Patent Number: 6,426,646

Title: ECL terminating circuit

Abstract: An ECL terminating circuit, in which it is prevented that the amplitude ofan output signal from an ECL outputting circuit or a PECL outputtingcircuit is lowered caused by that the supply voltage for the circuit hasbeen lowered, and also it is prevented that the waveform of the outputsignal is deteriorated caused by that the distance of a transmission linewhere the output signal being high speed is transmitted is made to belong, is provided. The ECL terminating circuit consists of a PECLoutputting circuit, a resistor, a transmission line, a load circuit, and aterminal element. And the terminal element is connected to the resistor inseries and the resistance value of the terminal element is about 0 .OMEGA.at a direct current (DC), but is made to be large at an alternatingcurrent (AC).

Inventors: Yoshizawa; Munetoshi (Tokyo, JP), Tachigori; Masashi (Tokyo, JP)

Assignee:

International Classification: H03K 19/018 (20060101); H04L 25/02 (20060101); H03K 019/003 ()

Expiration Date: 07/30/2014