User manual

8X96 ADC and DAC User Manual Page 37 of 54
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TDIF Interface (with MRX ™ and S/MUX ™)
TDIF MDM interface is equipped with two TDIF ports, A an B which allow to operate
with either one or two Tascam MDM machines or interface to other Tascam equipment
for up to 8 channels of I/O and signals up to 24/96. When Tascam MDM machines are
used with the 8X96ADC, the ADC wordclock output has to be fed to the machine
wordclock input and the machine has to be set to accept external wordclock and TDIF
digital input. In case of 24 bit machines (DA78HR and DA98HR) please make sure the
input wordlenght is set to 24 bit and dither is off.
No wordclock is required to interface the 8X96 DAC.
The diagrams below illustrate most popular system applications. We recommend one
tailored to your equipment and needs. Because of sample accurate operation of Tascam
MDMs several 8X96 units can be stacked to increase number of channels. In this case the
first ADC is usually the clock master while the rest are clock slaves.
Detailed description of dip-switch functions can be found in chapter “dip-switch
settings”). Not all possible setup configurations are mentioned (such as e.g. 16 bit/96 k)
48 or 96 numbers are used as an abbreviation. They mean 44.1 kHz and 48 kHz OR 88.2
kHz and 96 kHz sampling frequency.
MRX™ encoding used in some the examples is licensed from Prism and is fully
compatible, i.e. can be decoded by Prism MR 2024T bit splitting interface.
Users of newer 24 bit Tascam MDMs, Tascam MX2424 harddisk recorder and certain
TDIF equipped cards (SEKD) can take advantage of 24/96 capability of Mytek TDIF
interface which is achieved by employing sample splitting technique known as Sonorus
S/MUX (tm), Prism Sound Split96 (tm) where one high speed 96k channel is split
between 2 48k channels (tracks). This technique is compatible with dual wire AES and
recording technique used in Tascam DA98HR. I other words 96k tapes recorded on
DA78HR using Mytek 8X96 can be played back on DA98HR without the need for any
decoder.