FPGA Central

Are *clock rate* and *sample rate* the same thing?

"Curious" <[email protected]> wrote in message
news:[email protected] om...
> Are *clock rate* and *sample rate* the same thing?

They can be in certain contexts, but in general no. It depends on what
you're clocking (CPU clock, frame sync, bit clock, etc.)! There will
probably be a clock somewhere equal to your sampling rate or some multiple
of it.

If you give the full context maybe you can get a better answer.

Brad

"Curious" <[email protected]> wrote in message
news:[email protected] om...
> Are *clock rate* and *sample rate* the same thing?

A telephony appliance, for example, can have over 8 different asynchronous
sampling domains with their own clocks plus a couple of internal clock
domains for the processors...

Stephen

"Brad Griffis" <[email protected]> wrote in message news:<QqAUc.1245$[email protected] m>...

> If you give the full context maybe you can get a better answer.

I get the following picture of analogy:

1. Sample rate in PCM audio = Clock rate in term of CPU

2. Bit-resolution in PCM audio = bits per clock cycle of CPU

These are analogies. Think of the sample rate as the RPM of a car and
the bit-resolution as the gear #. More bit-resolution = higher gear.
More sample rate = more rpm. This is how I get my analogy.

Make sense?

Curious wrote:
> "Brad Griffis" <[email protected]> wrote in message news:<QqAUc.1245$[email protected] m>...
>
>
>>If you give the full context maybe you can get a better answer.
>
>
> I get the following picture of analogy:
>
> 1. Sample rate in PCM audio = Clock rate in term of CPU
>
> 2. Bit-resolution in PCM audio = bits per clock cycle of CPU
>
> These are analogies. Think of the sample rate as the RPM of a car and
> the bit-resolution as the gear #. More bit-resolution = higher gear.
> More sample rate = more rpm. This is how I get my analogy.
>
> Make sense?

Not to me. Maybe you can explain. (Maybe your thinking it makes sense
explains some of your other proposals.)

Jerry
--
.... the worst possible design that just meets the specification - almost
a definition of practical engineering. .. Chris Bore
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