TS5A3357: propagation delay(tpd) of TS5A3357

ryan chen

Prodigy 30 points

Part Number: TS5A3357
Other Parts Discussed in Thread: SN74CBTLV3257

Hi Sir:

I would like use TS5A3357 to switch SPI CS from different SPI device.

But i can't find propagation delay(tpd) of TS5A3357.

I need to check propagation delay because other SPI signals(CLK.MOSI.MISO) switch by SN74CBTLV3257 and

need to check SPI timing(setup/hold) time.

over 5 years ago

0 Clemens Ladisch over 5 years ago

Guru 294990 points

Any analog switch behaves pretty much like a small resistor. The propagation delay is smaller than 1 ns, but can increase if there is a capacitance on the line.

0 Rami Mooti1 over 5 years ago

TI__Mastermind 29128 points

Ryan,

Clemens is correct. I found some similar responses on the forum when searching for propagation delay:
https://e2e.ti.com/support/switches-multiplexers/f/388/t/758953

https://e2e.ti.com/support/switches-multiplexers/f/388/t/722414

These are just passive FET switches so you'll effectively see no propagation delay (low ns to ps) coming from a direct result of the switch.

Thanks,
Rami Mooti

0 ryan chen over 5 years ago in reply to Rami Mooti1

Prodigy 30 points

Dear Both:

I understand.

Thanks.

Ryan

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TS5A3357: propagation delay(tpd) of TS5A3357