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RME Audio ADI-192 DD User manual

Manual is about: Hi-Precision 24 Bit / 192 kHz 8-Channel Triple Universal Format Converter 8-Channel Sample Rate Converter ADAT® optical - TDIF™ - AES/EBU Interface

Summary of ADI-192 DD

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    User's guide adi-192 dd syncalign ™ synccheck ™ intelligent clock control ™ hi-precision 24 bit / 192 khz 8-channel triple universal format converter 8-channel sample rate converter adat ® optical - tdif ™ - aes/ebu interface steadyclock ™ tdif-1 24 bit interface.

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    2 user's guide adi-192 dd © rme general 1 introduction ...............................................................6 2 package contents .....................................................6 3 brief description and characteristics.....................6 4 first usage - quick start 4.1 controls and...

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    User's guide adi-192 dd © rme 3 important safety instructions attention! Do not open chassis – risk of electric shock the unit has non-isolated live parts inside. No user serviceable parts inside. Refer service to qualified service personnel. Mains • the device must be earthed – never use it without...

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    4 user's guide adi-192 dd © rme.

  • Page 5: User'S Guide

    User's guide adi-192 dd © rme 5 user's guide adi-192 dd general.

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    6 user's guide adi-192 dd © rme 1. Introduction with the adi-192 dd you have an incredibly versatile digital interface to your supply. The suc- cessor of the highly successful adi-8 dd is a completely re-engineered device, designed to be the most powerful format and sample rate converter ever. What ...

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    User's guide adi-192 dd © rme 7 4. First usage – quick start 4.1 controls and connectors the front of the adi-192 dd features nine buttons and 48 leds, providing all necessary means for a detailed configuration of the unit, plus an optical spdif i/o with toslink connectors. Input monitor indicates a...

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    8 user's guide adi-192 dd © rme 4.2 quick start in the input monitor section 19 leds provide detailed information about the status of the digital input signals. Displayed are lock (flashing) and sync (constantly lit), the frequency range (double or quad speed), a possible s/mux indication on the ada...

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    User's guide adi-192 dd © rme 9 4.3 the dd plain and simple the user interface of the adi-192 dd is characterized by a clearly structured architecture and an unambiguous labelling of the front and rear sides. Numerous leds show the state of the device and of all incoming and outgoing signals in a st...

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    10 user's guide adi-192 dd © rme 5. Warranty each individual adi-192 dd undergoes comprehensive quality control and a complete test at imm before shipping. . The usage of high grade components should guarantee a long and trou- ble-free operation of the unit. If you suspect that your product is fault...

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    User's guide adi-192 dd © rme 11 ce / fcc compliance ce this device has been tested and found to comply with the limits of the european council direc- tive on the approximation of the laws of the member states relating to electromagnetic compati- bility according to rl2004/108/eg, and european low v...

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    12 user's guide adi-192 dd © rme.

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    User's guide adi-192 dd © rme 13 user's guide adi-192 dd usage and operation.

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    14 user's guide adi-192 dd © rme 5. Front panel controls 5.1 input monitor the status of the inputs is displayed by 19 leds. The section input monitor helps to avoid errors caused by wrong, missing or not correctly connected inputs, and makes handling the digital formats much easier. General each in...

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    User's guide adi-192 dd © rme 15 the function range tells the src which frequency its input signal has. The frequency of its output signal (the frequency the input signal shall be converted to) is defined in the clock section. More information is found in chapter 8, sample rate converter. 5.3 clock ...

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    16 user's guide adi-192 dd © rme activation of follow clock: while the firmware version is shown press the clock state but- ton. Both leds ds/qs light up. Deactivation: same, both leds stay dark. 5.4 aes output the input signal of the aes outputs is selected in the output section. With no led lit (n...

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    User's guide adi-192 dd © rme 17 6. Inputs 6.1 aes/ebu at the rear side of the adi-192 dd there are four xlr sockets for the aes/ebu inputs. Every input is transformer-balanced and ground-free. Channel status and copy protection are being ignored. Thanks to a highly sensitive input stage, also spdif...

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    18 user's guide adi-192 dd © rme 6.2 tdif the adi-192 dd has two tdif-1 ports. In standard operation only the port labelled main is used. Higher sample rates than 48 khz are realized by sample multiplexing. When using more than four channels at double speed or two channels at quad speed, the port la...

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    User's guide adi-192 dd © rme 19 6.3 adat optical the adi-192 dd has two adat optical inputs. In standard operation only the port labelled main is used. Higher sample rates than 48 khz are realized by sample multiplexing. When using more than four channels at double speed or two channels at quad spe...

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    20 user's guide adi-192 dd © rme 7. Outputs 7.1 aes/ebu at the rear side of the adi-192 dd there are four xlr sockets as aes/ebu outputs. Each out- put is transformer-balanced, ground-free and compatible to all devices with aes/ebu ports. Connection is accomplished using balanced cables with xlr plu...

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    User's guide adi-192 dd © rme 21 the outputs of the adi-192 dd support all currently known formats in the range of 32 khz up to 192 khz. The current output format is defined by the button state in the aes output sec- tion: • single wire (no led): 8 channels 32 khz – 192 khz. 2 channels per aes wire....

