China Electronics Technology Group Corporation No.26 Research Institute
121.8MHz SAW Filter 2MHz Bandwidth
Part Number: LBS12204
www.sipatsaw.com
SIPAT Co., Ltd.
Specifications
Parameter Center Frequency
Insertion Loss 1 dB Bandwidth 3 dB Bandwidth 40 dB Bandwidth 50 dB Bandwidth Passband Variation Absolute Delay f0±1.45MHz f0±1.65MHz Ultimate Rejection f0±2.05MHz f0±6.05MHz f0±15MHz Material Temperature coefficient Ambient Temperature Package Size
Unit
MHz dB MHz MHz MHz MHz dB usec
Minimum
121.7 2 35 45 50 55 55
Typical
121.8 23.8 1.96 2.13 2.84 2.92 0.3 3.93 51 55 58 60 60 0.122 25
Maximum
121.9 26 1.2 4 -
dB dB dB dB dB
KHz/°C °C
DIP3512 (35.0x12.8x4.7mm3)
Notes:
1. All specifications are based on the test circuit shown 2. In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over 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
Matching Configuration
INPUT 50Ω C1 L1 L2 OUTPUT 50Ω
L1=82nH
L2=68nH
C1=39pF Source/Load Impedance=50 ohm
Notes - Component values may change depending on board layout.
SIPAT Co., Ltd.
( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060
Part Number Rev. Date Rev.
LBS12204 2006-8-13 1.0 Page 1/3
Phone: +86-23-62808818
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
China Electronics Technology Group Corporation No.26 Research Institute
121.8MHz SAW Filter 2MHz Bandwidth
Part Number: LBS12204
www.sipatsaw.com
SIPAT Co., Ltd.
Package Dimension
35.00±0.5 12.80±0.5 4.7 4.5
0.45±0.05
2.54±0.2
7.62±0.2
3 6
2 1
4 5
25.40±0.2
2.54±0.2
Input Output Ground
1 5 2,3,4,6
Package: DIP3512
Unit: mm
SIPAT Co., Ltd.
( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060
Part Number Rev. Date Rev.
LBS12204 2006-8-13 1.0 Page 2/3
Phone: +86-23-62808818
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
China Electronics Technology Group Corporation No.26 Research Institute
121.8MHz SAW Filter 2MHz Bandwidth
Part Number: LBS12204
www.sipatsaw.com
SIPAT Co., Ltd.
Typical Performance
Frequency Respond
-13.773
Passband Respond
-21.5
-23.773
-22
-33.773
-22.5
-43.773
-23
-53.773
-23.5
-63.773
-24
-73.773
-24.5
-25
-83.773
-25.5
-93.773
-26
-103.773 115.8 117 118.2 119.4 120.6 121.8 123 124.2 125.4 126.6 127.8
120.5
121
121.5
122
122.5
123
Group Delay Variation(f0±0.8MHz)
Phase Linearity(f0±0.8MHz)
Smith Chart S11
Smith Chart S22
SIPAT Co., Ltd.
( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060
Part Number Rev. Date Rev.
LBS12204 2006-8-13 1.0 Page 3/3
Phone: +86-23-62808818
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
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