TS5A3159-Q1: pin state of NO/NC

Chuqiang Wen

Part Number: TS5A3159-Q1

Hi Expert,

When IN=high, internal switch will turn on to NO pin. If we disconnect the NO pin from the external input signal, what is the state of NO pin? Hi-Z?

Does NO/NC pin have internal pull up or pull down resistor?

Thanks!

Ethan Wen

over 1 year ago

0 Clemens Ladisch over 1 year ago

Guru 258260 points

The connection between the selected NC/NO pin and the COM pin behaves pretty much like a 0.7 Ω resistor. So when the line is not driven otherwise, the NO and COM pins will be floating.

There are no internal pull-up/-down resistors. If you need a defined voltage, you can add them externally.

0 Scarlett Cao over 1 year ago in reply to Clemens Ladisch

TI__Expert 3470 points

Hi Clemens,

Can we understand for turn on turn off, customer can use the 0.7ohm resistor to calculate RC time constant and evaluate the signal transfer delay time?

For the existing path, can we understand the signal delay time is almost zero? Do we have that data? Thank you

Scarlett

0 Rami Mooti1 over 1 year ago in reply to Scarlett Cao

TI__Mastermind 25363 points

Hey Scarlett,

The turn off and turn on timing specs are already in the data sheet. I've shared a snippet below. Is this the information the customer wants?

Additionally, we have this FAQ :

(+) [FAQ] How do I Approximate Propagation Delay and Channel to Channel Skew in an Analog Switch/Multiplexer? - Switches & multiplexers forum - Switches & multiplexers - TI E2E support forums

that can help approximate the signal propagation delay time.

Thanks,
Rami