PCM5100A-Q1: How to change frequency

Shinichi Matsuzaki

Prodigy 10 points

Part Number: PCM5100A-Q1
Other Parts Discussed in Thread: PCM5100

Tell me how to change audio frequency from original data.

e.g.

(Original data)

A.wav 24KHz sampling 16bit stereo data 6KHz sine wave

(Expected audio output)

6.1KHz sine wave

6.2KHz sine wave

.....

7.0KHz sine wave

9 months ago

0 Arash Loloee 9 months ago

TI__Mastermind 21120 points

The Audio source is where you have to tune in or type in the desired input frequency and that depends on your source generator you are using -if this is what you are asking. I use AP or Audacity and I type in the exact frequency I want. You have to change the input frequency in your source generator.

Regards,

Arash

0 Shinichi Matsuzaki 9 months ago in reply to Arash Loloee

Prodigy 10 points

Your suggestion won't work because I have to solve the issue under the embedded condition(limited memory, CPU power). What is more, the target frequency shift vary based on the environment like temperature. Please tell me the solution using PCM1500A function.

0 Arash Loloee 9 months ago in reply to Shinichi Matsuzaki

TI__Mastermind 21120 points

PCM5100 or any DAC you pick, converts digital signal to analog signal and reconstructs the input amplitude and frequency ( within a margin of error that datasheet may have mentioned) . As far as I know, in PCM5100 we have no control to adjust the reconstructed input signal frequency.

+1 Shinichi Matsuzaki 9 months ago in reply to Arash Loloee

Prodigy 10 points

I understood PCM5100 can't change output frequency itself.

0 Arash Loloee 9 months ago in reply to Shinichi Matsuzaki

TI__Mastermind 21120 points

Thanks, I am closing this thread now.

Regards,

Arash

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PCM5100A-Q1: How to change frequency