LBT25004 Datasheet, PDF (1/3 Pages) SIPAT Co,Ltd – 250MHz SAW Filter 3MHz Bandwidth

China Electronics Technology Group Corporation
No.26 Research Institute
SIPAT Co., Ltd.
www.sipatsaw.com
250MHz SAW Filter
3MHz Bandwidth
Part Number: LBT25004
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
-
Ultimate Rejection
260～300MHz
dB
35
50
-
Material Temperature coefficient
KHz/°C
-8.0
Substrate Material
-
36LT
Ambient Temperature
°C
25
DC Voltage
V
0
Input Power
dBm
-
-
10
ESD Class
-
1A
Package Size
SMD3.8*3.8
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
Part Number
Rev. Date
Ver.
LBT25004
2010-12-24
1.0
Page 1/3
Tel: [phone]
Fax: [phone] www.sipatsaw.com / [e-mail]