China Electronics Technology Group Corporation
No.26 Research Institute
70MHz SAW Filter
4.75MHz Bandwidth
Part Number:
LBT70A01
www.sipatsaw.com
SIPAT Co., Ltd.
Specifications
Parameter
Center Frequency
Insertion Loss
3 dB Bandwidth
35 dB Bandwidth
45 dB Bandwidth
50 dB Bandwidth
Passband Variation
Ultimate Rejection(f0
±
15MHz)
Absolute Delay
Material Temperature coefficient
Ambient Temperature
Package Size
Unit
MHz
dB
MHz
MHz
MHz
MHz
dB
dB
Minimum
69.95
Typical
70
26
Maximum
70.05
27
4.8
5.55
6.0
6.75
1.2
4.7
4.75
5.47
5.54
5.57
0.8
55
60
3.9
-1.26
25
4
usec
KHz/°C
°C
DIP3512 (35.2x12.7x5.2mm
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
C1
C2
L1=120nH
C1=82pF
L2=120nH
C2=56pF
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.
SP LBT70A01
2005-7-22
1.0
Page
1/3
Phone: +86-23-62920684
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
SIPAT [ SIPAT Co,Ltd ]