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    22 user's guide adi-192 dd © rme 7.3 adat optical the adi-192 dd provides two digital outputs in adat optical format. In standard operation only the port labelled main is used. The port aux is operated synchronously, but does not provide any audio data (empty frame). Higher sample rates than 48 khz ...

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    User's guide adi-192 dd © rme 23 8. The sample rate converter 8.1 general the adi-192 dd includes an eight-channel sample rate converter (src). Its technical specifica- tions indicate an exceptional conversion quality, formerly known only from synchronous src devices. The adi-192 dd's src is asynchr...

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    24 user's guide adi-192 dd © rme in many input formats, the input signal's effective sample rate stays unclear because of possible sample multiplexing. Therefore the frequency range has to be defined manually via the range button: no led (single speed): the effective sample frequency is in the range...

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    User's guide adi-192 dd © rme 25 tdif after a hifs addition to the tdif-1 specification, and the introduction of tascam's da98hr, the tdif format officially supports up to 192 khz. Even before that, the double wire and quad wire methods could be used for the same purpose. In fact double wire is iden...

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    26 user's guide adi-192 dd © rme 9. Word clock 9.1 word clock input and output input the transformer isolated word clock input of the adi-192 dd is active when wck has been selected in the clock section. The signal at the bnc input can be single, double or quad speed, the adi-192 dd automatically ad...

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    User's guide adi-192 dd © rme 27 9.2 technical description and background in the analog domain one can connect any device to another device, synchronisation is not necessary. Digital audio is different. It uses a clock, the sample frequency. The signal can only be processed and transmitted when all ...

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    28 user's guide adi-192 dd © rme the tdif format is especially critical with respect to word clock. We have mentioned this in different places of this manual: when the adi-192 dd is slave no additional word clock connection is necessary. In case da88 and/or da38 are slave the word clock output tdif ...

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    User's guide adi-192 dd © rme 29 user's guide adi-192 dd technical reference.

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    30 user's guide adi-192 dd © rme 10. Technical specifications 10.1 inputs aes/ebu • 4 x xlr, transformer balanced, ground-free, according to aes3-1992 • high-sensitivity input stage ( • spdif compatible (iec 60958) • accepts consumer and professional format, copy protection will be ignored • single ...

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    User's guide adi-192 dd © rme 31 10.2 outputs aes/ebu • 4 x xlr, transformer balanced, ground-free, according to aes3-1992 • output voltage professional 4.5 vpp, consumer 2.1 vpp • format professional according to aes3-1992 amendment 4 • format consumer (spdif) according to iec 60958 • single wire: ...

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    32 user's guide adi-192 dd © rme 10.4 sample rate converter • self adjusting, high order aliasing filter (-144 db) • resolution: 24 bit • dynamic range: 140 db rms unweighted, 143 dba • distortion (thd+n): -140 db • i/o ratio > 1:7 / 7:1 • input / output sample rate range: 28 khz - 204 khz • support...

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    User's guide adi-192 dd © rme 33 10.7 firmware the adi-192 dd's main part has been realized using programmable logic. By exchanging a little component called eprom, both function and behaviour of the unit can be changed at any time. At the time of writing this manual, the unit is shipped with firmwa...

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    34 user's guide adi-192 dd © rme 11. Technical background 11.1 terminology single speed sample rate range originally used in digital audio. Typical applications are 32 khz (digital radio broadcast), 44.1 khz (cd), and 48 khz (dat). Double speed doubles the original sample rate range, in order to ach...

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    User's guide adi-192 dd © rme 35 11.2 lock, synccheck and syncalign digital signals consist of a carrier and the data. If a digital signal is applied to an input, the re- ceiver has to synchronize to the carrier clock in order to read the data correctly. To achieve this, the receiver uses a pll (pha...

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    36 user's guide adi-192 dd © rme 11.3 ds - double speed when activating the double speed mode the adi-192 dd operates at double sample rate. The internal clock 44.1 khz turns to 88.2 khz, 48 khz to 96 khz. The internal resolution is still 24 bit. Sample rates above 48 khz were not always taken for g...

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    User's guide adi-192 dd © rme 37 in qs operation, the adi-192 dd spreads two channel's data on all 8 channels of an adat and tdif port according to the following table: original 1 2 3 4 ds signal port 1/2 main 3/4 main 5/6 main 7/8 main 1/2 aux 3/4 aux 5/6 aux 7/8 aux as the transmission of quad rat...

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    38 user's guide adi-192 dd © rme 11.6 group delay – i/o latency every digital device has a specific delay time between input and output. The so called group delay of 3 samples for basic applications using the adi-192 dd is quite low. However, the sam- ple rate converter operates with digital filters...

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    User's guide adi-192 dd © rme 39 11.7 steadyclock the steadyclock technology of the adi-192 dd guarantees an excellent performance in all clock modes. Its highly efficient jitter suppression refreshes and cleans up any clock signal, and provides it as reference clock at the word clock output. Usuall...

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    40 user's guide adi-192 dd © rme 12. Block diagram.