TS5A3159A: Better crosstalk spec

Roy Chou1

Part Number: TS5A3159A
Other Parts Discussed in Thread: TMUX1072, TS5A9411, TMUX154E, TMUX1136, TMUX1575, SN3257-Q1

Team,

We use TS5A3159A to achieve video signal switch. The frequency is 41MHz and 36MHz. Could you help find the better crosstalk part for us? better than TS5A3159A, V+=5V.

Roy

over 3 years ago

0 Kate Dickson over 3 years ago

TI__Expert 5660 points

Hi Roy,

TI has several 2:1 switches with improved crosstalk specifications. Please take note of the characteristic crosstalk curve which will give you a better idea of crosstalk performance at the frequencies of your applications. I found a few devices that may suit your application: TMUX1072 and TS5A9411. Take a look at the crosstalk characterization plots below, and let me know if you are interested in either device.

Best regards,
Kate

0 Roy Chou1 over 3 years ago in reply to Kate Dickson

TI__Genius 12515 points

Hi Kate,

it looks like that 30~40MHz crosstalk is not good. Could you help find the our desired spec which is showing as below

Crosstalk is around -70dB@30-40M
I think Rds is as low as possible. TS5A3159A is around 1.2 ohm@3.3V.
3.3Vsupply.

Thank you.

Roy

0 Kate Dickson over 3 years ago in reply to Roy Chou1

TI__Expert 5660 points

Hi Roy,

Thank you for the additional information on your spec requirements. Since you are trying to minimize Ron, I have three devices for you to take a look at: TMUX1136, TMUX1575, and TMUX154E. I recommend the new TMUX1575 which has the lowest typical Ron of these options, with the crosstalk performance you are looking for.