China Electronics Technology Group Corporation
No.26 Research Institute
70MHz SAW Filter
5MHz Bandwidth
Part Number:LBT7028
www.sipatsaw.com
SIPAT Co., Ltd.
Specifications
Parameter
Center Frequency
Insertion Loss
1 dB Bandwidth
3 dB Bandwidth
40 dB Bandwidth
50 dB Bandwidth
Passband Variation
Absolute Delay
Phase Linearity(f0±2.5MHz)
Group Delay Variation(f0±2.5MHz)
Ultimate Rejection
Material Temperature coefficient
Ambient Temperature
Package Size
Unit
MHz
dB
MHz
MHz
MHz
MHz
dB
usec
deg
Minimum
69.91
-
5
5.5
-
-
-
-
-
-
50
Typical
70
22.1
5.1
5.62
7.57
7.78
0.5
2.94
2
40
59
-1.26
25
Maximum
70.09
25
-
-
7.7
-
0.8
-
8
140
-
nsec
dB
KHz/°C
°C
DIP2212 (22.2x12.8x4.7mm3)
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=180nH
L3=L4=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.
LBT7028
2006-4-14
1.0
Page
1/3
Phone: +86-23-62920684
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
SIPAT [ SIPAT Co,Ltd ]
