China Electronics Technology Group Corporation
No.26 Research Institute
400MHz SAW Filter
0.25MHz Bandwidth
SIPAT Co., Ltd.
www.sipatsaw.com
Part Number: LBS40002
Features
For RF SAW filter
Balanced and unbalanced operation possible
Ceramic Surface Mount Package
Small size
RoHS compliant (2002/95/EC), Pb-free
Specifications
Parameter
Unit
MHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Minimum
Typical
400
2.3
1.8
0.6
60
Maximum
Center Frequency
incl.loss
excl.loss
-
-
3
2.5
3
-
-
Insertion Loss
-
Passband Variation(399.875～400.125MHz)
10～370MHz
-
55
50
22
15
15
22
35
45
50
60
50
370～390MHz
55
-
390～399MHz
27
-
399～399.3MHz
25
-
400.7～401MHz
21
-
401～408MHz
408～414MHz
414～468MHz
468～800MHz
800～1500MHz
1500～2500MHz
27
-
Ultimate Rejection
40
-
50
-
55
-
65
-
55
-
Impedance for pass band matching1)
Input: ZIN=RIN||CIN
Ω||pF
-
-
380||2.2
-
-
Output: ZOUT=ROUT||COUT
Material Temperature coefficient
Substrate Material
Ω||pF
380||2.2
KHz/°C
0.4
Qz
25
-
-
°C
°C
°C
V
Ambient Temperature
Operating Temperature Range
Storage Temperature Range
DC Voltage
-45
-45
+125
+125
-
6
Source Power
dBm
-
-
-
10
ESD Class
1C
Package Size
SMD3.0*3.0
Notes:
1. Impedance for passband matching bases on an ideal,perfect matching of the SAW filter to source and to load imp
edance(here 50 Ohm).After removal of the SAW filter the input impedance of the input and output matching networ
Part Number
Rev. Date
Ver.
LBS40002
2011-08-25
1.0
SIPAT Co., Ltd.
( CETC No.26 Research Institute )
#14 Nanping Huayuan Road,
Chongqing, China, 400060
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Tel: +86-23-62808818
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