China Electronics Technology Group Corporation
No.26 Research Institute
121.8MHz SAW Filter
2MHz Bandwidth
Part Number: LBS12204
www.sipatsaw.com
SIPAT Co., Ltd.
Specifications
Parameter
Center Frequency
Insertion Loss
1 dB Bandwidth
3 dB Bandwidth
40 dB Bandwidth
50 dB Bandwidth
Passband Variation
Absolute Delay
f0±1.45MHz
f0±1.65MHz
Ultimate Rejection
f0±2.05MHz
f0±6.05MHz
f0±15MHz
Material Temperature coefficient
Ambient Temperature
Package Size
Unit
MHz
dB
MHz
MHz
MHz
MHz
dB
usec
Minimum
121.7
-
-
2
-
-
-
-
35
45
50
55
55
Typical
121.8
23.8
1.96
2.13
2.84
2.92
0.3
3.93
51
55
58
60
60
0.122
25
Maximum
121.9
26
-
-
-
-
1.2
4
-
-
-
-
-
dB
dB
dB
dB
dB
KHz/°C
°C
DIP3512 (35.0x12.8x4.7mm3)
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
OUTPUT
50
Ω
L1=82nH
L2=68nH
C1=39pF
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.
LBS12204
2006-8-13
1.0
Page
1/3
Phone: +86-23-62808818
Fax: +86-23-62805284
www.sipatsaw.com / sawmkt@sipat.com
SIPAT [ SIPAT Co,Ltd ]
