China Electronics Technology Group Corporation
No.26 Research Institute
400MHz Low-loss SAW Filter
45MHz Bandwidth
Part Number: SP40001
www.sipatsaw.com
SIPAT Co., Ltd.
Specifications
Parameter
Center Frequency
Insertion Loss(f0±20MHz)
1.5 dB Bandwidth
3 dB Bandwidth
35 dB Bandwidth
Passband Variation(f0±20MHz)
Absolute Delay
Group Delay Variation(f0±20MHz)
1
�½�
370MHz
Ultimate Rejection
430
�½�
500MHz
500
�½�
1000MHz
Material Temperature coefficient
Ambient Temperature
Package Size
Unit
MHz
dB
MHz
MHz
MHz
dB
usec
Minimum
-
-
40
45
-
-
-
-
30
30
30
Typical
400
16
45.02
46.25
53.8
0.8
0.44
40
35
35
38
-37.6
25
SMD7.0*5.0
Maximum
-
18
-
-
56
1.5
-
150
-
-
nsec
dB
dB
dB
KHz/°C
°C
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
L2
L1=L2=10nH
OUTPUT
50
Ω
L1
C1=6.8pF
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
Ver.
SP40001
2007-04-25
1.0
Page
1/4
Phone: +86-23-62808818
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
SIPAT [ SIPAT Co,Ltd ]
