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SF2079D PDF预览

SF2079D

更新时间： 2024-01-21 05:56:07
品牌 Logo 应用领域
RFM LTE
页数 文件大小 规格书
5页 238K
描述
251.045 MHz SAW Filter

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SF2079D 技术参数

生命周期：ObsoleteReach Compliance Code：compliant
风险等级：5.84Is Samacsys：N
其他特性：TAPE AND REEL中心频率或截止频率 (fo/fc)：251.045 MHz
滤波器类型：SAW FILTER高度：1.4 mm
输入阻抗：150 OHM最大插入损耗：15 dB
JESD-609代码：e4长度：3.13 mm
安装类型：SURFACE MOUNT功能数量：1
最高工作温度：85 °C最低工作温度：-40 °C
输出阻抗：150 OHM Ω物理尺寸：L3.13XB3.13XH1.4 (mm)/L0.123XB0.123XH0.055 (inch)
端子面层：GOLD OVER NICKEL宽度：3.13 mm
Base Number Matches：1

SF2079D 数据手册

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®
SF2079D  
•
•
•
•
Low Insertion Loss  
3.8 X 3.8 mm Surface-Mount Case  
Single Ended Input and Output  
Complies with Directive 2002/95/EC (RoHS)  
251.045 MHz  
Pb  
SAW Filter  
Absolute Maximum Ratings  
Rating  
Value  
+13  
Units  
dBm  
VDC  
°C  
Maximum Incident Power in Passband  
Max. DC voltage between any 2 terminals  
Storage Temperature Range  
30  
-40 to +85  
Suitable for lead-free soldering - Max Soldering Temperature  
260°C for 30 s  
SM3838-8  
Electrical Characteristics  
Characteristic  
Sym  
Notes  
Min  
Typ  
Max  
Units  
Nominal Center Frequency  
f
1
251.045  
MHz  
C
Insertion Loss  
1
15.5  
0.7  
0.5  
0.8  
0.9  
0.5  
0.6  
13.9  
14.5  
37  
17.5  
1.5  
1.5  
1.5  
1.5  
1.5  
1.5  
dB  
dB  
Amplitude Ripple (p-p)  
Fc-6.250 to Fc-4.3925 MHz  
Fc-4.3925 to Fc-2.535 MHz  
Fc-2.5350 to Fc-0.025 MHz  
Fc+0.025 to Fc+2.535 MHz  
Fc+2.5350 to Fc+4.3925 MHz  
Fc+4.3925 to Fc+6.250 MHz  
dB  
dB  
dB  
dB  
dB  
Pass bandwidth of -1.5dB  
MHz  
MHz  
dB  
Pass bandwidth of -3dB  
Low side attenuation Fc<(Fc-16.5 MHz)  
33  
28  
24  
35  
Low side attenuation between: (Fc-16.5 MHz)...(Fc-10.5 MHz)  
High side attenuation between: (Fc+9.0 MHz)...(Fc+16.5 MHz)  
High side attenuation Fc>(Fc+16.5 MHz)  
32  
dB  
30  
dB  
40  
dB  
Temperature Coefficient of frequency  
-18  
70  
70  
90  
90  
70  
90  
ppm/K  
ns  
Delay Ripple (p-p)  
Fc-6.250 to Fc-4.3925 MHz  
45  
25  
Fc-4.3925 to Fc-2.535 MHz  
Fc-2.5350 to Fc-0.025 MHz  
Fc+0.025 to Fc+2.535 MHz  
Fc+2.5350 to Fc+4.3925 MHz  
Fc+4.3925 to Fc+6.250 MHz  
ns  
20  
ns  
15  
ns  
25  
ns  
45  
ns  
Terminating Source / Load Impedance: Z / Z  
150  
Ohms  
°C  
IN  
OUT  
Operating Temperature Range  
Case Style  
-40  
+85  
SM3838-8 3.8 x 3.8 mm Nominal Footprint  
RFM TBD YWWS  
Lid Symbolization (Y=year, WW=week, S=shift)  
Notes:  
1.  
Unless noted otherwise, all specifications apply over the operating temperature range with filter soldered to the specified demonstration board with impedance matching to  
50 W and measured with 50 W network analyzer.  
2.  
Rejection is measured as attenuation below the minimum IL point in the passband. Rejection in final user application is dependent on PCB layout and external impedance  
matching design. See Application Note No. 42 for details.  
3.  
4.  
5.  
The design, manufacturing process, and specifications of this filter are subject to change.  
Tape and Reel Standard ANSI / EIA 481.  
Either Port 1 or Port 2 may be used for either input or output in the design. However, impedances and impedance matching may vary between Port 1 and Port 2, so that  
the filter must always be installed in one direction per the circuit design.  
6.  
7.  
8.  
9.  
US and international patents may apply.  
RFM, stylized RFM logo, and RF Monolithics, Inc. are registered trademarks of RF Monolithics, Inc.  
©Copyright 1999, RF Monolithics Inc.  
Electrostatic Sensitive Device. Observe precautions for handling.  
RF Monolithics, Inc.  
RFM Europe  
Phone: (972) 233-2903  
Phone: 44 1963 251383  
Fax: (972) 387-8148  
Fax: 44 1963 251510  
E-mail: info@rfm.com  
http://www.rfm.com  
SF2079D-060607  
Page 1 of 5  
©1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.  
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