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The TDIF interface
1.
If a TDIF interface is mounted in the ADDA 2408 you can connect this interface on the ADDA 2408 to
a digital device with TDIF interface. There are 3 different configurations of the TDIF interface: TDIF 1,
TDIF 96 and TDIF DS. In the system menu (I/O options) on the front panel (LCD display 7 & 8) you
can chose which TDIF format you will use.
2.
At 44.1 and 48 kHz there are no differences between the formats. At these sample rates you must
connect the TDIF to the left TDIF connector on the ADDA 2408 TDIF interface.
3.
At 88.1 and 96 kHz the options are as follows: TDIF 1: The left connector is carrying channels 1-4
I/O, the right connector is carrying channels 5-8 I/O. This gives you the opportunity to use two
TASCAM 8 track 48 kHz recorders in order to record 8 channels at 96 kHz. The interface does not
carry sample rate information, so you must chose the right sample-rate at both the converter and the
TDIF machine. Some old TDIF machines need Word Clock in order to run on ext. sync. Connect the
WC out on the back panel of the ADDA 2408 to the WC in on the TASCAM recorder, set the ADDA
2408 to internal sync and set the TASCAM machine to WC sync.
4.
TDIF 96: This is the new TASCAM dual wire 96 kHz format. The left connector carries channels 1-4
I/O, the right connector carries 5-8 I/O. The emphasis bits in the signal are used to send sample rate
information. Use only this format if you have a new TASCAM device like the MX 2424 which can work
with TDIF 96. It is not necessary to connect word clock, although it is highly recommended, in order
to avoid jitter.
5.
TDIF DS: This format is for SoundScape Red systems exclusively. It is a single wire format at 96
kHz. Connect the Left TDIF connector on the ADDA 2408 to your SoundScape Red system. Set the
SoundScape system to digital input sync and the ADDA 2408 to internal sync. If you have more than
one ADDA 2408, you can use one as the master and synchronize the rest via Word Clock in/out on
the back panel of the ADDA 2408’s.
