LB297DS01 Datasheet, PDF (1/3 Pages) SIPAT Co,Ltd – 297.5MHz SAW Filter 35MHz Bandwidth

China Electronics Technology Group Corporation
No.26 Research Institute
SIPAT Co., Ltd.
www.sipatsaw.com
297.5MHz SAW Filter
35MHz Bandwidth
Part Number: LB297DS01
Specifications
Parameter
Unit
Minimum
Typical
Maximum
Center Frequency
MHz
Insertion Loss
dB
297.5
12.5
14
1 dB Bandwidth
3 dB Bandwidth
35 dB Bandwidth
Passband Variation
MHz
35
37.3
MHz
38.9
MHz
44.2
67
dB
0.6
Ultimate Rejection(f0±35MHz)
dB
35
40
Group Delay Variation
nsec
60
Subatrate Material
YZ
Ambient Temperature
°C
25
Package Size
SMD7.0*5.0
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
C1
L2
C2
L1=39nH L2=27nH
C1=10pF C2=12pF
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.
LB297DS01
2011-2-14
4.1
Page 1/3
Phone: [phone]
Fax: [phone] www.sipatsaw.com / [e-mail]