China Electronics Technology Group Corporation
No.26 Research Institute
204MHz SAW Filter
2MHz Bandwidth
Part Number: LBS20402
www.sipatsaw.com
SIPAT Co., Ltd.
Specifications
Parameter
Center Frequency
Insertion Loss
1 dB Bandwidth
3 dB Bandwidth
30 dB Bandwidth
40 dB Bandwidth
45 dB Bandwidth
Passband Variation
Absolute Delay
Group Delay Variation
Ultimate Rejection
Material Temperature coefficient
Ambient Temperature
Package Size
Unit
MHz
dB
MHz
MHz
MHz
MHz
MHz
dB
usec
nsec
Minimum
203.9
-
1
1.8
-
-
-
-
-
-
45
Typical
204
13.5
1.13
1.9
4.9
5.34
5.52
0.4
0.88
40
49
0.204
25
0705A
Maximum
204.1
15
-
-
5.1
5.6
15
1
-
200
-
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=(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.
SIPAT Co., Ltd.
( CETC No. 26 Research Institute )
Nanping Huayuan Road No. 14
Chongqing, China, 400060
Part Number
Rev. Date
Rev.
LBS20402
2005-11-14
1.0
Page
1/3
Phone: +86-23-62920684
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
SIPAT [ SIPAT Co,Ltd ]
