SIPAT LB140DS37

140MHz SAW Filter
28MHz Bandwidth
China Electronics Technology Group Corporation
No.26 Research Institute
SIPAT Co., Ltd.
Part Number: LB140DS37
www.sipatsaw.com
Features
—
For IF SAW filter
—
Single-ended operation
—
Ceramic Surface Mount Package
—
Small size
—
RoHS compliant (2002/95/EC), Pb-free
Specifications
Parameter
Unit
Minimum
Typical
Maximum
Center Frequency
MHz
-
140
-
Insertion Loss
dB
-
17.8
22
Passband Variation(126~154MHz)
dB
-
0.6
2
129~151MHz
deg
-
3
5
126~154MHz
deg
-
3
7
Input/Output return loss(126~154MHz)
dB
10
11.1/11.6
-
Absolute Delay
usec
-
0.66
-
10~112MHz
dB
35
44
-
168~198MHz
dB
35
37
-
198~225MHz
dB
30
55
-
225~250MHz
dB
35
51
-
Phase Linearity
Ultimate Rejection
Material Temperature coefficient
KHz/°C
-13.16
Substrate Material
-
YZ LN
Ambient Temperature
°C
25
Operating Temperature Range
°C
-40
-
+85
Storage Temperature Range
°C
-45
-
+105
DC Voltage
V
Input Power
dBm
ESD Class
-
0
-
-
10
1A
SMD9.1*4.8
Package Size
Notes:
1.
All specifications are based on the test circuit shown;
2.
In production, all specifications are measured by Agilent Network analyzer and full 2 port calibration at room
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.
SIPAT Co., Ltd.
( CETC No.26 Research Institute )
#14 Nanping Huayuan Road,
Chongqing, China, 400060
Tel: +86-23-62808818
Part Number
LB140DS37
Rev. Date
2008-11-04
Ver.
1.0
Fax: +86-23-62808382
Page
www.sipatsaw.com / [email protected]
1/3
140MHz SAW Filter
28MHz Bandwidth
China Electronics Technology Group Corporation
No.26 Research Institute
SIPAT Co., Ltd.
Part Number: LB140DS37
www.sipatsaw.com
Matching Configuration
L1
INPUT
50
L1=L2=100nH
L2
R1
C1
OUTPUT
50
R2
C1=6.8pF
C2=3.9pF
R1=360Ω
R2=510Ω
Source/Load Impedance=50 ohm
C2
Notes - Component values may change depending
on board layout.
Package Dimension
9.1
Pad Configuration:
9
6
7
SIPAT
LB140DS37
XXYYZZ
10
Input:
9
Output:
4
Ground: All Others
4
3
2
1.2
1
5
4.8
8
1) •: Pad Number 1 Index
0.65±0.05
1.5
Marking Configuration:
2.54
2) SIPAT: Manufacturer Name
3) LB140DS37: Part Number
4) XXYY: Date(Year/month)
0.8
Package: SMD9148
1
Unit: mm
SIPAT Co., Ltd.
( CETC No.26 Research Institute )
#14 Nanping Huayuan Road,
Chongqing, China, 400060
Tel: +86-23-62808818
3.2
4.8
2.54
5) ZZ: Identified Code
Part Number
LB140DS37
Rev. Date
2008-11-04
Ver.
1.0
Fax: +86-23-62808382
Page
www.sipatsaw.com / [email protected]
2/3
140MHz SAW Filter
28MHz Bandwidth
China Electronics Technology Group Corporation
No.26 Research Institute
SIPAT Co., Ltd.
Part Number: LB140DS37
www.sipatsaw.com
Typical Performance
Frequency Respond
Passband Respond
Type Performance
Type Performance
-7.83
-16.33
-17.83
-16.83
-27.83
-17.33
-17.83
Amplitude ripple(dB)
-47.83
-57.83
-67.83
-18.33
-18.83
-77.83
-19.33
-87.83
-19.83
-97.83
-107.83
40
-20.33
60
80
100
120
140
160
Frequency(MHz)
Horizontal: 20MHz/Div
180
200
220
110
240
Vertical: 10dB/Div
120
130
140
Frequency(MHz)
150
Horizontal: 10MHz/Div
Group Delay Variation(f0±14MHz)
160
170
Vertical: 0.5dB/Div
Phase Linearity(f0±14MHz)
Type Performance
Type Performance
800
10
8
750
6
4
700
X: 154
Y: 1.043
2
X: 126
Y: 652.5
X: 154
Y: 657.1
X: 140
Y: 644.1
650
Degree(deg)
Group Delay Time(ns)
X: 140
Y: -0.2548
0
X: 126
Y: -1.283
-2
-4
600
-6
-8
550
-10
125
130
135
140
Frequency(MHz)
145
Horizontal: 5MHz/Div
150
155
160
-12
165
Vertical: 50ns/Div
115
120
125
130
+j2.0
160
165
+j5.0
0.0
0.5
∞
-j5.0
-j0.2
+j2.0
+j0.2
0.2
5.0
2.0
1.0
155
Vertical: 2deg/Div
+j0.5
+j5.0
+j0.2
0.5
150
+j1.0
+j0.5
∞
-j5.0
-j0.2
-j2.0
-j0.5
-j2.0
-j1.0
-j1.0
SIPAT Co., Ltd.
( CETC No.26 Research Institute )
#14 Nanping Huayuan Road,
Chongqing, China, 400060
Tel: +86-23-62808818
145
Smith Chart S22
+j1.0
-j0.5
140
Frequency(MHz)
Horizontal: 5MHz/Div
Smith Chart S11
0.0
135
5.0
120
2.0
115
1.0
500
0.2
Magnitude(dB)
-37.83
Part Number
LB140DS37
Rev. Date
2008-11-04
Ver.
1.0
Fax: +86-23-62808382
Page
www.sipatsaw.com / [email protected]
3/3