TPA2001D1 / to adjust COSC and ROSC

K.Yaita

Guru 29710 points

Other Parts Discussed in Thread: TPA2001D1, TPA2005D1

Hi Team,

Is there calculating formula to adjust COSC or ROSC from oscillation frequency?

TPA2001D1EVM seems to adopt COSC=220pF/ROSC=120kΩ, so I'd also like to know the value of oscillation frequency of EVM.

Best regards,

Yaita / Japan disty

0 Don Dapkus over 10 years ago

Hi, Yaita-san,

This is a very old device. I suggest you look at one of our newer devices.

But, to answer your question, the IC has been optimized to use the recommended values in the d/s, and we do not recommend changing from these values.

-d2

0 K.Yaita over 10 years ago in reply to Don Dapkus

Guru 29710 points

Hi Don-san,

Thank you for your reply.

I understood COSC=220pF/ROSC=120kΩ is recommended.

Could you give me the value of oscillation frequency of this setting?

My customer would like to know the value.

Best Regards,

Yaita

0 Don Dapkus over 10 years ago in reply to K.Yaita

Hi, Yaita-san,

With the recommended components, the nominal oscillation frequency is 250 kHz.

This is a very old device, and we have newer, better options. Is there some particular reason that you selected this device?

-d2

0 K.Yaita over 10 years ago in reply to Don Dapkus

Guru 29710 points

Hi Don-san,

Thank you for your support.

TPA2001D1 is my customer's choice and he thinks this device is cost effective.

I heard he also consider TPA2005D1 at the same socket.

Best Regards,

Yaita

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