Digital Inputs - RME Audio ADI-8 DS User Manual

6.3 Digital Inputs

The ADI-8 DS provides two digital inputs, both in ADAT optical and TDIF-1 format. In normal
operation only the MAIN inputs are used. When using more than the first 4 channels at acti-
vated COMBINE BS (Bit Split) or DS (Double Speed), the AUX inputs also have to be used.
The key DIGITAL INPUT sets the desired input active.
The ADAT optical inputs of the ADI-8 DS are fully compatible with all ADAT optical outputs.
RME's unsurpassed Bitclock PLL prevents clicks and drop outs even in extreme varipitch op-
eration, and guarantees a fast and low jitter lock to the digital input signal. A usual TOSLINK
cable is sufficient for connection.
ADAT Main
Interface for the first or only device sending an ADAT signal to the ADI-8 DS. Carries the chan-
nels 1 to 8. When receiving a Bit Split or Double Speed signal, this input carries the channels 1
to 4.
ADAT AUX
Only necessary in COMBINE and DS mode. Interface for the second device sending a Bit Split
or Sample Split signal to the ADI-8 DS. Carries the channels 5 to 8.
The TDIF-1 connectors of the ADI-8 DS are fully compatible with all devices offering such an
interface, for example DA-38 and DA-88. A low jitter PLL ensures best playback sound quality
and reliable operation. RME's exclusive SyncCheck verifies synchronous operation when using
both TDIF ports. The connection is done through a special TDIF cable, available at your local
dealer (Tascam part number PW-88D).
TDIF Main
Interface for the first or only device with a TDIF-1 interface. Carries the channels 1 to 8. When
transmitting a Bit Split or Double Speed signal, this port carries the channels 1 to 4.
TDIF AUX
Copy of the data at the MAIN interface. Carries the channels 5 to 8 in Bit Split or Double Speed
mode.
General hints on TDIF operation
TDIF and word clock
When the ADI-8 DS is slave no additional word clock connection is necessary. In case DA88
and/or DA38 are slave the word clock output of the ADI-8 DS has to be connected to the word
clock input of the first (master) recorder. When using more than one recorder a special sync
cable (Tascam part number PW-88S) is needed.
Emphasis
The TDIF interface and the DA-converters of the ADI-8 DS support Emphasis. Please note that
an Emphasis indication will not be stored or processed on the sound when doing digital trans-
fers between TDIF and ADAT, because the ADAT standard does not include Emphasis.
User's Guide ADI-8 DS © RME
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