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参数资料
| 型号： | EL4453 |
| 英文描述： | Video Fader |
| 中文描述： | 视频推子 |
| 文件页数： | 3/12页 |
| 文件大小： | 297K |
| 代理商： | EL4453 |
EL4453C
Video Fader
Power Supplies
Contd
For instance the EL4453C draws a maximum of
21 mA With light loading RPAR
x% and the
dissipation with g5V supplies is 210 mW The
maximum supply voltage that the device can run
on for a given PD and the other parameters is
VS maxe(PDaVO2 RPAR)(2ISaVO RPAR)
The maximum dissipation a package can offer is
PD max e (TD max b TA max) iJA
where TD max is the maximum die tempera-
ture 150 C for reliability less to retain
optimum electrical performace
TA max is the ambient temperature 70 C
for commercial and 85 C for industrial
range
iJA is the thermal resistance of the
mounted package
obtained from data-
sheet dissipation curves
The more difficult case is the SO-14 package
With a maximum die temperature of 150 C and a
maximum ambient temperature of 70 C the 80 C
temperature rise and package thermal resistance
of 110 W gives a dissipation of 636 mW at 85 C
This allows g15V operation over the commercial
temperature range but higher ambient tempera-
ture or output loading may require lower supply
voltages
Output Loading
The output stage of the EL4453C is very power-
ful
It typically can source 80 mA and sink
120 mA Of course this is too much current to
sustain and the part will eventually be destroyed
by excessive dissipation or by metal traces on the
die opening The metal traces are completely reli-
able while delivering the 30 mA continuous out-
put given in the Absolute Maximum Ratings ta-
ble in this data sheet or higher purely transient
currents
Gain changes only 02% from no load to 100
X
load Heavy resistive loading will degrade fre-
quency response and video distortion for loads
k
100
X
Capacitive loads will cause peaking in the fre-
quency response If capacitive loads must be driv-
en a small-valued series resistor can be used to
isolate it 12
X to 51X should suffice A 22X series
resistor will limit peaking to 25 dB with even a
220 pF load
11
相关PDF资料 |
PDF描述 |
|---|---|
| EL4453C | Video Fader |
| EL4453CN | Video Fader |
| EL4453CS | Video Fader |
| EL4581CN | Sync Separator, 50% Slice, S-H, Filter |
| EL4581CS | Sync Separator, 50% Slice, S-H, Filter |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EL4453C | 制造商:ELANTEC 制造商全称:ELANTEC 功能描述:Video Fader |
| EL4453CN | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Video Fader |
| EL4453CS | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Video Fader |
| EL4500-NA | 制造商:L COM 功能描述:ICRON EL4500 SYSTEM DVI-USB |
| EL4501 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Video Front End (VFE) |
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