PCB1802 input impedance value

Takumi Suzuki1

Mastermind 8610 points

Other Parts Discussed in Thread: PCM1802

Hi,

I would like to ask you the specification of input impedance of PCM1802 as below.

1) Data sheet describes that the input impedance is 20Kohm(TYP).

Could you tell me the min-max value of the impedance? Effective value is welcome.

2) The difference of between "lots"

Are there any difference value between product "lots"?

Or the value is almost same as 20K?? (there is not so big difference between lots?)

Thank you very much in advance.

Best Regards,

over 10 years ago

0 Justin Bohr over 10 years ago

TI__Mastermind 27990 points

Hi Takumi,

I'm sorry but i do not have the data for min max measurements, only that we designed for the input impedance to be 20 Kohm. There should be little difference between lots.

Justin

0 Takumi Suzuki1 over 10 years ago in reply to Justin Bohr

Mastermind 8610 points

Hi Justin-san,

Thank you for your reply.

I see, understood.

As you designed 20Kohm, could you tell me the tolerance you can estimate?

Can I think it's around +/-10%? (18K - 22K?)

Of course, it's OK just estimation.

Regards,

Audio

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PCB1802 input impedance value