China Electronics Technology Group Corporation
No.26 Research Institute
912MHz SAW Filter
6MHz Bandwidth
Part Number: LBT91201
www.sipatsaw.com
SIPAT Co., Ltd.
Features
For RF SAW filter
Single-ended operation
Ceramic Surface Mount Package
Small size
No matching required for operation at 50Ω
RoHS compliant (2002/95/EC), Pb-free
Specifications
Parameter
Center Frequency
Insertion Loss
（
909~915MHz
）
Passband Variation
（
909~915MHz
）
DC
½
800MHz
800
½
890MHz
Ultimate Rejection
930
½
950MHz
950~2000MHz
2000~3000MHz
VSWR
（
909~915MHz
）
Group delay variation
（
909~915MHz
）
Material Temperature coefficient
Substrate Material
Ambient Temperature
Operating Temperature Range
DC Voltage
Input Power
ESD Class
Package Size
Notes:
1.
2.
3.
4.
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;
Electrical margin has been built into the design to account for the variations due to temperature drift and
manufacturing tolerances;
This is the optimum impedance in order to achieve the performance show.
Unit
MHz
dB
dB
dB
dB
dB
dB
dB
-
ns
KHz/°C
-
°C
°C
V
dBm
-
Minimum
-
-
-
35
35
40
25
20
-
-
Typical
912
2.4
0.9
37
37
51
45
32
1.6
25
-29.1
42LT
25
Maximum
-
3.8
1.2
-
-
-
-
-
2
50
-45
-
-
0
-
1A
+85
15
SMD3.0*3.0
SIPAT Co., Ltd.
( CETC No.26 Research Institute )
#14 Nanping Huayuan Road,
Chongqing, China, 400060
Tel: +86-23-62808818
Part Number
Rev. Date
Ver.
LBT91201
2010-04-30
1.0
Page
1/3
Fax: +86-23-62808382
www.sipatsaw.com / sales@sipat.com
China Electronics Technology Group Corporation
No.26 Research Institute
912MHz SAW Filter
6MHz Bandwidth
Part Number: LBT91201
www.sipatsaw.com
SIPAT Co., Ltd.
Matching Configuration
Source/Load Impedance=50 ohm
INPUT
50
Ω
OUTPUT
50
Ω
Notes - Component values may change depending
on board layout.
Package Dimension
3.00±0.10
1
6
3.00±0.10
Pad Configuration:
Input: 2
Output: 5
Ground: All Others
2
91201
XXYY
5
3
1.25±0.17
4
1.15±0.12
1.50
Marking Configuration:
1) •: Pad Number 1 Index
2) 91201: Part Number
3) XXYY: Date(Year/month)
6
1.60
5
4
1.30
0.85
1
2
3
0.60
Package: SMD3.0*3.0
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.
LBT91201
2010-04-30
1.0
Page
2/3
Fax: +86-23-62808382
www.sipatsaw.com / sales@sipat.com
China Electronics Technology Group Corporation
No.26 Research Institute
912MHz SAW Filter
6MHz Bandwidth
Part Number: LBT91201
www.sipatsaw.com
SIPAT Co., Ltd.
Typical Performance
Frequency Response
Type Performance
8.4905
Passband Response
Type Performance
-0.0095
-1.5095
-0.5095
-11.5095
-1.0095
-21.5095
-1.5095
-31.5095
A m plitude ripple(dB )
820
840
860
880
900
920
Frequency(MHz)
940
960
980
1000
M agnitude(dB )
-41.5095
-2.0095
-51.5095
-2.5095
-61.5095
-3.0095
-71.5095
-3.5095
-81.5095
-91.5095
-4.0095
895
900
905
910
Frequency(MHz)
915
920
925
930
Horizontal: 20MHz/Div
Vertical: 10dB/Div
Horizontal: 5MHz/Div
Vertical: 0.5dB/Div
Group Delay Variation(f0±3MHz)
Type Performance
120
20
Phase Linearity(f0±3MHz)
Type Performance
100
15
80
10
G roup Delay T im e(ns )
60
X: 909
Y: 58.71
X: 915
Y: 59.07
5
Degree(deg)
X: 909
Y: 4.639
X: 915
Y: 0.55
40
0
20
-5
0
-10
-20
902
904
906
908
910
912
Frequency(MHz)
914
916
918
920
922
-15
904
906
908
910
912
Frequency(MHz)
914
916
918
920
Horizontal: 2MHz/Div
Vertical: 20ns/Div
Horizontal: 2MHz/Div
Vertical: 5deg/Div
VSWR11
Type Performance (VSWR1)
2.2
2.2
VSWR22
Type Performance (VSWR2)
2
2
1.8
1.8
1.6
X: 909
Y: 1.53
1.6
X: 909
Y: 1.55
1.4
M agnitude(dB )
M agnitude(dB )
1.4
1.2
X: 915
Y: 1.108
1.2
X: 915
Y: 1.13
1
1
0.8
0.8
0.6
900
905
910
Frequency(MHz)
915
920
0.6
900
905
910
Frequency(MHz)
915
920
SIPAT Co., Ltd.
( CETC No.26 Research Institute )
#14 Nanping Huayuan Road,
Chongqing, China, 400060
Tel: +86-23-62808818
Part Number
Rev. Date
Ver.
LBT91201
2010-04-30
1.0
Page
3/3
Fax: +86-23-62808382
www.sipatsaw.com / sales@sipat.com
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