China Electronics Technology Group Corporation
No.26 Research Institute
267.5MHz SAW Filter
35MHz Bandwidth
Part Number:
LB267DS01
www.sipatsaw.com
SIPAT Co., Ltd.
Specifications
Parameter
Center Frequency
Insertion Loss
1 dB Bandwidth
3 dB Bandwidth
40 dB Bandwidth
Passband Variation
Ultimate Rejection(f0
±
35MHz)
Group Delay Variation
Subatrate Material
Ambient Temperature
Package Size
°C
Unit
MHz
dB
MHz
MHz
MHz
dB
Minimum
Typical
267.5
14.3
Maximum
16
35
38.4
40.08
48.85
1
70
2
dB
nsec
35
38
60
YZ
25
SMD0705A (7x5x1.6mm
3
)
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
C1
C2
L1=33nH L2=22+22nH
C1=15pF C2=15pF
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.
LB267DS01
2005-6-27
4.0
Page
1/3
Phone: +86-23-62920684
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
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