How much is the pulse width external channel identifies

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Stone_Mei
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How much is the pulse width external channel identifies

Post by Stone_Mei » Fri Dec 29, 2017 7:18 am

Hello,

How much is the minimum pulse width which external channel of Pico3205D MSO can identify?

Look forward to your reply.

Stone_Mei
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Re: How much is the pulse width external channel identifies

Post by Stone_Mei » Wed Jan 03, 2018 10:00 am

hello!

Is anyone here?

Martyn
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Re: How much is the pulse width external channel identifies

Post by Martyn » Thu Jan 04, 2018 7:09 am

As shown in the specifications the minimum detectable pulse width is 5ns for the digital channels, and related to the sampling interval and rise time (3.5ns for the 3205D MSO) for Channels A and B.

What are you specifically looking to do ?
Martyn
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Stone_Mei
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Re: How much is the pulse width external channel identifies

Post by Stone_Mei » Mon Jan 08, 2018 4:09 am

Hello,

I want to use EXT channel to identify pulse signal.When the scope confirms the specified pulse width,there will be triggered.

Martyn
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Re: How much is the pulse width external channel identifies

Post by Martyn » Mon Jan 08, 2018 6:52 am

The 3205D MSO does not have an EXT input, you would need to use one of the digital channels for this.
Martyn
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Stone_Mei
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Re: How much is the pulse width external channel identifies

Post by Stone_Mei » Tue Jan 16, 2018 9:18 am

Martyn wrote:The 3205D MSO does not have an EXT input, you would need to use one of the digital channels for this.
Sorry,it is 3403D.

Martyn
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Re: How much is the pulse width external channel identifies

Post by Martyn » Wed Jan 17, 2018 10:30 am

The external input can be used for rising/falling edges, or high/low levels so pulse width is not relevant which is why we don't have the specification for it.
Martyn
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Stone_Mei
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Re: How much is the pulse width external channel identifies

Post by Stone_Mei » Mon Jan 22, 2018 9:35 am

Martyn wrote:The external input can be used for rising/falling edges, or high/low levels so pulse width is not relevant which is why we don't have the specification for it.
OK,thank you.

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