About frequency characteristic of PCM3070 and AIC3256

Hello, Hirata-san,

I will take a look at this and I will answer as soon as possible.

Best regards,
Luis Fernando Rodríguez S.

Hi, Rodriguez-san,

Thank you for your relay.
How about your current situation?
(I'm sorry to hastened.)

Best regards,
Y. Hirata

Hi, Hirata-san,

I'm still working on this. I will send you the frequency characteristics tomorrow morning (CDT).

I apologize for the late response.

Best regards,
Luis Fernando Rodríguez S.

Hi, Rodriguez-san,

I'm sorry to hastened.
Thank you for your support and reply about your situation.

Best Regards,

Y. Hirata

Hi, Hirata-san,

Both devices (PCM3070 & AIC3256) have a similar behavior at the headphone output. Please see the following frequency responses:

• THD + N vs frequency. 192kHz sampling rate. 16ohm load.

• THD + N vs frequency. 192kHz sampling rate. 32ohm load.

The SNR value would be -83dB for both cases.

Please let me know if you have more questions or comments.

Best regards,
Luis Fernando Rodríguez S.

Hello Luis-san,

Thank you for your reply and data.

I have an additional question on behalf of Hirata-san.

Our customer need  the frequency response characteristics over 20kHz , because he are considering the product of Hi-resolution(24bit 96kHz,192kHz etc.) support.

However your  data was up to 20kHz.

So could you please let me know about frequency response from 20Hz to over 20kHz.

Best Regards,

Y.Hasebe

Hello, Hasebe-san,

Our audio codec devices are designed to filter the frequencies out of the audible band.

So, do you have a specific range for this frequency response (20Hz to xx)?

Best regards,
Luis Fernando Rodríguez S.