PECL输入设备应用HSTL信号

摘要：本应用笔记讨论接口差分HSTL（高速收发器逻辑）输出到PECL （正射极耦合逻辑）输入条件。

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Keywords: HSTL, PECL, high speed, interface standards, differential HSTL, high speed transceiver logic, Jedec Sep 27, 2002
standard, Jedec std, differential

APPLICATION NOTE 1752
Applying HSTL Signals to PECL Input Devices

Abstract: This application note discusses the conditions for interfacing differential HSTL (High-Speed
Transceiver Logic) outputs to PECL (Positive Emitter Coupled Logic) inputs.


PECL and HSTL are two of the high-speed interface standards in common use. PECL (positive supply referred
ECL) is an older standard than HSTL and was developed as a higher speed alternative to the TTL logic standards.
HSTL was defined as an interface standard for digital integrated circuits. The two standards are not directly
compatible. Some PE