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TFH44B PDF预览

TFH44B

更新时间: 2024-09-20 03:28:11
品牌 Logo 应用领域
VECTRON 过滤器
页数 文件大小 规格书
5页 37K
描述
Filter Specification

TFH44B 技术参数

生命周期:TransferredReach Compliance Code:compliant
风险等级:5.82中心频率或截止频率 (fo/fc):44 MHz
滤波器类型:SAW FILTER高度:5.08 mm
输入阻抗:50 OHM最大插入损耗:22 dB
长度:27.18 mm安装类型:THROUGH HOLE MOUNT
功能数量:1输出阻抗:50 OHM Ω
物理尺寸:L27.18XB13XH5.08 (mm)宽度:13 mm

TFH44B 数据手册

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File name : TFH44B.doc  
Version 1.0  
13.03.2001  
VI TELEFILTER  
Filter Specification  
TFH 44B  
1/5  
1. Measurement condition  
Ambient temperature TA:  
25 °C  
Input power level:  
0 dBm.  
Terminating impedances at f :  
c
for input:  
50  
50 Ω  
0 pF.  
0 pF.  
for output:  
2. Characteristics  
Remark:  
The insertion loss a is defined as the insertion loss at the nominal frequency fN . Reference level for the relative attenuation a  
of the TFS 44B  
e
rel  
is the insertion loss. The reference frequency f is the arithmetic mean value of the upper and lower frequencies at the 3 dB filter attenuation level  
c
relative to the insertion loss a . The temperature coefficient of frequency Tcf is valid both for the centre frequency f and the frequency response  
e
c
of the filter in the operating temperature range.  
Data  
typical values  
tolerance / limit  
Insertion loss (Reference level)  
a
19,8 dB  
max. 22  
44  
dB  
MHz  
e
Nominal frequency  
Centre frequency  
fN  
fC  
44  
MHz  
Pass band (PB) :  
fC ... fC ± 2,5 MHz  
Amplitude ripple in PB (p-p) :  
0,35 dB  
max.  
0,55 dB  
Bandwidth at ambient temperature:  
0,55 dB - band width  
5,52 MHz  
5,72 MHz  
6,07 MHz  
6,97 MHz  
7,40 MHz  
min.  
min.  
max.  
5,0  
6,0  
MHz  
MHz  
1
3
dB - band width  
dB - band width  
dB - band width  
dB - band width  
20  
42  
7,67 MHz  
Relative attenuation  
a
rel  
fN  
fN  
±
2,50 MHz  
0,35 dB  
max.  
0,55 dB  
...  
fN  
fN  
±
±
2,50 MHz ... fN  
3,835 MHz ... fN  
±
±
3,0  
20  
MHz  
MHz  
< 2,7 dB  
max.  
min.  
3
42  
dB  
dB  
43...50  
dB  
Group delay ( mean value in PB )  
Group delay ripple in fN ... fN ± 2,1 MHz (p-p) *)  
Deviation from linear phase in fN ... fN ± 2,1 MHz (p-p)  
2,1 µs  
max.  
max.  
max.  
3
75  
3,5°  
µs  
ns  
55  
ns  
2° ( r.m.s. 0,7° )  
Triple transit attenuation compared to main signal  
Crosstalk  
47  
65  
dB  
dB  
Temperature coefficient of frequency ( Tcf )  
Frequency deviation of fN over temperature :  
- 75  
ppm/K  
f (Hz) = Tcf(ppm/K) x (T - TA) x fN (MHz)  
c
Operating temperature range  
Storage temperature range  
25 °C  
- 25 °C ... + 85 °C  
* ) measured with smoothing aperture of 78,75 kHz.  
Generated:  
Dunzow W.P.  
Dr. Bert Wall  
Checked/Approved:  
VI TELEFILTER  
Vectron International, Inc.  
Potsdamer Straße 18  
267 Lowell Road  
D 14 513 TELTOW / Germany  
Tel: (+49) 3328 4784-0 / Fax: (+49) 3328 4784-30  
E-Mail: tft@telefilter.com  
Hudson, NH 03051 / USA  
Tel: (603) 598-0070 Fax: (603) 598-0075  
Email: vti@vtinh.com  
VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is assumed  
as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.  

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