FSA221 Ver la hoja de datos (PDF) - Fairchild Semiconductor

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Fabricante

FSA221

USB2.0 High-Speed (480Mbps) and Audio Switches with Negative Signal Capability

Fairchild Semiconductor 

Test Diagrams

VON

Dn or R/L

VSW

GND

D+/R or D-/L

ION

GND

VCNTRL = fn (Vaudio and Vbus)

RON = VON / ION

Figure 10. On Resistance

I (OFF)

A

Vsw

GND D+, D-

or R/L

D+/R or D-/L

VCNTRL = fn (Vaudio and Vbus)

Figure 11. Off Leakage

D+, D- or R/L

IA(ON)

A

D+/R or

D-/L

Vsw

GND

VCNTRL = fn (Vaudio and Vbus)

Figure 12. On Leakage

D+, D- or R,L

VOUT

CL

RL

GND RS

D+/R or D-/L

Vsw

GND

VCNTRL = fn (Vaudio and Vbus)

GND

RL , RS and CL are function of application

environment (see AC Tables for specific values)

CL includes test fixture and stray capacitance

Figure 13. AC Test Circuit Load

tRISE = 2.5ns

tFALL = 2.5ns

3V

Input - VASel

10%

GND

90%

50%

90%

50%

VOH

Output - VOUT

90%

VOL

tON

tOFF

10%

90%

Figure 14. Turn-On / Turn-Off

Waveforms (ASel)

tRISE = 1us

tFALL = 1 us

Vbus

Input - VCNTRL

10%

GND

90%

Vth(max)

Vth(min)

VOH

Output - VOUT

90%

VOL

VCNTRL = fn (Vaudio and Vbus)

tON

tOFF

10%

90%

Vth = Vbusth or Vaudioth

Figure 15. Turn-On / Turn-Off Waveforms (USB/Audio)

© 2006 Fairchild Semiconductor Corporation

FSA221 • Rev. 1.1.0

10

www.fairchildsemi.com

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