Digital signal processor: the chip inside an optical module that cleans up and reshapes the signal on the way out, and again on the way in.
数字信号处理器
| Move变动 | Where it appeared出现位置 | What it means这句话在说什么 |
|---|---|---|
| — | Why a chip designer paid $115 billion for a laser maker 数字信号处理器 · 第 8 张术语卡 | It is the single most expensive part of a high-speed module, and it is Marvell's business — which is why the company is paying up for the part next door. DSP 的价值在于「用算法弥补光器件的物理缺陷」。速率越高，光信号越脏，DSP 就越重要，也越贵。这解释了为什么在 800G 以上的模块里，一颗看起来不起眼的处理芯片能占掉四成以上的成本——它不是配角，是定价权的来源。 |