China Electronics Technology Group Corporation
No.26 Research Institute
140MHz SAW Filter
3MHz Bandwidth
SIPAT Co., Ltd.
www.sipatsaw.com
Part Number: LB140DS35
Features
For IF SAW filter
Single-ended operation
Ceramic Surface Mount Package
Small size
RoHS compliant (2002/95/EC), Pb-free
Specifications
Parameter
Unit
MHz
dB
Minimum
Typical
140
11
Maximum
Center Frequency
Insertion Loss
139.85
140.15
-
1.9
2.8
-
15
1 dB Bandwidth
MHz
MHz
MHz
dB
2.15
2.97
5.58
0.2
37
-
-
3 dB Bandwidth
30 dB Bandwidth
6
Passband Variation
Group Delay Variation(f0±1MHz)
Absolute Delay
-
0.8
100
-
nsec
usec
dB
-
-
1.05
51
Ultimate Rejection
Material Temperature coefficient
Substrate Material
Ambient Temperature
Operating Temperature Range
Storage Temperature Range
DC Voltage
40
-
KHz/°C
-
-2.52
112LT
25
°C
°C
-40
-45
-
+85
°C
-
+105
V
0
Input Power
dBm
-
-
-
10
ESD Class
1A
Package Size
SMD13.3*6.5A
Notes:
1. All specifications are based on the test circuit shown;
2. In production, all specifications are measured by Agilent Network analyzer and full 2 port calibration at room
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.
Part Number
Rev. Date
Ver.
LB140DS35
2008-09-18
1.0
SIPAT Co., Ltd.
( CETC No.26 Research Institute )
#14 Nanping Huayuan Road,
Chongqing, China, 400060
Page 1/3
Tel: +86-23-62808818
Fax: +86-23-62808382
www.sipatsaw.com / sawmkt@sipat.com
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