
X: 885.5 Y: 1.184
2
1.5
X: 885.5 Y: 1.171
X: 909.5 Y: 1.123
X: 909.5 Y: 1.115
1
1
0.5 850
860
870
880
890
900 Frequency(MHz)
910
920
930
940
0.5 850
860
870
880
890
900 Frequency(MHz)
910
920
930
940
SIPAT Co., Ltd.
( CETC No.26 Research Institute ) #14 Nanping Huayuan Road, Chongqing, China, 400060 Tel: +86-23-62808818
Part Number Rev. Date Ver.
LBT89702 2011-03-15 1.0 Page 3/3
Fax: +86-23-62808382
www.sipatsaw.com / sales@sipat.com
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