China Electronics Technology Group Corporation
No.26 Research Institute
140MHz SAW Filter
7MHz Bandwidth
Part Number: LB140DS38
www.sipatsaw.com
SIPAT Co., Ltd.
Features
For IF SAW filter
Single-ended operation
Ceramic Surface Mount Package
Small size
RoHS compliant (2002/95/EC), Pb-free
Specifications
Parameter
Center Frequency
Insertion Loss
Passband Variation
137.25~142.75MHz
136.5~143.5MHz
137.25~142.75MHz
136.5~143.5MHz
Absolute Delay(137.25~142.75MHz)
Input/Output return loss(136.5~143.5MHz)
10~132MHz
132~133MHz
Ultimate Rejection
147~150MHz
150~200MHz
Material Temperature coefficient
Substrate Material
Ambient Temperature
Operating Temperature Range
Storage Temperature Range
DC Voltage
Input Power
ESD Class
Package Size
Notes:
1.
2.
All specifications are based on the test circuit shown;
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.
Unit
MHz
dB
dB
dB
deg
deg
usec
dB
dB
dB
dB
dB
KHz/°C
-
°C
°C
°C
V
dBm
-
Minimum
-
-
-
-
-
-
-
8.5
40
35
35
40
Typical
140
12.6
0.3
0.3
2
3
1.05
12/10.7
46
49
38
52
-2.52
112LT
25
Maximum
-
18.5
1.8
2
6
8
-
-
-
-
-
-
Phase Linearity
-40
-45
-
-
0
+85
+105
-
-
1A
10
SMD9.1*4.8
SIPAT Co., Ltd.
( CETC No.26 Research Institute )
#14 Nanping Huayuan Road,
Chongqing, China, 400060
Tel: +86-23-62808818
Part Number
Rev. Date
Ver.
LB140DS38
2008-11-11
1.0
Page
1/3
Fax: +86-23-62808382
www.sipatsaw.com / sawmkt@sipat.com