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参数资料
| 型号： | SF2079D |
| 厂商： | RFM |
| 文件页数： | 1/5页 |
| 文件大小： | 0K |
| 描述： | SAW FILTR IF 251.045MHZ SM3838-8 |
| 标准包装： | 500 |
| 频率： | 251.045MHz 中心 |
| 带宽： | 14.5MHz |
| 滤波器类型： | 带通 |
| 插入损耗： | 15.5dB |
| 应用： | IF |
| 封装/外壳： | 8-SMD，无引线 |
| 安装类型： | 表面贴装 |
| 包装： | 带卷 (TR) |
| 高度（最大）： | 0.055"（1.40mm） |
| 尺寸/尺寸： | 0.150" L x 0.150" W（3.80mm x 3.80mm） |
?
SF2079D
?
Low Insertion Loss
?
?
3.8 X 3.8 mm Surface-Mount Case
Single Ended Input and Output
251.045 MHz
?
Complies with Directive 2002/95/EC (RoHS)
Pb
SAW Filter
Absolute Maximum Ratings
Rating
Maximum Incident Power in Passband
Max. DC voltage between any 2 terminals
Storage Temperature Range
Value
+13
30
-40 to +85
Units
dBm
VDC
°C
Suitable for lead-free soldering - Max Soldering Temperature
Electrical Characteristics
260°C for 30 s
SM3838-8
Nominal Center Frequency
Characteristic
Sym
f C
Notes
1
Min
Typ
251.045
Max
Units
MHz
Insertion Loss
Amplitude Ripple (p-p)
Pass bandwidth of -1.5dB
Pass bandwidth of -3dB
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
1
15.5
0.7
0.5
0.8
0.9
0.5
0.6
13.9
14.5
17.5
1.5
1.5
1.5
1.5
1.5
1.5
dB
dB
dB
dB
dB
dB
dB
MHz
MHz
Low side attenuation Fc<(Fc-16.5 MHz)
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)
Temperature Coefficient of frequency
33
28
24
35
37
32
30
40
-18
dB
dB
dB
dB
ppm/K
Delay 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
45
25
20
15
25
45
70
70
90
90
70
90
ns
ns
ns
ns
ns
ns
Terminating Source / Load Impedance: Z IN / Z OUT
150
Ohms
Operating Temperature Range
-40
+85
°C
Case Style
Lid Symbolization (Y=year, WW=week, S=shift)
Notes:
SM3838-8 3.8 x 3.8 mm Nominal Footprint
RFM TBD YWWS
1.
2.
3.
4.
5.
6.
7.
8.
9.
Unless noted otherwise, all specifications apply over the operating temperature range with filter soldered to the specified demonstration board with impedance matching to
50 ? and measured with 50 ? network analyzer.
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.
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.
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
Page 1 of 5
?1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
SF2079D-060607
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SF2079D-1 | 制造商:RFM 制造商全称:RF Monolithics, Inc 功能描述:251.045 MHz SAW Filter |
| SF2079E | 制造商:RFM 制造商全称:RF Monolithics, Inc 功能描述:251.045 MHz SAW Filter |
| SF207A/BGN | 制造商:SUNON 功能描述:AC FANS |
| SF207A/SGN | 制造商:SUNON 功能描述:AC FANS |
| SF207ABGN | 制造商:SUNON 功能描述:120X120 - Bulk |
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