SIPAT LB297DS01 297.5mhz saw filter Datasheet

297.5MHz SAW Filter
35MHz Bandwidth
China Electronics Technology Group Corporation
No.26 Research Institute
SIPAT Co., Ltd.
Part Number:
www.sipatsaw.com
LB297DS01
Specifications
Parameter
Unit
Minimum
Typical
Center Frequency
MHz
297.5
Insertion Loss
dB
12.5
1 dB Bandwidth
MHz
3 dB Bandwidth
MHz
38.9
35 dB Bandwidth
MHz
44.2
Passband Variation
dB
0.6
Ultimate Rejection(f0±35MHz)
dB
Group Delay Variation
nsec
35
Maximum
14
37.3
35
67
40
60
YZ
Subatrate Material
°C
Ambient Temperature
25
SMD7.0*5.0
Package Size
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
C1
L1=39nH
L2=27nH
C1=10pF
C2=12pF
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
Phone: +86-23-62920684
Part Number
LB297DS01
Rev. Date
2011-2-14
Rev.
4.1
Fax: +86-23-62805284
Page
1/3
www.sipatsaw.com / [email protected]
297.5MHz SAW Filter
35MHz Bandwidth
China Electronics Technology Group Corporation
No.26 Research Institute
SIPAT Co., Ltd.
Part Number:
www.sipatsaw.com
LB297DS01
Package Dimension
7.00±0.15
10
6
5
SIPAT
LB297DS01
XXYYZZ
2
4
3
0.80
1
5.00±0.15
9
7
1.50±0.15
8
0.60
1
1.00
2
3
4
9
5
2.54
10
8
7
6
1.27
Input:9
Output:4
SIPAT Co., Ltd.
( CETC No. 26 Research Institute )
Nanping Huayuan Road No. 14
Chongqing, China, 400060
Phone: +86-23-62920684
Part Number
LB297DS01
Rev. Date
2011-2-14
Rev.
4.1
Fax: +86-23-62805284
Page
2/3
www.sipatsaw.com / [email protected]
297.5MHz SAW Filter
35MHz Bandwidth
China Electronics Technology Group Corporation
No.26 Research Institute
SIPAT Co., Ltd.
Part Number:
www.sipatsaw.com
LB297DS01
Typical Performance
Frequency Respond
Passband Respond
-12.345
-8
-22.345
-9
-10
-32.345
-11
-42.345
-12
-13
-52.345
-14
-62.345
-15
-72.345
-16
-17
-82.345
237
252
267
282
297
312
327
342
2.5
357
Wideband Respond
2.6
2.7
2.8
2.9
3
f scale=10MHz
3.1
3.2
3.3
3.4
8
x 10
Group delay variation(f0±16MHz)
-22.8275
-32.8275
-42.8275
-52.8275
-62.8275
-72.8275
-82.8275
-92.8275
200.9
400.8
600.7
800.6
1000.5
VSWR
1200.4
1400.3
1600.2
1800.1
S11
VSWR
SIPAT Co., Ltd.
( CETC No. 26 Research Institute )
Nanping Huayuan Road No. 14
Chongqing, China, 400060
Phone: +86-23-62920684
S22
Part Number
LB297DS01
Rev. Date
2011-2-14
Rev.
4.1
Fax: +86-23-62805284
Page
3/3
www.sipatsaw.com / [email protected]
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