SP5301CN Ver la hoja de datos (PDF) - Signal Processing Technologies

Número de pieza

componentes Descripción

Fabricante

SP5301CN

Universal Serial Bus Transceiver

Signal Processing Technologies 

AC WAVEFORMS (continued)

2.7V

SPEED

GND

2.7V

D+/D-

GND

50%

tSU

VCR

50%

tSU

VCR

D.U.T.

Test Point

25pF

Figure 6. Setup for Speed

Figure 7. Load for VM, VP, RERR, RSEO and RCV

D.U.T.

Test Point

22Ω

500Ω

50pF

V

V = 0V for tPZH and tPHZ

V = VCC for tPZL and tPLZ

Figure 8. Load for Enable and Disable Times

TEST

D-/LS

D+/LS

D-/FS

D+/FS

D.U.T.

SW1

Close

Open

Open

Close

22Ω

VCC

Test Point

SW1 1.5KΩ

15KΩ

CL

CL = 50pF, Full Speed

CL = 350pF, Low Speed

Figure 9. Load for D+/D-

NOTE: VX = VOL + 0.3V, VY = VOH - 0.3V, VCC > +3.0V, VOL and VOH are the typical output voltage drops that occur

with the output load.

SP5301DS/10

SP5301 Universal Serial Bus Transceiver

9

© Copyright 2000 Sipex Corporation

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