China Electronics Technology Group Corporation
No.26 Research Institute
138.24MHz SAW Filter
4MHz Bandwidth
Part Number: LBS13808
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
Ultimate Rejection
Material Temperature coefficient
Ambient Temperature
Package Size
Unit
MHz
dB
MHz
MHz
MHz
dB
usec
Minimum
138.19
-
3.84
4.1
-
-
-
45
Typical
138.24
24.5
3.86
4.13
5.08
0.4
2.95
53
0.1382
25
Maximum
138.29
26
-
-
5.17
0.7
3
-
dB
KHz/°C
°C
DIP2712 (27.0x12.8x4.7mm3)
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
INPUT
50
Ω
C1
L1
L2
L1=L2=100nH
OUTPUT
50
Ω
C2
Notes - Component values may change depending
on board layout.
C1=47pF
C2=18pF
Source/Load Impedance=50 ohm
SIPAT Co., Ltd.
( CETC No. 26 Research Institute )
Nanping Huayuan Road No. 14
Chongqing, China, 400060
Part Number
Rev. Date
Rev.
LBS13808
2006-7-3
1.0
Page
1/3
Phone: +86-23-62808818
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
SIPAT [ SIPAT Co,Ltd ]
