A sealed coaxial matched load at hot or cold condition used in the measurement of low-noise FET amplifier and millimeter wave mixer is described.

本文介绍了一种密封式匹配负载，以及将它置于冷、热态作为一种噪声源在低噪声fet放大器及毫米波混频器测试中的应用。

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The sense amplifier circuit is commonly symmetrical which needs a matched layout design, so the system design and layout design is also discussed at the end.

通常情况下，灵敏放大器均设计为对称结构，对版图有着很高的对称要求，最后也对系统和版图设计做了简要讨论。

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With the new headphone amplifiers, Sennheiser is now taking up the tradition of the Orpheus, providing music lovers with the perfect combination of Sennheiser headphones and a specially matched amplifier.

ENGADGET: Sennheiser unveils HDVA 600 analog headphone amp, asks for $1,600