Specifications
ADI-648
64-Channel 192 kHz ADAT
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MADI converter with 16 x 16 matrix router
Connectivity
1 x MADI I/O (optical and coaxial)
8 x ADAT I/O (TOSLINK), 4 ch. @ 96 kHz (S/MUX), 2 ch. @ 192 kHz (S/MUX4) each
MIDI I/O (5-pin DIN)
Word Clock I/O (BNC)
Technologies
MADI Multinorm
MADI Quad Wire
MADI Redundancy
ADAT S/MUX and S/MUX4
MIDI Remote
MIDI over MADI
Intelligent Clock Control
SteadyClock
TM
SyncCheck
TM
SyncAlign®
Cascadable
T
he ADI-648 offers format conversion from MADI to ADAT and vice versa. All 64 MADI I/O-channels can
be converted to 8 ADAT optical TOSLINK inputs and outputs respectively. In addition, the ADI-648
features an easily configurable 8-channel based 16 x 16 Matrix Router. Any of the outputs, which are
divided into 8-channel blocks, can be fed from any 8-channel input block, both on the ADAT and the MADI
side.
The ADI-648 not only accepts 56-channel, 64-channel and 96k frame formats, it is also capable of generating
and supplying those formats. That way the ADI-648 makes an ideal MADI front-end for ADAT devices.
Interconnecting ADAT equipped computers or mixers will be more comfortable and powerful by bypassing
limitations of the short cable-lengths offered by the ADAT-optical standard.
But it doesn’t stop at free routing within the MADI-ADAT and ADAT-MADI conversion. Splitting and routing is
also possible within the same format. An 8-channel input block can also be mirrored to any number of output
blocks in parallel.
Multiple ADI-648 devices can be cascaded and synchronized with sample accuracy via Word Clock.
The ADI-648 generates Word Clock in Single or Double Speed and is capable of working with double MADI
rate (96k frame). 96 kHz and 192 kHz sample rate are supported in Double Wire (S/MUX)/Quad Wire (S/MUX4)
mode, both, for MADI and ADAT I/O. The Varipitch option is controlled by input signal or Word Clock.
The ADI-648 is fully MIDI remote controllable via the built-in MIDI connectors and MIDI over MADI.
The device status, controls and front panel LEDs can be scanned and controlled via MIDI. Each ADI-648 can be
given its own ID, providing independent remote control of multiple devices via a single MIDI channel. RME´s
MIDI Remote control software for Mac and PC may use any existing MIDI port within the computer to perform
remote control and status requests for all ADI-648s.
MIDI over MADI allows for 16 MIDI channels to be carried along with the MADI data packages, not interfering
any of the 64 audio channels.
The ADI-648 supports SyncAlign® and SyncCheck® – known and proven technologies utilized in other RME
products, allowing for perfect sync between all channels and easy detection of error states.
All settings are retained when the unit is powered off. Due to SteadyClock and its high jitter suppression, the
reference clock can also be extracted from the MADI signal itself. No need for additional Word Clock or AES
clock lines.
In case of errors, the Safe Mode Input function will switch the MADI input automatically, ensuring redundancy
between optical and coaxial inputs.
▪ Sample rates: 44.1, 48, 88.2, 96 kHz, variable (Sync/Word Clock)
▪ Frame rate MADI: 48 and 96 kHz (for 88.2 and 96 kHz sample rate)
▪ Input Word Clock: Signal Adaptation Circuit (functional from 1.2
Vpp input signal), switchable termination
▪ Output Word Clock: low-impedance driver stage, 4 Vpp into 75
Ohm, short-circuit-proof
▪ Sync sources: MADI, ADAT optical, Word Clock, internal
▪ Varipitch: controlled by input or Word Clock
▪ Sample rate range:
MADI: 32 - 96 kHz, Word Clock: 27 - 105 kHz, ADAT: 33 - 57 kHz
▪ Jitter: Internal clock < 1 ns, word clock In < 2 ns, ADAT In < 2 ns
▪ Jitter suppression with external clock: > 30 dB (2.4 kHz)
▪ Jitter sensitivity: flawless PLL operation even at 100 ns Jitter
▪ Power Supply: Internal switching power supply,
100 V - 240 V AC, 15 Watt
▪ Dimensions (WxHxD): 483 x 44 x 200 mm
Specifications
18 Digital Converters 19ADI-648
PREMIUM LINE
With its 16 ADAT
ports the ADI-648
performs a full
integration of
the most popular
interface standard
into the MADI world,
with just a single
device.
▪ MADI-ADAT breakout box for all RME analog/digital front-end units
▪ MADI-ADAT breakout box for other devices with MADI interface
▪ Connecting MADI-based equipment to RME’s Hammerfall series
▪ ADAT optical patchbay and router
▪ MADI coaxial / optical or vice versa converter and splitter
▪ MADI redistributor, patchbay, router
Application examples