Gunning Transceiver Logic


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Gunning Transceiver Logic

(electronics, hardware, integrated circuit, standard)
(GTL) A standard for electrical signals in CMOS circuits used to provide higher data transfer speeds with smaller voltage swings The GTL signal swings between 0.4 volts and 1.2 volts with a reference voltage of about 0.8 volts. Only a small deviation of 0.4 volts (or thereabouts) from the reference voltage is required to switch between on and off states. Therefore, a GTL signal is said to be a low voltage swing logic signal.

Gunning Transceiver Logic has several advantages. The resistive termination of a GTL signal provides a clean signalling environment Moreover, the low terminating voltage of 1.2 volts results in reduced voltage drops across the resistive elements. GTL has low power dissipation and can operate at high frequency and causes less electromagnetic interference (EMI).

GTL/BTL: A Low-Swing Solution for High-Speed Digital Logic.
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References in periodicals archive ?
This 18-bit CMOS integrated circuit combines a universal transceiver function with TTL-to-GTLP translation and is intended to serve as an interface between circuit cards operating at relatively high TTL levels and a system backplane operating at the lower voltage levels of Gunning Transceiver Logic (GTL).
Future library updates will include support for high-speed I/O such as high-speed transceiver logic (HSTL), Gunning transceiver logic (GTL) and pseudo-emitter-coupled logic (pECL).