CLC018 datasheet(7/18 Pages) NSC

No de pièce	CLC018

Description	8 x 8 Digital Crosspoint Switch, 1.4 Gbps

PDF	18 Pages

Scroll/Zoom	100%

Fabricant	NSC [National Semiconductor (TI)]

Site Internet	http://www.national.com

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7 / 18 page

Timing Diagrams (Continued)

Operation

INPUT INTERFACING

The inputs to the CLC018 are high impedance differential in-

puts (see the equivalent input circuit in

Figure 4). The

CLC018 can be operated with either ECL or PECL (+5V ref-

erenced ECL), depending upon the power supply connec-

tions. The inputs are differential and must both be within the

range of V

CC– 2VtoVCC + 0.4V in order to function properly.

SINGLE ENDED INPUTS

Differential inputs are the preferred method of providing data

to the CLC018, however, there are times when the only sig-

nal available is single ended. To use the CLC018 with a

single ended input, the unused input pin needs to be biased

at a point higher than the low logic level, and lower than the

high logic level. For best noise performance, the middle of

DS100088-12

FIGURE 3. Timing Diagram — Switch Configuration

DS100088-13

FIGURE 4. Equivalent Input Circuit

CLC018 Fiches technique(PDF) 7 Page - National Semiconductor (TI)