China Electronics Technology Group Corporation
No.26 Research Institute
204MHz SAW Filter
2MHz Bandwidth
SIPAT Co., Ltd.
www.sipatsaw.com
Part Number: LBS20402
Specifications
Parameter
Unit
MHz
dB
Minimum
Typical
Maximum
203.9
204
13.5
1.13
1.9
204.1
Center Frequency
Insertion Loss
-
1
1.8
-
15
-
MHz
MHz
MHz
MHz
MHz
dB
1 dB Bandwidth
3 dB Bandwidth
30 dB Bandwidth
40 dB Bandwidth
-
4.9
5.1
5.6
15
1
-
5.34
5.52
0.4
-
45 dB Bandwidth
Passband Variation
-
Absolute Delay
Group Delay Variation
Ultimate Rejection
usec
nsec
dB
-
0.88
40
-
-
200
-
45
49
Material Temperature coefficient
Ambient Temperature
Package Size
KHz/°C
°C
0.204
25
0705A
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=(47+27)nH L2=(18+68)nH
C1=C2=56pF
C1
C2
Source/Load Impedance=50 ohm
Notes - Component values may change depending
on board layout.
Part Number
LBS20402
2005-11-14
1.0
SIPAT Co., Ltd.
( CETC No. 26 Research Institute )
Nanping Huayuan Road No. 14
Chongqing, China, 400060
Rev. Date
Rev.
Page 1/3
Phone: +86-23-62920684
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