China Electronics Technology Group Corporation
No.26 Research Institute
115MHz SAW Filter
4.1MHz Bandwidth
Part Number:
LBT11529
www.sipatsaw.com
SIPAT Co., Ltd.
Specifications
Parameter
Center Frequency
Insertion Loss
3 dB Bandwidth
30 dB Bandwidth
40 dB Bandwidth
Passband Variation
Group Delay Variation
（
80% of 3dB Bandwidth
）
Absolute Delay
Ultimate Rejection
Subatrate Material
Ambient Temperature
Package Size
°C
Unit
MHz
dB
MHz
MHz
MHz
dB
nsec
usec
Minimum
114.9
Typical
115
28.5
Maximum
115.1
30
4.1
4.16
4.8
4.9
0.8
100
3.88
4.9
5.2
1
200
4
dB
48
55
112LiTaO
3
25
DIP3512 (35.0x12.8x4.7mm
3
)
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=39nH
L2=56nH
C2=47pF
C1=47pF
C1
C2
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.
LBT11529
2005-1-12
1.0
Page
1/3
Phone: +86-23-62920684
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
SIPAT [ SIPAT Co,Ltd ]
