China Electronics Technology Group Corporation
No.26 Research Institute
455MHz SAW Filter
5MHz Bandwidth
Part Number: LBT45505
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(452.5
½
457.5MHz)
Passband Variation(452.5
½
457.5MHz)
Input/Output VSWR(452.5
½
457.5MHz)
0.3
½
350MHz
350
½
445MHz
462.5
½
467.5MHz
Ultimate Rejection
467.5
½
905MHz
905
½
915MHz
915
½
1500MHz
@3640.0MHz
Material Temperature coefficient
Substrate Material
Ambient Temperature
Operating Temperature Range
Storage 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
dB
dB
KHz/°C
-
°C
°C
°C
V
dBm
-
Minimum
-
-
-
-
25
23
42
22
22
20
14
Typical
455
1.8
0.7
1.8
27
24
44
28
24
22
17
-14.6
42LT
25
Maximum
-
2.4
1
2
-
-
-
-
-
-
-
-40
-40
-
-
-
0
-
1A
+85
+85
30
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.
LBT45505
2010-10-10
2.0
Page
1/3
Fax: +86-23-62808382
www.sipatsaw.com / sales@sipat.com
China Electronics Technology Group Corporation
No.26 Research Institute
455MHz SAW Filter
5MHz Bandwidth
Part Number: LBT45505
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
D55E
XXYY
5
3
1.25±0.17
4
1.15±0.12
1.50
Marking Configuration:
1) •: Pad Number 1 Index
2) D55E: 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.
LBT45505
2010-10-10
2.0
Page
2/3
Fax: +86-23-62808382
www.sipatsaw.com / sales@sipat.com
China Electronics Technology Group Corporation
No.26 Research Institute
455MHz SAW Filter
5MHz Bandwidth
Part Number: LBT45505
www.sipatsaw.com
SIPAT Co., Ltd.
Typical Performance
Frequency Response
Type Performance
8.996
-1.004
-11.004
-0.504
0.496
Passband Response
Type Performance
-0.004
-21.004
Magnitude(dB)
Amplitude ripple(dB)
-31.004
-41.004
-51.004
-61.004
-1.004
-1.504
-2.004
-2.504
-71.004
-81.004
-91.004
410
420
430
440
450
460
470
Frequency(MHz)
480
490
500
-3.004
-3.504
446
448
450
452
454
456
Frequency(MHz)
458
460
462
464
Horizontal: 10MHz/Div
Vertical: 10dB/Div
Horizontal: 2MHz/Div
Vertical: 0.5dB/Div
Group Delay Variation(f0±2.5MHz)
Type Performance
10
140
8
Phase Linearity(f0±2.5MHz)
Type Performance
120
6
4
100
Group Delay Time(ns)
X: 452.5
Y: 85.72
X: 457.5
Y: 84.71
X: 452.5
Y: 1.61
2
Degree(deg)
80
0
X: 457.5
Y: -0.4758
-2
60
-4
40
-6
-8
20
-10
450
450
451
452
453
454
455
Frequency(MHz)
456
457
458
459
460
451
452
453
454
455
Frequency(MHz)
456
457
458
459
460
Horizontal: 1MHz/Div
Vertical: 20ns/Div
Horizontal: 1MHz/Div
Vertical: 2deg/Div
VSWR11(f0±2.5MHz)
Type Performance (VSWR1)
2.6
2.6
VSWR22(f0±2.5MHz)
Type Performance (VSWR2)
2.4
2.4
2.2
2.2
2
X: 457.5
Y: 1.819
2
X: 457.5
Y: 1.819
Magnitude(dB)
1.8
Magnitude(dB)
1.8
1.6
X: 452.5
Y: 1.364
1.6
X: 452.5
Y: 1.395
1.4
1.4
1.2
1.2
1
1
0.8
448
450
452
454
456
Frequency(MHz)
458
460
462
0.8
448
450
452
454
456
Frequency(MHz)
458
460
462
SIPAT Co., Ltd.
( CETC No.26 Research Institute )
#14 Nanping Huayuan Road,
Chongqing, China, 400060
Tel: +86-23-62808818
Part Number
Rev. Date
Ver.
LBT45505
2010-10-10
2.0
Page
3/3
Fax: +86-23-62808382
www.sipatsaw.com / sales@sipat.com
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