MyTek WORKSTATION24 AD/DA Owner'S Manual Download Page 10

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WORDCLOCK IN

WORDCLOCK OUT

220

110

7. External synchronization.

External synchronization is needed whenever the interface’s A/D clock has to be referenced to a clock of a
different device in the system. Here are some examples of the most popular applications:

Sound for picture. The wordclock input of the interface must be connected to a wordclock generator
synchronized to video.

To optional more channels or other equipment

VIDEO SYNC

GENERATOR

VIDEO

RECORDER

VIDEO/DIGITAL AUDIO

SYNCHRONIZER

(try Aardvark, Nvision or

other)

Summary of Contents for WORKSTATION24 AD/DA

Page 1: ...Owner s Manual REVISION 4 98 1995 1998 Mytek Digital c WORKSTATION24 AD DA 24 BIT PERFORMANCE DAW INTERFACE ...

Page 2: ...onverter 7 External sync Video Multichannel operation 8 24 bit down to 16 HiBit16 9 DDD 603 Digital AES EBU meter 10 Specifications 11 Warranty For technical support in the US please contact Mytek tel 212 274 9191 fax 212 686 4948 Overseas contact your dealer Manufactured by Mytek PO Box 1023 New York NY 10276 USA Internet http www mytekdigital com Email info mytekdigital com All rights reserved 2...

Page 3: ... clock reference Set it to Int unless you are using ext wordclock sync Chapt 7 Turns the power on and initiates the converter s self calibration Turn it off on to reset the converter There is a 5 secs delay before the interface starts to operate after the power up Power off on to reset the unit INPUT EXT WCK INTERNAL COMP DIG IN LOCK EXT DIG IN LOCK ADC SYNC AES EBU S PDIF ANALOG EXT DIGITAL POWER...

Page 4: ...USP Sadie Protools DigitalAudioLabs Audiomedia Adb Zefiro Wavecenter Sonorus Prodif TripleDat oranyothercardw digitalI O FROM ANALOG SOURCE pin 2 hot TO ANALOG MONITOR pin 2 hot Lift pin 3 for unbalanced operation ANALOG IN LEFT ANALOG IN RIGHT ANALOG OUT LEFT ANALOG OUT RIGHT WORDCLOCK IN WORDCLOCK OUT FROM COMPUTER AES EBU AES EBU S PDIF OPTICAL S PDIF OPTICAL EXT DI AES EBU TO COMPUTER 1ST DAT ...

Page 5: ...T S PDIF OUTPUT ANALOG OUTPUT S PDIF INPUT JITTER REDUCTION JITTER REDUCTION JITTER REDUCTION 4 This diagram shows the signal flow The jitter reduction circuit stabilizes the bit clock without altering the data bits All paths are 24 bit Please follow these steps to setup your system 1 Setup all connections 2 Power up the interface and all other equipment 3 Align the interface analog inputs and out...

Page 6: ...nalog output to the console VU meter If you don t have a VU meter you can use an AC voltmeter set to measure AC RMS values 0 VU at 4dB corresponds to 1 225 Volts RMS measured betweenpin2and3oftheoutputXLRs 5 UsingatweakerorasmallscrewdriveradjusttheanalogoutputssotheVUmeterreads 0VU 6 Settheoscillatorinyourconsoleat1kHzand 0VU Sendtheoscillatortotheinterfaceanaloginput 7 Selectthe analoginput Send...

Page 7: ...a 110 Ohm digital cable Second in quality comes SPDIF output which should be used with a 75 Ohm video cable The optical Toslink interface workswithplasticfibercablesuchasfortheADAT All digital inputs will correctly read either AES EBU or SPDIF signal should that be necessary Jitter performancehowevermightbecompromisedbecauseoftheimpedancemismatch The interface provides instant digital format conve...

Page 8: ...8k sampling rate Although you can hear the benefits of the bandwith extended to 40k this difference is miniscule When mixing to DAT the answer is simple 44 1k because that s what CD is If you aretrackingand aregoing to mixthrough an analogconsoleuse 48k but if theconsoleis digitalor you expect yourrecordingstobemixeddigitallylater gowith44 1k ...

Page 9: ... bit recording using bit splitter We highly recommend to mix and master to 24 bit tape rather than a DAT machine Maintaining 24 bit signal path throughout the recording and redithering just before sending the material to CD plant results in significantly better sounding CD and a better quality archival material A cost effective 24 bit mastering setup can be assembled using an MDM and a bit splitte...

Page 10: ...nced to a clock of a differentdeviceinthesystem Herearesomeexamplesof themostpopularapplications Sound for picture The wordclock input of the interface must be connected to a wordclock generator synchronizedtovideo Tooptionalmorechannelsorotherequipment VIDEO SYNC GENERATOR VIDEO RECORDER VIDEO DIGITAL AUDIO SYNCHRONIZER try Aardvark Nvision or other ...

Page 11: ... the rest are slaves If you are doing sound for picture you may sync the first unittovideoasonthepreviouspage You could also daisy chain the units wordclocks but we recommend using the T adaptor for more stable clock The wordclock output of the interface can drive up to 15 LS TTL loads The wordclock input is one LS TTLload Theinterfaceoutputswordclockonlyif analoginput isselected WORDCLOCK IN WORD...

Page 12: ...2R you may either slave the interface to the console or opposite The latter will not compromise A D conversion since the converterwillbereferencedtoitsinternalcrystalwithalmostnoclockjitter WORDCLOCK IN WORDCLOCK OUT 220 110 DIGITAL CONSOLE WORDCLOCK IN WORDCLOCK OUT 220 110 DIGITAL CONSOLE ...

Page 13: ...bit resolution It can be achieved thanks to almost ideal differential linearity of the Workstation24 and its very high dynamic range The program recorded using this method has more detail than if it was truncated to 16 bit The noise floor is now kept flat on the 16 bit level 96 dB while the detail is heard through the noise Truncation on the other hand would produce low level distortion and result...

Page 14: ...g over l e d can be held for 1 sec memorized or immediately turned off These functions are controlled byswitchA Memorizedsegmentcanbeclearedby clear button The middle small bargraph has two functions controlled by switch C In the phase mode it serves as a phase correlation meter In the CALREF modethebarshows0VUreferencelevel In OK l e d shows presence of input AES EBU signal i e indicates properdi...

Page 15: ...ordclock30 50kHz 117dB A wgt 114dB Tot 103dB 0 001 4dBmbalancedorunbalanced 10kOhmmin adjustable 15dB AES EBU SPDIF and or Optical Toslink depending on option all simultaneous Wordclockinandout 15LSTTLloadsmax ontheoutput 100 110 220 240Vswitchable 1rackspacewideby1Uhighby5 5 deep 19 x1 75 x5 5 Linearoversampled1bit noiseshaping linearphasedigitalfilter 24bit allstandardor30 50kHz 106dB Awgt 103dB...

Page 16: ... _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ on____________________________________ authorizedsignature____________________________________ THIS PRODUCT WAS MADE BY MYTEK DIGITAL A COMPANY SPECIALIZING IN HIGH END STUDIO EQUIPMENT OTH...

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