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利用HA5024设计的视频多路复用器减少了信号失真
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大小:21 |
2009-06-05
王平
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Video multiplexers pose a difficult design challenge. They
must perform several functions, such as matching the input
line impedance, signal amplification, signal switching, and
driving the output line, without degrading or adding noise
and transients to the signal. Typically, the signal flows
through the multiplexer where it’s degraded by the multiplexers
errors. In this design, the signal flows through the op
amp and thus isn’t degraded by the multiplexer.
must perform several functions, such as matching the input
line impedance, signal amplification, signal switching, and
driving the output line, without degrading or adding noise
and transients to the signal. Typically, the signal flows
through the multiplexer where it’s degraded by the multiplexers
errors. In this design, the signal flows through the op
amp and thus isn’t degraded by the multiplexer.
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