
Phone: + 86-23-62920684 Fax: + 86-23-62805284 www.sipatsaw.com / sawmkt@sipat.com
Part Number
LBT14050
Rev. Date
2006-4-5
SIPAT Co., Ltd.
( CETC No. 26 Research Institute )
Nanping Huayuan Road No. 14
Chongqing, China, 400060
Rev.
1.0
Page 1/3
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140MHz SAW Filter
9MHz Bandwidth
Part Number:LBT14050
Specifications
Parameter
Unit
Minimum
Typical
Maximum
Center Frequency
Insertion Loss
MHz
139.875
140
140.125
dB
-
27.2
-
1 dB Bandwidth
MHz
9.1
9.17
-
3 dB Bandwidth
MHz
9.3
9.41
-
40 dB Bandwidth
MHz
-
10.22
10.3
50 dB Bandwidth
Passband Variation
MHz
-
10.28
11.5
dB
-
0.7
1
Absolute Delay
usec
-
3.63
3.75
Phase Linearity(f0±4.5MHz)
deg
-
7
-
Group Delay Variation(f0±4.5MHz)
nsec
-
100
-
Ultimate Rejection
dB
50
57
-
Material Temperature coefficient
KHz/°C
-2.52
Ambient Temperature
°C
25
Package Size
DIP2712 (27.2x12.7x5.2mm3)
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= 27nH L2= 33nH
C1= C2= 56pF
Source/ Load I mpedance= 50 ohm
Notes - Component values may change depending
on board layout.
L2
L1
C1
C2