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SF2079E

更新时间： 2024-11-29 12:23:11
品牌 Logo 应用领域
RFM LTE
页数 文件大小 规格书
5页 487K
描述
251.045 MHz SAW Filter

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SF2079E 数据手册

 浏览型号SF2079E的Datasheet PDF文件第2页浏览型号SF2079E的Datasheet PDF文件第3页浏览型号SF2079E的Datasheet PDF文件第4页浏览型号SF2079E的Datasheet PDF文件第5页 
Preliminary  
SF2079E  
• Low Insertion Loss  
• 3.0 X 3.0 X 1.2 mm Surface-mount Case  
• Differential Input and Output  
• Complies with Directive 2002/95/EC (RoHS)  
251.045 MHz  
SAW Filter  
Pb  
Absolute Maximum Ratings  
Rating  
Value  
+10  
Units  
dBm  
VDC  
°C  
Maximum Incident Power in Passband  
DC Voltage on any Non-ground Terminal  
Operating Temperature Range  
30  
-40 to +85  
-60 to +95  
Storage Temperature Range  
°C  
Suitable for Lead-free Soldering - Maximum Soldering Profile  
260 °C for 30 s  
SM3030-8  
Electrical Characteristics  
Characteristic  
Sym  
Notes  
Min  
Typ  
251.045  
12.5  
Max  
Units  
MHz  
dB  
Center Frequency  
f
C
1
Insertion Loss  
IL  
15.0  
Amplitude Ripple  
fc - 6.2500 to fc - 4.3925 MHz  
1.3  
0.5  
0.5  
0.7  
0.6  
0.9  
13.4  
14.1  
38  
2.0  
1.5  
1.5  
1.5  
1.5  
2.5  
fc - 4.3925 to fc - 2.5350 MHz  
fc - 2.5350 to fc - 0.0250 MHz  
dB  
P-P  
fc + 0.0250 to fc + 2.5350 MHz  
fc + 2.5350 to fc + 4.3925 MHz  
fc + 4.3925 to fc + 6.2500 MHz  
1.5 dB Bandwidth centered at fc  
3.0 dB Bandwidth centered at fc  
Low Side Attenuation < 234.545 MHz ( < fc - 16.5 MHz)  
Low Side Attenuation, 234.545 to 240.545 MHz (fc - 10.5 MHz)  
High Side Attenuation, 260.045 to 267.545 MHz (fc + 9.0 MHz)  
High Side Attenuation > 267.545 MHz ( > fc + 16.5 MHz)  
Temperature Coefficient of frequency  
Group Delay Ripple  
1, 2  
MHz  
35  
32  
14  
30  
34  
dB  
26  
35  
-18  
ppm/K  
fc - 6.2500 to fc - 4.3925 MHz  
1, 2, 3  
44  
37  
90  
70  
fc - 4.3925 to fc - 2.5350 MHz  
fc - 2.5350 to fc - 0.0250 MHz  
39  
120  
120  
70  
ns  
P-P  
fc + 0.0250 to fc + 2.5350 MHz  
fc + 2.5350 to fc + 4.3925 MHz  
fc + 4.3925 to fc + 6.2500 MHz  
Source/Load Impedance  
40  
34  
37  
90  
150  
ohms  
Case Style  
SM3030-8 3.0 x 3.0 mm Nominal Footprint  
TBD YWWS  
6
Lid Symbolization (YY=year, WW=week, S=shift) See note 4  
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.  
Notes:  
and external impedance matching design. See Application Note No. 42  
for details.  
Notes:  
1.  
Unless noted otherwise, all specifications apply over the operating  
4.  
The design, manufacturing process, and specifications of this filter are  
subject to change.  
temperature range with filter soldered to the specified demonstration  
board with impedance matching to 50 Ω and measured with 50 Ω network  
analyzer.  
5.  
6.  
7.  
Tape and Reel Standard Per ANSI / EIA 481.  
US and international patents may apply.  
RFM, stylized RFM logo, and RF Monolithics, Inc. are registered  
trademarks of RF Monolithics, Inc.  
2.  
3.  
Unless noted otherwise, all frequency specifications are referenced to the  
nominal center frequency, fc.  
Rejection is measured as attenuation below the minimum IL point in the  
passband. Rejection in final user application is dependent on PCB layout  
www.RFM.com E-mail: info@rfm.com  
©2009-2010 by RF Monolithics, Inc.  
Page 1 of 5  
SF2079E - 7/21/10  
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