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SN75LVPE802: De-emphasis function

Part Number: SN75LVPE802
Other Parts Discussed in Thread: DS80PCI102,

Hi team,

When the DE1 and DE2 set to 0, the datasheet says the De-emphasis level is 0dB. Does it means the device doesn't apply de-emphasis to input signal?

So, if the signal with -6dB de-emphasis inputs, I can measure the output signal that is -6dB de-emphasis signal. Is that right?

The reason why I ask you is when customer uses DS80PCI102  and set DE-emphasi to 0dB, 0dB De-emphasis signal is measured on output even though input signal is applied -3.5dB De-emphasis.

Regards,

Saito