MADI2 I/O Option

 
The Mykerinos MADI Daughter board is the solution for high I/O channel count applications.
It offers 56 channels of 24 bit bi-directional I/O and up to 64 channels in MADI-X (MADI Extended) format. It can be ordered either in a BNC based coaxial version or an optical duplex SC version. Both versions are fitted with a standard Wordclock BNC I/O connector, which can be software programmed as a Wordclock In or Out signal.

Coaxial Version

Optical Version

(click to enlarge picture)

 SPECIFICATIONS

 
Coaxial

• Maximum cable length: 50 [m]
   

• Power consumption: 2.5 [W]
   

• ECL logic used for the transmission

Optical

• Maximum optical fiber length: 500 [m]
   
• Power consumption: 2.5 [W]
   
• Optical SC type connector
   
• Compliant with the Optical Performance Requirement of the FDDI (LCF) PMD Standard

 

General Specifications

• Up to 64 bi-directional channels
  

• Resolution of 24 bits/sample 
  

• Up to 384 kHz sampling rate as well as DSD 2.8 MHz
  

• Fully compliant MADI (AES 10-1991)

• High Sampling Rates formats can be software configured to operate in either "Legacy Framing" or "High Speed Framing" compliant to Draft AES10-xxxx Revised 2001 recommendations
  

• Wordclock IN, Audio IN or Internal synchronization available
  

• Link transmission rate: 125 [Mb/s]
  

• NRZI transmission format
  

• 4 bit to 5 bit encoding format

• Compatibility with the HDTDM/XDTDM Bus in order to connect it to other Mykerinos boards. 

For optimal performance and long term availability, Merging decided to develop it's own MADI receiver/transmitter FPGA (Field Programmable Gate Array). This chip allows two modes of operation, which can be selected through software control: one which provides up to 56 channels of I/O channels as per the original MADI specifications (Standard AES 10-1991) and one where up to 64 channels of I/O are supported up to 48 kHz. The MADI option can be run at any standard sampling rate as well as x2 sampling rates such as 96 kHz and even x4 sampling rates such as 192 kHz and beyond. Just divide the maximum number of I/O channels available by 2, 4 or 8 for the High Sampling rates as per the table below.

 CONNECTIONS

 
Coaxial

 
Optical