831724 datasheet(19/22 Pages) IDT

部件名	831724

功能描述	Differential Clock/Data Multiplexer

PDF	22 Pages

Scroll/Zoom	100%

制造商	IDT [Integrated Device Technology]

网页	http://www.idt.com

标志

19 / 22 page

Revision B November 16, 2016

831724 Datasheet

3. Calculations and Equations.

The purpose of this section is to calculate power dissipation on the IC per HCSL output pair.

HCSL output driver circuit and termination are shown in Figure 5.

Figure 5. HCSL Driver Circuit and Termination

HCSL is a current steering output which sources a maximum of 17mA of current per output. To calculate worst case on-chip power dissipation,

use the following equations which assume a 50

 load to ground.

The highest power dissipation occurs at VDD_MAX.

Power

= (VDD_MAX – VOUT) * IOUT,

since VOUT = IOUT * RL

Power

= (VDD_MAX – IOUT * RL) * IOUT

Power

= (3.6V – 17mA * 50

) * 17mA

Total Power Dissipation per output pair = 46.8mW

VDD

VOUT



IOUT = 17mA

RREF =

475

 ± 1%

831724 数据表(PDF) 19 Page - Integrated Device Technology