China Electronics Technology Group Corporation
No.26 Research Institute
138.625MHz SAW Filter
0.50MHz Bandwidth
Part Number:
LBS13807
www.sipatsaw.com
SIPAT Co., Ltd.
Specifications
Parameter
Center Frequency
Insertion Loss
1 dB Bandwidth
3 dB Bandwidth
40 dB Bandwidth
Passband Variation
Absolute Delay
Phase Linearity
Group Delay Variation
Ultimate Rejection
f0
±
2.5MHz
f0
±
20MHz
Subatrate Material
Ambient Temperature
Package Size
°C
dB
dB
37
40
41
45
Quartz
25
SF－26
-
-
Unit
MHz
dB
MHz
MHz
MHz
dB
usec
Minimum
138.585
-
0.5
-
-
-
-
-
-
Typical
138.625
9.5
0.53
0.86
1.98
0.3
1.88
1.8
80
Maximum
138.665
11
-
-
2.10
0.6
-
-
-
deg
nsec
Notes:
1. All specifications are based on the test circuit shown
2. In production, devices will be tested at room temperature to a guardbanded specification to ensure
electrical compliance over 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
Matching Configuration
L1=82nH
L3=33nH
L2=56nH
C1=47pF
Source/Load Impedance=50 ohm
Notes - Component values may change depending
on board layout.
SIPAT Co., Ltd.
( CETC No. 26 Research Institute )
Nanping Huayuan Road No. 14
Chongqing, China, 400060
Part Number
Rev. Date
Rev.
LBS13807
2005-3-2
1.0
Page
1/3
Phone: +86-23-62920684
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
SIPAT [ SIPAT Co,Ltd ]
