China Electronics Technology Group Corporation
No.26 Research Institute
70MHz SAW Filter
20.4MHz Bandwidth
Part Number:
LBN7044
www.sipatsaw.com
SIPAT Co., Ltd.
Specifications
Parameter
Center Frequency
Insertion Loss
3 dB Bandwidth
45 dB Bandwidth
Passband Variation
Absolute Delay
Ultimate Rejection
Subatrate Material
Ambient Temperature
Package Size
°C
Unit
MHz
dB
MHz
MHz
dB
usec
Minimum
69.9
Typical
70
25
Maximum
70.1
26
20.4
20.6
22.12
1
2.4
22.2
1.5
dB
50
52
128-LiNbO3
25
DIP2212 (22.7x12.7x5.2mm
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=270nH
L3=330nH
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.
LBN7044
2005-6-13
2.0
Page
1/3
Phone: +86-23-62920684
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com