China Electronics Technology Group Corporation
No.26 Research Institute
70MHz SAW Filter
25.58MHz Bandwidth
Part Number:
LBN7049
www.sipatsaw.com
SIPAT Co., Ltd.
Specifications
Parameter
Center Frequency
Insertion Loss
3 dB Bandwidth
20 dB Bandwidth
30 dB Bandwidth
40 dB Bandwidth
Passband Variation
Absolute Delay
Ultimate Rejection
Material Temperature coefficient
Ambient Temperature
Package Size
Unit
MHz
dB
MHz
MHz
MHz
MHz
dB
usec
Minimum
69.95
-
25.58
-
-
-
-
-
50
Typical
70
26
26.03
27.57
28.06
28.31
0.6
1.9482
54
-5.74
25
Maximum
70.05
28
-
-
-
28.5
1.2
-
-
dB
KHz/°C
°C
DIP3512 (35.2x12.7x5.2mm3)
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=82nH
L3=180nH
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.
LBN7049
2005-9-28
1.0
Page
1/3
Phone: +86-23-62920684
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
China Electronics Technology Group Corporation
No.26 Research Institute
70MHz SAW Filter
25.58MHz Bandwidth
Part Number:
LBN7049
www.sipatsaw.com
SIPAT Co., Ltd.
Package Dimension
35.00±0.5
0.35±0.05
2.54±0.2
25.40±0.2
2.54±0.2
7.62±0.2
7.00
5.70
12.80±0.5
3
2
1
SIPAT Co., Ltd.
Phone: +86-23-62920684
4
5
Part Number
Rev. Date
Rev.
6
Input:1
Output:5
LBN7049
2005-9-28
1.0
Page
2/3
( CETC No. 26 Research Institute )
Nanping Huayuan Road No. 14
Chongqing, China, 400060
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
China Electronics Technology Group Corporation
No.26 Research Institute
70MHz SAW Filter
25.58MHz Bandwidth
Part Number:
LBN7049
www.sipatsaw.com
SIPAT Co., Ltd.
Typical Performance
Frequency Respond
-25.9699
Passband Respond
-21
-22
-35.9699
-23
-45.9699
-24
-55.9699
-25
-26
-27
-28
-29
-65.9699
-75.9699
-85.9699
-95.9699
-30
-105.9699
55
-115.9699
30
40
50
60
70
80
90
100
110
60
65
70
75
80
85
Group Delay Variation(f0±12MHz)
Phase Linearity(f0±12MHz)
Smith Chart S11
Smith Chart S22
SIPAT Co., Ltd.
( CETC No. 26 Research Institute )
Nanping Huayuan Road No. 14
Chongqing, China, 400060
Part Number
Rev. Date
Rev.
LBN7049
2005-9-28
1.0
Page
3/3
Phone: +86-23-62920684
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
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