China Electronics Technology Group Corporation
No.26 Research Institute
70MHz SAW Filter
1MHz Bandwidth
Part Number:LBS70A40
SIPAT Co., Ltd.
www.sipatsaw.com
Specifications
Parameter
Center Frequency
Insertion Loss
1 dB Bandwidth
3 dB Bandwidth
40 dB Bandwidth
50 dB Bandwidth
Passband Variation
Absolute Delay
Ultimate Rejection
Material Temperature coefficient
Ambient Temperature
Package Size
Unit
MHz
dB
MHz
MHz
MHz
MHz
dB
usec
Minimum
69.95
-
1.23
1.4
-
-
-
-
50
Typical
70
21.7
1.29
1.48
2.2
2.32
0.4
3.925
52
0.07
25
Maximum
70.05
25
-
-
2.3
-
0.7
-
-
dB
KHz/擄C
擄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
L1=L2=180nH
L3=100nH L4=82nH
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.
LBS70A40
2006-2-10
1.0
Page
1/3
Phone: +86-23-62920684
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
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