AMC1303E2510: About Chopper Frequency

toshi-e2e

Genius 4850 points

Part Number: AMC1303E2510

Tool/software:

Hi, all,

The following is in the Revision History when the data sheet was changed from Rev. C to Rev. D:

　　"Changed chopper frequency from fCLK / 32 to fixed 625kHz"

Looking at the PCN history, it seems there was no change in the design, so is this a correction of a typo?

Thanks in advance.
Regards,

Toshi

8 months ago

+1 Alexander Smith 8 months ago

TI__Guru 56172 points

Hi Toshi-san,

Yes I believe so since the AMC1303 is an internal clock, there is no variation.

0 Hiroaki Yuyama TED 8 months ago in reply to Alexander Smith

Expert 1740 points

Hi,Alexander-san,

Thank you for your reply.
I'm a FAE at Dinsty, the same team as Toshi-san.
I understand that even if the internal CLK is 10MHz or 20MHz, the chopper frequency is fixed at 625kHz, not fclk/32, and is the same.

Has the chopper frequency been fixed at 625kHz since the AMC1303 was first released, even in models with an internal Clk of 10MHz or 20MHz?

Thank you and best regards
Hiroaki Yuyama

0 Alexander Smith 7 months ago in reply to Hiroaki Yuyama TED

TI__Guru 56172 points

Hi Yuyama-san,

Yes, this is correct.

0 Hiroaki Yuyama TED 7 months ago in reply to Alexander Smith

Expert 1740 points

Hi,Alex-san,

Thank you for your reply.
I understand that the chopper frequency of both AMC1303Mxx10 and AMC1303Mxx20 was 625KHz from the first release.

best regards,
Hiroaki Yuyama

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AMC1303E2510: About Chopper Frequency