China Electronics Technology Group Corporation
No.26 Research Institute
844MHz SAW Filter
10MHz Bandwidth
Part Number: LBS84402
www.sipatsaw.com
SIPAT Co., Ltd.
Features
For IF SAW filter
Single-ended operation
Ceramic Surface Mount Package
Small size
RoHS compliant (2002/95/EC), Pb-free
Specifications
Parameter
Center Frequency
Insertion Loss(f0±4.75MHz)
1.5 dB Bandwidth
3 dB Bandwidth
35 dB Bandwidth
40 dB Bandwidth
Passband Variation(f0±4.75MHz)
Group Delay Variation(f0±4.75MHz)
Absolute Delay
Ultimate Rejection(f0±10MHz)
Material Temperature coefficient
Substrate Material
Ambient Temperature
DC Voltage
Input Power
ESD Class
Package Size
Notes:
1.
2.
All specifications are based on the test circuit shown;
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.
Unit
MHz
dB
MHz
MHz
MHz
MHz
dB
nsec
usec
dB
KHz/°C
-
°C
V
dBm
-
Minimum
-
-
-
9.35
-
-
-
-
-
40
Typical
844
30.4
9.12
9.41
11.06
11.16
1.2
150
1.88
45
0.84
Qz
25
0
Maximum
-
32
-
-
11.5
-
1.5
300
-
-
-
-
1C
10
SMD13.3*6.5
SIPAT Co., Ltd.
( CETC No.26 Research Institute )
#14 Nanping Huayuan Road,
Chongqing, China, 400060
Tel: +86-23-62808818
Part Number
Rev. Date
Ver.
LBS84402
2011-01-29
1.0
Page
1/3
Fax: +86-23-62808382
www.sipatsaw.com / sales@sipat.com
China Electronics Technology Group Corporation
No.26 Research Institute
844MHz SAW Filter
10MHz Bandwidth
Part Number: LBS84402
www.sipatsaw.com
SIPAT Co., Ltd.
Matching Configuration
INPUT
50
L1
C1
C2
OUTPUT
50
L2
L1=6.8nH
L2=3.9nH
C1=C2=6.8pF
Source/Load Impedance=50 ohm
Notes - Component values may change depending
on board layout.
Package Dimension
13.3±0.2
10
11
12
1
9
8
7
6.5±0.2
Pad Configuration:
Input:
6
5
11
SIPAT
LBS84402
XXYYZZ
2
3
4
Output: 5
Ground: All Others
1.80 0.19
0.76
0.4
0.8
Marking Configuration:
1) •: Pad Number 1 Index
2) SIPAT: Manufacturer Name
3) LBS84402: Part Number
4) XXYY: Date(Year/month)
5
6
1
1.5
2
3
4
12
11
10
2.54
5) ZZ: Identified Code
9
8
7
Package: SMD13.3*6.5
Unit: mm
SIPAT Co., Ltd.
( CETC No.26 Research Institute )
#14 Nanping Huayuan Road,
Chongqing, China, 400060
Tel: +86-23-62808818
Part Number
Rev. Date
Ver.
LBS84402
2011-01-29
1.0
Page
2/3
Fax: +86-23-62808382
www.sipatsaw.com / sales@sipat.com
China Electronics Technology Group Corporation
No.26 Research Institute
844MHz SAW Filter
10MHz Bandwidth
Part Number: LBS84402
www.sipatsaw.com
SIPAT Co., Ltd.
Typical Performance
Frequency Response
Type Performance
-20.4116
-30.4116
-40.4116
-29.9116
-28.9116
Passband Response
Type Performance
-29.4116
-50.4116
Magnitude(dB)
A m plitude ripple(dB )
-60.4116
-70.4116
-80.4116
-90.4116
-30.4116
-30.9116
-31.4116
-31.9116
-100.4116
-110.4116
-120.4116
-32.4116
820
825
830
835
840
845
850
Frequency(MHz)
855
860
865
-32.9116
834
836
838
840
842
844
Frequency(MHz)
846
848
850
852
854
Horizontal: 5MHz/Div
Vertical: 10dB/Div
Horizontal: 2MHz/Div
Vertical: 0.5dB/Div
Group Delay Variation(f0±4.7MHz)
Type Performance
40
Phase Linearity(f0±4.7MHz)
Type Performance
2400
30
2200
20
10
2000
G roup Delay T im e(ns )
0
X: 848.7
Y: -7.322
1800
X: 839.3
Y: 1771
X: 848.7
Y: 1781
Degree(deg)
-10
X: 839.3
Y: -11.31
-20
1600
-30
1400
-40
1200
834
836
838
840
842
844
Frequency(MHz)
846
848
850
852
854
-50
834
836
838
840
842
844
Frequency(MHz)
846
848
850
852
854
Horizontal: 2MHz/Div
Vertical: 200ns/Div
Horizontal: 2MHz/Div
Vertical: 10deg/Div
Smith Chart S11
+j1.0
+j0.5
+j2.0
Smith Chart S22
+j1.0
+j0.5
+j2.0
+j0.2
+j5.0
+j0.2
+j5.0
0.2
0.5
1.0
2.0
5.0
0.2
0.5
1.0
2.0
0.0
∞
5.0
0.0
∞
-j0.2
-j5.0
-j0.2
-j5.0
-j0.5
-j1.0
-j2.0
-j0.5
-j1.0
-j2.0
SIPAT Co., Ltd.
( CETC No.26 Research Institute )
#14 Nanping Huayuan Road,
Chongqing, China, 400060
Tel: +86-23-62808818
Part Number
Rev. Date
Ver.
LBS84402
2011-01-29
1.0
Page
3/3
Fax: +86-23-62808382
www.sipatsaw.com / sales@sipat.com
