TSB43AB22A: TSB43AB22A: PCI BUS Overshoot Undershoot specification

user5982066

Part Number: TSB43AB22A

What is the allowable value for overshoot and undershoot, provided that the clamp diode is not conducting?

Can you define Voltage and time duaration?

example1) Undershoot 0V-xxV less than xxns.

example1) Overshoot Vcc+xxV less than xxxns.

0 user5982066 over 2 years ago

I want to know Maximum AC Ratings(Overshoot/Undershoot).

0 Clemens Ladisch over 2 years ago

Guru 242980 points

The clamp diodes are plain silicon diodes. As shown in the absolute maximum ratings, they allow 0.5 V, regardless of time.

0 user5982066 over 2 years ago in reply to Clemens Ladisch

Thank you. but,

It has exceeded VCC + 0.5V and -0.5V for a period of 10 to 20ns.
Please tell me the allowable value from this.

0 JMMN over 2 years ago in reply to user5982066

Which signals have the overshoot / undershoot? TI does not define an allowable time to exceed the absolute max ratings.

Regards,

JMMN

0 user5982066 over 2 years ago in reply to JMMN

>Which signals have the overshoot / undershoot?

it,s PCI signal(PCI_AD[31:00],PCI_C-*BE[3:0],*PCI_FRAME････.)

>The clamp diodes are plain silicon diodes.

Does the silicon diode have If / Vf characteristics and Peak forward surge current? (Including frequency)

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