analog switch

Josh5566

Prodigy 180 points

Other Parts Discussed in Thread: TS12A12511

Hi,

I want to find a analog switch solution to switch the MIC and PA out signal. Please see the block diagram as figure1.

I have measured the PA output signal with 4ohm/2W by scope as figure2.

Can you suggest which analog switch I can do this?

figure1

AMP_OUTPR_CN signal voltage as below

1. Peak to peak is 4V.

2. Voltage maximum is 8.16V.

3. Voltage minmum is 4.16V.

over 4 years ago

0 T_DK over 4 years ago

Prodigy 50 points

Use a small signal relay

0 Bryan Marshall over 4 years ago

TI__Genius 10974 points

Hi Josh,

I can recommend two switches (2:1, 1 channel) that should be able to meet your application needs:

1. TMUX6219 which will have very low RON of around 2 ohms and low leakage as well.

2. TMUX6119 which will have an RON around 120ohms, but extremely low leakage (sub pA).

Both switches will have plenty of bandwidth and can support voltage ranges greater than 10V single supply.

Thanks!

Bryan

0 Josh5566 over 4 years ago in reply to Bryan Marshall

Prodigy 180 points

Hi Bryan,

Because the cost is consideration, Can we use the TS12A12511?

Thanks!

Josh

0 Pierre SCHLOSSER over 4 years ago in reply to Josh5566

Prodigy 60 points

Yes. It is perfect too because THD is very low and you can pass your signal if Vcc is at least 9V (single supply).

0 Josh5566 over 4 years ago in reply to Bryan Marshall

Prodigy 180 points

Hi Bryan,

Because the cost is consideration, Can we use the TS12A12511?

Thanks!

Josh

========================================================

Hi Bryan,

Do you have any command?

Thanks!

Josh

0 Bryan Marshall over 4 years ago in reply to Josh5566

TI__Genius 10974 points

Hi Josh,

Yes, the TS12A12511 would also work perfectly fine here! You can use that if cost is of high consideration.

Thanks!
Bryan

Audio

Audio forum

analog switch