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EH50033 参数 Datasheet PDF下载

EH50033图片预览
型号: EH50033
PDF下载: 下载PDF文件 查看货源
内容描述: [Pin Diode, 30V V(BR), Silicon, DIE-1]
分类和应用:
文件页数/大小: 56 页 / 645 K
品牌: TEMEX [ TEMEX ]
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POWER GENERATION DIODES  
Step recovery diodes and m ultiplier varactor applications  
STEP RECOVERY DIODES AND MULTIP LIER  
VARACTOR AP P LICATIONS  
A Step Recovery Diode (SRD) generates pulses that can be used to m ultiply frequencies, and to set up  
reference points, e.g. for synchronizing test instrum ents.  
This device operates by alternately producing and consum ing a charge, based on the frequency of its  
input signal. During forward bias, the SRD conducts and builds up its charge. During reverse bias,  
the SRD m aintains conduction by consum ing its charge. When the charge has been fully consum ed, the  
SRD snaps off, i.e. very quickly reverts to zero conduction.  
This device acts as a switch, controlling current flow by alternately storing and releasing its charge, forming  
pulses at a repetition rate equal to the frequency of its input.  
The output of a step recovery diode is m ost often used in two ways:  
a pulse train can be applied to resonant circuits, which provides output power at a frequency  
above that of the original input,  
a pulse train can be used to develop a series of frequencies at m ultiples of the original input  
frequencies.  
Typical applications of step recovery diodes include oscillators, power transm itters and drivers,  
for telecom m unications, telem etry, radar and test equipm ent.  
In choosing a SRD, the significant characteristics include:  
Output Frequency (f ) ; Breakdown Voltage (V ) ; Junction Capacitance (C ) ; Minority Carrier Lifetime (τl);  
o
BR  
j
Snap-offTim e (t ) ;Therm al Resistance (R ) and Output Power (P ).  
so  
th  
o
Multiplier varactors  
A m ultiplier varactor is a physical stack of series-connected SRD units.This configuration is capable of  
m ultiplying power.  
Power out  
Power in  
Packages for m ultiplier varactors are designed to dissipate the power yield  
(
(
Most of these packages hold from 2 to 4 chips, this type of com ponents are available on custom er  
request.  
12-41  
Vol. 1  
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