China Electronics Technology Group Corporation No.26 Research Institute
204MHz SAW Filter 1MHz Bandwidth
Part Number:LBS20404
SIPAT Co., Ltd.
www.sipatsaw.com
Specifications
Parameter Center Frequency
Insertion Loss 1 dB Bandwidth 3 dB Bandwidth 20 dB Bandwidth 40 dB Bandwidth 50 dB Bandwidth Passband Variation Absolute Delay Ultimate Rejection(f0±3MHz) Material Temperature coefficient Ambient Temperature Package Size
Unit
MHz dB MHz MHz MHz MHz MHz dB usec
Minimum
203.9 1 50
Typical
204 11 1.03 1.6 2.89 3.34 3.72 0.2 1.45 53 0.204 25 SMD13.3*6.5
Maximum
204.1 15 2.95 4.4 0.3 -
dB
KHz/°C °C
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
L1
L2
L1=56nH
L2=47nH
C1=56pF C2=39pF
C1
C2
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.
LBS20404 2006-1-24 1.0 Page 1/3
Phone: +86-23-62920684
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
China Electronics Technology Group Corporation No.26 Research Institute
204MHz SAW Filter 1MHz Bandwidth
Part Number:LBS20404
www.sipatsaw.com
SIPAT Co., Ltd.
Package Dimension
5
4
3
2
1
6
7
8
9
10
6
7
8
9
10
5
4
3
2
1
Input:10 Output:5
SIPAT Co., Ltd.
( CETC No. 26 Research Institute ) Nanping Huayuan Road No. 14 Chongqing, China, 400060
Part Number Rev. Date Rev.
LBS20404 2006-1-24 1.0 Page 2/3
Phone: +86-23-62920684
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
China Electronics Technology Group Corporation No.26 Research Institute
204MHz SAW Filter 1MHz Bandwidth
Part Number:LBS20404
www.sipatsaw.com
SIPAT Co., Ltd.
Typical Performance
Frequency Respond
-6
-10.8987
Passband Respond
-7
-20.8987
-8 -9 -10 -11 -12
-30.8987
-40.8987
-50.8987
-60.8987
-13
-70.8987
-14
-80.8987
-15
-90.8987
196
198
200
202
204
206
208
210
212
203
203.2
203.4
203.6
203.8
204
204.2
204.4
204.6
204.8
205
Group Delay Variation(f0±0.5MHz)
Phase Linearity(f0±0.5MHz)
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.
LBS20404 2006-1-24 1.0 Page 3/3
Phone: +86-23-62920684
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
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