China Electronics Technology Group Corporation
No.26 Research Institute
240MHz SAW Filter
4MHz Bandwidth
Part Number: LBS24001
www.sipatsaw.com
SIPAT Co., Ltd.
Specifications
Parameter
Center Frequency
Insertion Loss
1 dB Bandwidth
3 dB Bandwidth
40 dB Bandwidth
50 dB Bandwidth
Passband Variation(f0±1.875MHz)
Absolute Delay
Group Delay
Variation(f0±1.875MHz)
Ultimate Rejection
Material Temperature coefficient
Ambient Temperature
Package Size
Unit
MHz
dB
MHz
MHz
MHz
MHz
dB
usec
Minimum
239.85
-
4
4.2
-
-
-
-
-
Typical
240
26.6
4.11
4.35
5.29
5.44
0.9
2.7
30
Maximum
240.15
28
-
-
5.4
-
1.0
-
200
nsec
dB
KHz/°C
°C
45
48
0.24
25
-
DIP3512 (35.0x12.8x4.7mm3)
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=22nH
L2=10nH
C1=22pF
Source/Load Impedance=50 ohm
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.
LBS24001
2005-12-15
1.0
Page
1/3
Phone: +86-23-62920684
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com