DS125BR800A: About DS125BR800A and DS125BR802...

Peter Tseng

Part Number: DS125BR800A
Other Parts Discussed in Thread: DS125BR820

Dear Sirs,

As datasheet, the DS125BR800A state the TX De-emphasis up to -12dB, did that mean the Max. capability to recover loss is 12dB?

And how many dB of TX De-emphasis for DS125BR820 since I cannot find it in the datasheet.

Thanks.

over 2 years ago

+1 Nasser Mohammadi over 2 years ago

TI__Guru* 88905 points

Hi Peter,

DS125BR820 is a linear device and does not have de-emphasis capability. Since BR820 is a linear device, it means de-emphasis on its input would get transferred to its output - device is acting like wire and provides mainly high frequency gain. It is best to use BR820 IBIS-AMI file to make sure it meets your application requirements. Please send me a friend request along with your email so we can provide you with BR820 model.

Regards ,,, Nasser

0 Peter Tseng over 2 years ago in reply to Nasser Mohammadi

Genius 5555 points

Hi Sir,

Since BR820 did not have De-emphasis capability, did you have any idea about the loss of its TX if customer is not able to do simulation?

Thanks.

+1 Nasser Mohammadi over 2 years ago in reply to Peter Tseng

TI__Guru* 88905 points

Hi Peter,

Customer can enable de-emphasis on device driving input of the BR820. If this is not available, then he/she can use BR800A with de-emphasis capability.

Regards,, Nasser

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DS125BR800A: About DS125BR800A and DS125BR802...