China Electronics Technology Group Corporation
No.26 Research Institute
140MHz SAW Filter
9MHz Bandwidth
SIPAT Co., Ltd.
www.sipatsaw.com
Part Number: LB140DS47
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
6
Maximum
Center Frequency
Insertion Loss
139.75
140.25
-
-
8.5
Return Loss
dB
-10
8.03
9.04
12.43
0.5
-
1 dB Bandwidth
MHz
MHz
MHz
dB
7.5
8.5
-
-
-
3 dB Bandwidth
40 dB Bandwidth
13
1
Passband Variation(f0±2.6MHz)
Group Delay Variation(f0±2.6MHz)
Absolute Delay
-
nsec
usec
dB
-
65
150
-
-
0.85
45
Ultimate Rejection
Material Temperature coefficient
Substrate Material
Ambient Temperature
Operating Temperature Range
Storage Temperature Range
DC Voltage
40
-
KHz/°C
-
-13.16
YZ LN
25
°C
°C
-40
-45
-
+85
°C
-
+105
V
0
Input Power
dBm
-
-
-
10
ESD Class
1A
Package Size
SMD13.3*6.5
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.
LB140DS47
2009-05-15
2.0
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