China Electronics Technology Group Corporation
No.26 Research Institute
140MHz SAW Filter
40MHz Bandwidth
Part Number: LB140DS48
www.sipatsaw.com
SIPAT Co., Ltd.
Features
For IF SAW filter
Ceramic Surface Mount Package
Small size
RoHS compliant (2002/95/EC), Pb-free
Specifications
Typical
Parameter
Center Frequency
Insertion Loss
2 dB Bandwidth
Passband Variation(f0±20MHz)
Group Delay Variation(f0±20MHz)
Absolute Delay
Input/output return loss(f0±20MHz)
10
�½�
70MHz
Ultimate Rejection
70
�½�
115MHz
165
�½�
200MHz
200
�½�
1000MHz
Material Temperature coefficient
Substrate Material
Ambient Temperature
Operating Temperature Range
Storage Temperature Range
DC Voltage
Input Power
ESD Class
Package Size
Notes:
1.
2.
3.
4.
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;
Electrical margin has been built into the design to account for the variations due to temperature drift and
manufacturing tolerances;
This is the optimum impedance in order to achieve the performance show.
Unit
MHz
dB
MHz
dB
nsec
usec
dB
dB
dB
dB
dB
KHz/°C
-
°C
°C
°C
V
dBm
-
Minimum
-
-
40
-
-
-
-
-
-
-
-
(single-
ended)
140
11.6
44
0.8
35
0.27
4.7/5.4
48
27
9
53
Typical
(balance)
140
11.6
44
1.1
39
0.27
6.7/6.4
70
24
8
43
-11.48
128LN
25
Typical
(single-
balance)
140
11.1
44.1
1
50
0.27
3.8/5.8
68
25
8
55
Typical
(balance
-single)
140
11.6
44
0.9
35
0.27
4.6/6.8
60
26
9
50
-
13.5
-
2
100
0.5
-
-
-
-
-
Maximum
-40
-50
-
-
-
0
-
1A
+85
+125
25
SMD3.8*3.8
SIPAT Co., Ltd.
( CETC No.26 Research Institute )
#14 Nanping Huayuan Road,
Chongqing, China, 400060
Tel: +86-23-62808818
Part Number
Rev. Date
Ver.
LB140DS48
2010-06-25
3.1
Page
1/9
Fax: +86-23-62808382
www.sipatsaw.com / sawmkt@sipat.com
SIPAT [ SIPAT Co,Ltd ]
