• From: Oakland, California
  • Registered: 2021-06-21
  • Posts: 50

Topic: HDSPe MADI - SteadyClock FS?

The title page and pages 8 and 78 of the current version of the manual for the HDSPe MADI state that the card implements SteadyClock FS. Was the hardware or firmware updated to support this enhanced version of SteadyClock or is this just a typo?

https://www.rme-audio.de/downloads/hdspemadi_e.pdf

2 Reply by MC

  • MC
  • MC
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  • From: Germany/Thailand
  • Registered: 2007-04-06
  • Posts: 24,869

Re: HDSPe MADI - SteadyClock FS?

All updated products have SteadyClock FS now. This is a (small but) hardware change so not available for older hardware.

Regards
Matthias Carstens
RME

MC's Website

  • From: Stuttgart, Germany
  • Registered: 2009-02-15
  • Posts: 3

Re: HDSPe MADI - SteadyClock FS?

MC wrote:

All updated products have SteadyClock FS now. This is a (small but) hardware change so not available for older hardware.

It seems to me that there is an evolution of Steady Clock FS, getting even better:

Digiface USB: Jitterunterdrückung bei externer Clock: > 30 dB (2,4 kHz)
HDSPe Madi: Jitterunterdrückung: > 50 dB (2,4 kHz)
Digiface AES: Jitterunterdrückung bei externer Clock: > 50 dB (> 1 Hz) !!

Additionally the Digiface AES Manual (Page 97) states:
"The further improved Steady-Clock FS technology attenuates
even lowest frequency jitter (>1Hz), and provides an even
higher jitter suppression at lowest self-jitter."

A impressing picture shows that a 400ns-jitter input signal ist attenuated to
210ps at 50Hz, i.e. -65dB.

Excellent and new, or not?

All the best,
Otto