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RME Audio ADI-8 DS User Manual

Other manuals for ADI-8 DS: User manual

Summary of ADI-8 DS

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    User’s guide adi-8 ds mk iii a true industry standard syncalign ™ synccheck ™ steadyclock ™ hi-precision 24 bit / 192 khz reference low latency conversion 8-channel analog aes / adat interface 24 bit / 192 khz digital audio adat aes format converter 24 bit interface aes-3.

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    2 user’s guide adi-8 ds © rme important safety instructions ..................................4 general 1 introduction ...............................................................6 2 package contents .....................................................6 3 brief description and characteristics......

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    User’s guide adi-8 ds © 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 p...

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    4 user’s guide adi-8 ds © rme.

  • Page 5: User’S Guide

    User’s guide adi-8 ds © rme 5 user’s guide adi-8 ds general.

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    6 user’s guide adi-8 ds © rme 1. Introduction rme's adi-8 ds is an 8-channel high-end ad/da converter with a truly unique feature set. The device combines excellent analog circuit design with the latest generation of outstanding low latency ad/da converter chips. Along with its integrated steadycloc...

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    User’s guide adi-8 ds © rme 7 4. First usage – quick start 4.1 controls - connectors - displays the front of the adi-8 ds features 16 led level meters, six select keys and 27 leds providing a detailed status display. The analog input sensitivity can be changed in the area a/d reference. In a/d state...

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    8 user’s guide adi-8 ds © rme 4.2 quick start operation after connection of all cables and power-on of the device, the configuration of the adi-8 ds begins in the clock section. Choose a clock source and a sample rate. Connect the trs-jacks or the d-sub connector with the analog signal source. Chang...

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    User’s guide adi-8 ds © rme 9 5. Accessories rme offers several optional components for the adi-8 ds: part number description ok0050 optical cable, toslink, 0.5 m (1.7 ft) ok0100 optical cable, toslink, 1 m (3.3 ft) ok0200 optical cable, toslink, 2 m (6.6 ft) ok0300 optical cable, toslink, 3 m (9.9 ...

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    10 user’s guide adi-8 ds © rme 6. Warranty each individual adi-8 ds undergoes comprehensive quality control and a complete test at imm before shipping. . The usage of high grade components should guarantee a long and trouble- free operation of the unit. If you suspect that your product is faulty, pl...

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    User’s guide adi-8 ds © 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 vol...

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    12 user’s guide adi-8 ds © rme.

  • Page 13: User’S Guide

    User’s guide adi-8 ds © rme 13 user’s guide adi-8 ds usage and operation.

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    14 user’s guide adi-8 ds © rme 8. Front panel controls 8.1 a/d reference the analog input sensitivity of the ad-converters is referenced to digital full scale level (0 dbfs). The choices are: +4.2 dbu (-10 dbv compatible), +13 dbu, +19 dbu and +24 dbu. As the adaptation is performed in the analog do...

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    User’s guide adi-8 ds © rme 15 8.5 clock section the source and frequency of the unit's clock is configured in the clock section. The button clock lets you step through the options external clock (word, aes, adat) and internal clock, and sets the sample rate range for both an external and the intern...

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    16 user’s guide adi-8 ds © rme 8.6 d/a input the button d/a input selects the signal source of the da-converters. A currently active patch mode does not disable this function, the da- conversion is always available. Each input has its own sync led. If a valid input signal is applied, synccheck is au...

  • Page 17: User’S Guide

    User’s guide adi-8 ds © rme 17 user’s guide adi-8 ds inputs and outputs.

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    18 user’s guide adi-8 ds © rme 9. Analog inputs / outputs 9.1 line in the adi-8 ds rear has 8 balanced line inputs, provided by 1/4" trs and a 25-pin d-sub connector. Both are internally connected, so can not be used at the same time. The electronic input stage is built in a servo balanced design wh...

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    User’s guide adi-8 ds © rme 19 9.2 line out the adi-8 ds has 8 balanced line outputs on the rear, provided by 1/4" trs and a 25-pin d-sub connector. They have their own output drivers respectively and can there- fore – in contrary to the inputs – be used simultaneously. The electronic output stage o...

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    20 user’s guide adi-8 ds © rme 10. Digital inputs / outputs 10.1 aes/ebu the four aes/ebu inputs and outputs are provided on the rear of the adi-8 ds via a 25-pin d- sub connector with tascam pinout (pinout see chapter 12.5). A digital breakout cable will pro- vide 4 male and 4 female xlr connectors...

