China Electronics Technology Group Corporation
No.26 Research Institute
124MHz SAW Filter
4MHz Bandwidth
Part Number:LBS12401
www.sipatsaw.com
SIPAT Co., Ltd.
Specifications
Parameter
Center Frequency
Insertion Loss
3 dB Bandwidth
40 dB Bandwidth
50 dB Bandwidth
Passband Variation
Absolute Delay
Group Delay Variation(f0±1.9MHz)
Ultimate Rejection
Material Temperature coefficient
Ambient Temperature
Package Size
Unit
MHz
dB
MHz
MHz
MHz
dB
usec
Minimum
123.85
-
3.8
-
-
-
-
-
50
Typical
124
26.7
4.02
4.85
4.92
0.6
3.26
80
51
0.124
25
Maximum
124.15
28
-
5
5.2
0.9
4
300
-
nsec
dB
KHz/°C
°C
DIP2712 (27.0x12.8x4.7mm3)
Notes:
1. All specifications are based on the test circuit shown
2. In production, devices will be tested at room temperature to a guardbanded specification to ensure
electrical compliance over 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
Matching Configuration
L1
L2
L1=150nH L2=(18+100)nH
C1=39pF c2=56pF
Source/Load Impedance=50 ohm
C1
C2
Notes - Component values may change depending
on board layout.
SIPAT Co., Ltd.
( CETC No. 26 Research Institute )
Nanping Huayuan Road No. 14
Chongqing, China, 400060
Part Number
Rev. Date
Rev.
LBS12401
2005-1-9
1.0
Page
1/3
Phone: +86-23-62920684
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
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