SIPAT LBT25004 250mhz saw filter 3mhz bandwidth Datasheet

250MHz SAW Filter
3MHz Bandwidth
China Electronics Technology Group Corporation
No.26 Research Institute
SIPAT Co., Ltd.
Part Number: LBT25004
www.sipatsaw.com
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
Unit
Minimum
Typical
Maximum
Center Frequency
MHz
-
250
-
Insertion Loss
dB
-
2.2
3
1 dB Bandwidth
MHz
2.5
3.14
-
3 dB Bandwidth
MHz
3.2
3.99
-
Passband Variation(248.75~251.25MHz)
dB
-
1
1.5
Absolute Delay
usec
-
0.33
-
1~239MHz
dB
35
54
-
260~300MHz
dB
35
50
-
Ultimate Rejection
Material Temperature coefficient
KHz/°C
-8.0
Substrate Material
-
36LT
Ambient Temperature
°C
25
DC Voltage
V
0
Input Power
dBm
ESD Class
-
-
-
10
1A
SMD3.8*3.8
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
LBT25004
Rev. Date
2010-12-24
Ver.
1.0
Fax: +86-23-62808382
Page
www.sipatsaw.com / [email protected]
1/3
250MHz SAW Filter
3MHz Bandwidth
China Electronics Technology Group Corporation
No.26 Research Institute
SIPAT Co., Ltd.
Part Number: LBT25004
www.sipatsaw.com
Matching Configuration
Source/Load Impedance=50 ohm
OUTPUT
50Ω
INPUT
50Ω
Notes - Component values may change depending
on board layout.
Package Dimension
3.80 0.15
Pad Configuration:
8
Input:
7
1
Output: 6
3.80 0.15
6
2
SIPAT
25004
XXYYZZ
2
Ground: All Others
5
3
1.50 0.25
4
Marking Configuration:
1) •: Pad Number 1 Index
2) SIPAT: Manufacturer Name
1.00 0.15
3) 25004: Part Number
8
4) XXYY: Date(Year/month)
7
1
5) ZZ: Identified Code
2
6
1.27
3
5
0.60
4
Package: SMD3.8*3.8
Unit: mm
SIPAT Co., Ltd.
( CETC No.26 Research Institute )
#14 Nanping Huayuan Road,
Chongqing, China, 400060
Tel: +86-23-62808818
Part Number
LBT25004
Rev. Date
2010-12-24
Ver.
1.0
Fax: +86-23-62808382
Page
www.sipatsaw.com / [email protected]
2/3
250MHz SAW Filter
3MHz Bandwidth
China Electronics Technology Group Corporation
No.26 Research Institute
SIPAT Co., Ltd.
Part Number: LBT25004
www.sipatsaw.com
Typical Performance
Frequency Response
Passband Response
Type Performance
Type Performance
7.7987
-0.7013
-2.2013
-1.2013
-12.2013
-1.7013
-2.2013
A m plitude ripple(dB )
-32.2013
-42.2013
-52.2013
-2.7013
-3.2013
-62.2013
-3.7013
-72.2013
-4.2013
-82.2013
-92.2013
235
240
245
250
Frequency(MHz)
Horizontal: 5MHz/Div
255
260
-4.7013
246
265
Vertical: 10dB/Div
247
248
249
250
Frequency(MHz)
251
Horizontal: 1MHz/Div
Group Delay Variation(f0±1.5MHz)
252
253
254
Vertical: 0.5dB/Div
Phase Linearity(f0±1.5MHz)
Type Performance
Type Performance
1400
40
1200
30
1000
20
800
10
600
X: 251.5
Y: 424.1
X: 248.5
Y: 410.8
Degree(deg)
G roup Delay T im e(ns )
X: 250
Y: 317.5
400
X: 248.5
Y: 2.352
X: 250
Y: 0.451
0
X: 251.5
Y: -4.834
200
-10
0
-20
-200
-400
-30
-600
250
Frequency(MHz)
251
Horizontal: 1MHz/Div
252
-40
247
253
Vertical: 200ns/Div
248
249
Vertical: 10deg/Div
+j0.5
+j2.0
0.0
∞
-j0.2
-j5.0
-j0.5
+j5.0
0.5
5.0
2.0
-j0.2
+j2.0
+j0.2
+j5.0
0.2
+j0.2
1.0
253
+j1.0
+j0.5
0.5
252
Smith Chart S22
+j1.0
∞
-j5.0
-j0.5
-j2.0
-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
251
Horizontal: 1MHz/Div
Smith Chart S11
0.0
250
Frequency(MHz)
5.0
249
2.0
248
1.0
247
0.2
Magnitude(dB)
-22.2013
Part Number
LBT25004
Rev. Date
2010-12-24
Ver.
1.0
Fax: +86-23-62808382
Page
www.sipatsaw.com / [email protected]
3/3
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