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    User’s guide adi-8 ds © rme 21 10.2 adat optical the adi-8 ds provides two digital inputs and outputs in adat optical format. Using sample rates up to 48 khz only the port labelled main is relevant for operation. Higher sample rates than 48 khz are realized by sample multiplexing. When using more th...

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    22 user’s guide adi-8 ds © rme 11. Word clock 11.1 word clock input and output input the adi-8 ds word clock input is active when wck is chosen in the clock section. The signal at the bnc input can be single, double or quad speed, the adi-8 ds automatically adapts to it. As soon as a valid signal is...

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    User’s guide adi-8 ds © rme 23 11.2 operation and technical background in the analog domain one can connect any device to another device, a synchronization is not necessary. Digital audio is different. It uses a clock, the sample frequency. The signal can only be processed and transmitted when all p...

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    24 user’s guide adi-8 ds © rme 11.3 cabling and termination word clock signals are usually distributed in the form of a network, split with bnc t-adapters and terminated with resistors. We recommend using off-the-shelf bnc cables to connect all devices, as this type of cable is used for most compute...

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    User’s guide adi-8 ds © rme 25 user’s guide adi-8 ds technical reference.

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    26 user’s guide adi-8 ds © rme 12. Technical specifications • power supply: internal, 100-240 v ac, 30 watts • typical power consumption: 12 watts • dimensions including rack ears (wxhxd): 483 x 44 x 242 mm (19" x 1.73" x 9.5") • dimensions without rack ears/handles (wxhxd): 436 x 44 x 235 mm (17.2"...

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    User’s guide adi-8 ds © rme 27 12.2 digital inputs aes/ebu • 4 x 25-pin d-sub, transformer-balanced, galvanically isolated, according to aes3-1992 • high-sensitivity input stage ( • spdif compatible (iec 60958) • accepts consumer and professional format • lock range: 27 khz – 200 khz • jitter when s...

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    28 user’s guide adi-8 ds © rme 12.3 digital outputs aes/ebu • 4 x, transformer-balanced, galvanically isolated, according to aes3-1992 • output voltage professional 4.0 vpp • format professional according to aes3-1992 amendment 4 • single wire: 4 x 2 channels 24 bit, up to 192 khz adat • 2 x toslink...

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    User’s guide adi-8 ds © rme 29 12.5 connector pinouts d-sub aes/ebu the d-sub connector provides four aes inputs and outputs. The pinout uses the widely spread tascam scheme. Tascam: signal in 1/2+ in 1/2- in 3/4+ in 3/4- in 5/6+ in 5/6- in 7/8+ in 7/8- d-sub 24 12 10 23 21 9 7 20 signal out 1/2+ ou...

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    30 user’s guide adi-8 ds © rme d-sub analog inputs / outputs the 25 pin d-sub connectors of analog input and output are wired according to the tascam scheme, as shown in this table: channel 1+ 1- 2+ 2- 3+ 3- 4+ 4- 5+ 5- 6+ 6- 7+ 7- 8+ 8- d-sub 24 12 10 23 21 9 7 20 18 6 4 17 15 3 1 14 gnd is connect...

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    User’s guide adi-8 ds © rme 31 13. Technical background 13.1 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 achie...

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    32 user’s guide adi-8 ds © rme 13.2 lock and synccheck 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 (phase locked loo...

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    User’s guide adi-8 ds © rme 33 13.3 latency and monitoring the term zero latency monitoring has been introduced by rme in 1998 for the digi96 series and describes the ability to pass-through the computer's input signal at the interface directly to the output. Since then, the idea behind has become o...

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    34 user’s guide adi-8 ds © rme 13.4 ds - double speed when activating the double speed mode the adi-8 ds 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 grant...

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    User’s guide adi-8 ds © rme 35 13.6 aes/ebu - spdif the most important electrical properties of 'aes' and 'spdif' can be seen in the table below. Aes/ebu is the professional balanced connection using xlr plugs. The standard is being set by the audio engineering society based on the aes3-1992. For th...

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    36 user’s guide adi-8 ds © rme 13.7 signal to noise ratio in ds- / qs-operation the outstanding signal to noise ratio of the adi-8 ds ad-converters can be verified even with- out expensive test equipment, by using record level meters of various software. But when acti- vating the ds and qs mode, the...

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    User’s guide adi-8 ds © rme 37 13.8 steadyclock the steadyclock technology of the adi-8 ds guarantees an excellent performance in all clock modes. Its highly efficient jitter suppression refreshes and cleans up any clock signal, and pro- vides it as reference clock at the word clock output. Usually ...

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    38 user’s guide adi-8 ds © rme 14. Block diagram.