航天工程(如星载设备)往往对体积、重量、功耗以及可靠性等指标有较高的要求。这对于一些简单的、规模较小的电路实现起来已很不容易,而对于高速(钟频>100MHz)、大规模的复杂信号处理系统,这样的要求就更难实现了。 对于钟频大于100MHz的数字信号进行处理,一般只能用ECL电路实现。对于复杂信号分析和高速采样存贮这样一个复杂的处理系统,要用上百片ECL电路、数百片TTL电路和一 Aerospace engineering (such as spaceborne equipment) tend to have higher requirements on volume, weight, power consumption, and reliability. This has not been easy for some simpler, smaller circuits, which is harder to achieve with large, complex signal processing systems at high speeds (clock frequencies> 100MHz). For the clock frequency greater than 100MHz digital signal processing, generally only ECL circuit. For complex signal analysis and high-speed sampling and storage of such a complex processing system, use hundreds of ECL circuits, hundreds of TTL circuits and a