Re: [10GBASE-CX4] Re: Terminology
Hello all,
Thanks for your patience.
From the December Meeting...
Pre-emphasis 21,Pre-distortion 5, TX Equalization 8
I just knew we had addressed this before. On to newer and
better things....
Regards,
Dan
>OK.
>
>Larry
>
>"DOVE,DANIEL J (HP-Roseville,ex1)" wrote:
>
>> Hello all,
>>
>> I am getting dizzy!
>>
>> Rather than go through this loop again, I will take the
>> chair's perogative to request that we halt the discussion
>> until I can find the appropriate decision in our minutes
>> and remind everyone what it was. OK?
>>
>> Thanks,
>>
>> Dan
>>
>> -----Original Message-----
>> From: Oleynick, Gary [mailto:GOleynick@fciconnect.com]
>> Sent: Wednesday, February 05, 2003 9:50 AM
>> To: 'larry rennie'; Howard A. Baumer
>> Cc: Zev Roth; 10GBASE-CX4 (E-mail); Oleynick, Gary
>> Subject: RE: [10GBASE-CX4] Re: Terminology
>>
>> All,
>>
>> I thought adjustments at the Rx end were referred to as "adaptive or
active
>> equalization" and not pre/de-emphasis?
>>
>> Regards,
>>
>> Gary
>>
>> -----Original Message-----
>> From: larry rennie [mailto:Larry.Rennie@nsc.com]
>> Sent: Wednesday, February 05, 2003 9:17 AM
>> To: Howard A. Baumer
>> Cc: Zev Roth; 10GBASE-CX4 (E-mail)
>> Subject: [10GBASE-CX4] Re: Terminology
>>
>> Thanks for the reply Howard. I just wanted to make sure that in our
>> definition that neither term implied that it is a function of the TX or
RX
>> exclusively, i.e., you can have pre-empahsis or de-emphasis at the TX or
RX
>> end.
>>
>> Regards,
>>
>> Larry
>>
>> "Howard A. Baumer" wrote:
>>
>> > Larry,
>> > I thought at one point along the way we desided to call it
>> > de-emphasis. I know this hasn't caught on that well as even us here
at
>> > Broadcom call it pre-emphasis at times. I don't think this
nomenclature
>> > is that big of a deal. The more important definition is how the
>> > emphasis is computed and then communicated to the group. On this
point
>> > the group desided to always speak in terms of (1-Vlow/Vhigh), where
Vlow
>> > is the low value of the step response and Vhigh is the value of the
>> > peak.
>> >
>> > Howard
>> >
>> > larry rennie wrote:
>> >
>> > > Howard and Zev,
>> > >
>> > > In looking at some Dec 2002 presentations, I notice that the 2-tap
>> > > filter Broadcom calls a tx "de-emphasis" filter is called a tx
>> > > "pre-empahsis" filter by Mysticom (slide 5 of
>> > > MysticomCX4_Dec0602:6.pdf). What is the terminology we have decided
>> > > upon?
>> > >
>> > > Regards,
>> > >
>> > > Larry
>
>
>