PDIUSBH11A Ver la hoja de datos (PDF) - Philips Electronics

Número de pieza

componentes Descripción

Fabricante

PDIUSBH11A

Universal Serial Bus Hub

Philips Electronics 

Philips Semiconductors

Universal Serial Bus Hub

Product specification

PDIUSBH11A

tPERIOD

DIFFERENTIAL

DATA LINES

CROSSOVER POINT

CROSSOVER POINT

EXTENDED

DIFFERENTIAL DATA TO

SEO/EOP SKEW

N * tPERIOD + tDEOP

SOURCE EOP WIDTH: tEOPT

RECEIVER EOP WIDTH: tEOPR1, tEOPR2

Figure 1. Differential data to EOP transition skew and EOP width

SV00837

VDD

UPSTREAM-

DIFFERENTIAL

DATA

VSS

CROSSOVER

POINT

DOWNSTREAM-

DIFFERENTIAL

DATA

Hub Delay

Downstream

tHDD

VSS

A. DOWNSTREAM HUB DELAY

DOWNSTREAM

DIFFERENTIAL

DATA

CROSSOVER

POINT

CROSSOVER

POINT

UPSTREAM

DIFFERENTIAL

DATA

Hub Delay

Upstream

tHDD

B. UPSTREAM HUB DELAY

SOP DISTORTION

tSOP = tHDD(SOP) – tHDD (NEXT J)

LOW SPEED TIMINGS ARE DETERMINED IN THE SAME WAY FOR:

tLHDD AND tLSOP

Figure 2. Hub Differential Data Delay and SOP distortion

CROSSOVER

POINT

SV00514

1999 Jul 22

21

Share Link: