Brainstorm DCD-8 Word Clock Distripalizer
Contents
1. The DCD 8 accepts AES double wire S MUX and S MUX IV The input formats on the AES S PDIF and ADAT connectors will be adjusted based on the REFERENCE the output formats will be adjusted based on the RATE To run the ADAT input in S MUX mode the relevant domain REFERENCE must be forced into the 96000 range 4 channels or in the 192000 range 2 channels to run the ADAT output in S MUX mode the relevant domain RATE must be forced into the 96000 range 4 channels or in the 192000 range 2 channels All AES S PDIF and Optical S PDIF 1 O s run in standard single wire mode from 44 1k to 96k and in double wire mode from 176 4k to 192k range 18 5 FACTORY DEFAULT SETTINGS The following are the factory default settings AUDIO OUT 9 AUDIO IN B RATE B 48000 Hz Set VSO off DCD Link Optical 1 0 ADAT AES Input Default Clock Source Menu Lockout These settings can be recalled in menu 92 Page 24 DCD 8 User Manual 18 6 USER SETTINGS Use this chart to note your own settings USER 1 USER 2 ALT REF A WCLK OUT AUDIO OUT AUDIO IN A AUDIO IN B Optical I O AES Input Default Clock Source Menu Lockout BRAINSTORM ELECTRONICS INC www brainstormtime com Distributed Exclusively by plus24 1155 N La Brea Avenue West Hollywood CA 90038 USA Tel 323 845 1171 Fax 323 845 1170 www plus24 net DCD Word Clock D2. 11 Smp ebd qi Cm 11 seges Mo 11 33 AES Input Default Clock Source 12 Als Input latus ssepe Rae REA CARO SPORE RO Rape 12 42 Terminadtlon exis Rem cx DSS Cod 12 91 Menu Lockout 12 O2 SeHINGS iier sd EAN GIGS Meade aes LEDERER aed ERE 13 99 DCD 8 Software version amp FW Serial No 13 9 NON VOLATILE STORAGE 2 0 0 cc ccc ee ete eee hes 13 OZ LOCK SPAIUS ote cee edt ote ut anid ee ce castes cote utes 14 11 DEFINING THE RATE Set Auto amp learn 14 T2 ALTERNATE REFERENCE dete et UE aee rece ee tto te ees 16 T3 AUDIO ROUTING racc ee oldie eU C e ee eed 17 REF B uy WERE SEI SEE E SE SPESE E 18 LISSFIREWIRE REESE SG xr RD ES 19 Tbeb WT IT 19 17 UPDATING THE DCD 8 FIRMWARE 19 18 APPENDIX sz vu GRE Sis VeL Se EE Ho ERR EY D Eder DX RS E De 20 Pulled Rates 2 2 0 ccc cece eee RRRRRRRRRRRRRRRR RII 20 oo sus teens 20 Error Messciges isse dase Dese aeri WES GU Rue aes 2 Digital Audio Formats beesciesstscerexerusetkbE ePi duds 23 Factory Default Settings 23 User Settings ees Re vx nay ee eee E EYE EXE ee ES 24 DCD 8 User Manual Page
3. For additional information go to chapter 11 on page 15 The last type of message is more of a warning message and requires user feedback e Press ENTER for options This message appears after a failure of the reference To alert the user it flashes continuously on and off on the bottom line of the LCD dis play along with the REF ERROR LED Pressing the ENTER key gives several options To access these options use the UP and pown keys The options available vary depending on the ALT REF settings menu 03 If an alternate reference had been set and the DCD 8 switched to it Retry REF A to attempt to re clock to the main reference Clear REF ERROR this option clears the flashing REF ERROR LED and exits the DCD 8 stays locked to the alternate reference and the LCD keeps on flash ing the Enter for options message offering only options 1 amp 3 this time EXIT with no change exit but leave everything as is If no alternate reference had been set and the DCD 8 is HOLDING Clear REF ERROR this option clears the flashing REF ERROR LED and exits the DCD 8 stays in HOLDING mode EXIT with no change exit but leave everything as is DCD 8 User Manual Page 23 18 4 DIGITAL AUDIO FORMATS The following table lists all the digital audio formats accepted by the DCD 8 Formats Number of channels Connector Valid Rates per connector Lababewe a 8 TOStink
4. ence signal IMPORTANT NOTES This input is unterminated If the DCD 8 is the last item in the chain it needs to be terminated by placing a 75Q terminator on the loop BNC If the video reference is HD analog reference signal we recommend NOT daisy chaining it gt Use a standard 750 video cable 8 WORD CLOCK IN 2 BNC connectors Transformer isolated WC inputs Internally terminated with 75Q gt Use standard 75Q coaxial BNC cables 9 WORD CLOCK OUT 8 BNC connectors WC outputs grouped in 4 pairs 1 amp 2 3 amp 4 5 amp 6 7 amp 8 gt Use standard 75Q coaxial BNC cables 10 VIDEO SYNC GEN OUT Optional For info see the Video Sync Generator s manual REF AESi 192 881 k LOCKED 11 WORD CLOCK INPUT 3 FRONT PANEL 1 BNC connector transformer isolated This connector is identical to the other 2 WC inputs on the rear panel gt Use a standard 75Q coaxial BNC cable 12 AES EBU INPUT 3 FRONT PANEL 1 BNC connector transformer isolated This front panel BNC accepts unbalanced AES EBU input AES3id gt Use a standard 75Q coaxial BNC cable DCD 8 User Manual Page 5 E SS SSS SSS Sea a 3 Installation 3 1 UNPACKING When unpacking the DCD 8 the following items should be in the shipping carton DCD 8 unit Universal Power Supply 12VDC 25w IEC power cable Owner s Manual amp Registration card 3 2 INSTALLING THE DCD 8 The DCD 8 is designed to be
5. 48 003k in 48 003K out gt rence The OFF SPEED message will appear on 44 1k in 44 1k out the LCD if the reference is off 44 1 e Ref SET 48k amp Rate SET 44 1k With Ref in SET if the input rate is different than 48 003k in 44 103k out gt what was set the DCD 8 applies the off speed 44 1k in 40 517k out ratio to the SET output frequency Note 48 003 is only used in these example to illustrate that the DCD 8 when locked to the reference will track small variations Page 16 DCD 8 User Manual 12 Alternate Reference If the external reference fails the DCD 8 has 2 different ways of insuring that the WC output remains safely uninterrupted 12 1 MAIN REFERENCE FAILURE WITH AN ALTERNATE REFERENCE SET If an alternate reference was set in menu 3 the DCD 8 goes into the following cycle Step 1 When a failure occurs 2 things happen immediately the PLL switches to the Alternate Reference the generator goes in HOLDING mode holding the last known frequency Step 2 After about 2 seconds the generator switches smoothly to the alternate reference During Step 1 the LCD display indicates HOLDING as the lock status During Step 2 the lock status goes from LOCKED to LOCKED as it reaches full lock If the Alternate Reference fails the DCD 8 goes back through steps 1 and 2 but this time Internal Crystal is used as the new reference 12 2 MAIN REFERENCE FAILURE WITH NO ALTERNATE REFERENCE SE
6. To know what signal has been assigned to each output there are 22 LED s describ ing the selections made Word Clock Outputs A B TBO ASSIGNMENTS These LED s indicate which frequency has been WORD CLOCK BNC AUDIO CONNECTORS assigned to each WC output pair A or B i i ud onse 255 For WC Outputs 7 amp 8 5 LED s indicate if a multi WC 3 amp 4 2 OPTICAL e plier has been applied WC 5 amp 6 1394 Audio Outputs A B Audio WC 788 e x2 x4 x64 128 x256 If Audio is off the output is silent audio at the A or B rate LED s indicate which e If Audio is on the output is the audio source selected in menu 6 for A or 7 for B 5 3 WC GEN LED S 4 different pull coefficients are available Each has a corre sponding LED for A and B domoins e 4 16 e 0 1 e 0 1 e 40 These coefficients can be combined to create 4 27 and 4 096 VSO varispeed LED indicates that another rate non standard is generated DCD 8 User Manual Page 7 5 4 WARNING LED S REF ERROR a failure of the selected reference occurred ALT REF the DCD 8 had to switch to the alternate reference PHASE ERROR one of the inputs is out of phase see menu 41 TERMINATION a unit connected to one of the WC outputs is improp erly terminated see menu 42 B REFERENCE domain B is not using the same reference as domain A 5 5 VIDEO
7. sary But the DCD 8 can also be set up to simply generate the reference frequency This is done through the use of the SET AUTO and LEARN functions 11 1 RATE MENU In the Rate menu the DCD 8 offers a choice between SET and AUTO With SET the user can select a specific rate With AUTO the DCD 8 determines the rate based on the selec tion made in the Reference menu AUTO simply mirrors the Reference menu NOTE Auto is not available if the reference selected is Internal or Video J 11 2 REFERENCE MENU In the Reference menu the DCD 8 offers a choice between LEARN and SET In the LEARN mode DCD 8 measures the input reference and determines it s rate In SET the user determines it E Ror ee JT EE p PaSa jal egr T Most of the time LEARN will work fine However at times the user may choose SET to be sure the DCD 8 does not misinterpret an input frequency which is slightly incorrect The Set mode may also be chosen for more failsafe operation in that there is no chance that the DCD 8 will re define a frequency which drifts over time DCD 8 User Manual Page 15 11 3 ABOUT USING THE SET MODE FOR THE REFERENCE WARNING It is very important to understand that SET overrides the DCD 8 When using this function the user can potentially mislead the DCD 8 and affect the output frequency This could be intentional But caution should be used here When SETTING the rate of the reference there i
8. 2 completely independent units NOTE A warning LED lights up on the front panel to alert the user When setting a separate reference for B the main menu will reflect this However the amount of information displayed will be reduced due to the space available Both refer ences will be displayed but not their frequency Similarly when displaying Off Speed condition see chapter 11 the measured frequency will not be displayed Those missing frequency indications normally appear on the bottom line which is used up here for Ref B DCD 8 User Manual Page 19 15 FireWire The DCD 8 includes a FireWire I O which is used to transmit and receive digital audio as well as to update the current software version see chapter 17 Drivers for PC and Mac are available for download at www brainstormtime com Once installed the DCD 8 should be recognized by your computer as an 8 channel device The DCD 8 can lock to the clock coming from the FireWire audio and clean it up It can also re clock and route audio to and from a FireWire device The FireWire audio is not implemented yet in version 1 03 16 DCD Link Multiple DCD 8 s can be linked together by simply connecting an output from the Master DCD 8 into the slave DCD 8 and selecting it as the reference on the slave DCD 8 The DCD link option goes a little further by keeping multiple DCD 8 s and the optional video sync generator in phase DCD Link is activated in menu 31
9. AND RIGHT TO EVEN In menu 06 amp 07 when selecting a stereo source as the input AES or S PDIF the DCD 8 gives you the option to map this input to all of the output poirs including the FireWire and connectors This means that the left channel would go to channels 1 3 5 7 and the right channel to 2 4 6 8 They would also go to all the stereo outputs AES or S PDIF Page 18 DCD 8 User Manual _ a eas 13 2 MAPPING OPTION 2 8 CHANNEL ROUTING MAP If not selecting Left to Odd Right to Even the DCD 8 uses a routing map as described below This routing map will vary depending on the rate at which the router is running due to the various bit splitting formats accepted by the DCD 8 S MUX and AES double wire For more on digital audio formats go to Appendix 4 on page 23 FireWire ADAT ADAT S MUX AES amp S PDIF 44 1 to 96k 44 1 to 48k 88 2 to 96k 44 1 to 96k FireWire ADAT S MUX IV AES Double Wire 176 4 to 192k 176 4 to 192k 176 4 to 192k 182 amp 384 2 5868788 14 Ref The DCD 8 has 2 separate domains These domains used to generate mul tiple rates simultaneously Under most circumstances both domains will use the same ref erence Therefore the default setting for Ref B menu 22 is USE REF A However if necessary a separate reference can be selected for domain B In essence this would be separating the DCD 8 in
10. O can be set to ADAT or S PDIF Optical Changing this setting may cause an error of this O was selected as a reference or an audio source see appendix 3 for more on error messages Page 12 DCD 8 User Manual 8 12 MENU 33 AES INPUT DEFAULT CLOCK SOURCE When any AES or S PDIF source is used as a reference or as an audio source it is automatically used as the default clock source in that order of priority If not the user can determine in this menu which AES or S PDIF source to use as the clock source This will be used by the DCD 8 primarily for measurements frequency amp phase In AUTO mode the DCD 8 scans through each input and selects the first valid signal it finds When no AES inputs are connected status indicates Scanning 8 13 MENU 41 INPUT STATUS This menu displays the rate and phase information for each input To view a different input go to the input field and use the uP and Down keys Note that the phase information is not implemented in software version 1 03 8 14 MENU 42 TERMINATION This pages shows a termination measurement for each of the 8 word clock outputs These measurements are not meant to be accurate but to give an indication Ideally the value displayed should be 750 If lt 480 the word Double is displayed if lt 300 Triple if 250009 Open If any output is double or triple terminated the TERMINATION warning LED lights up To view a different o
11. REF combination alt A B unavailable Domains A amp B cannot have dissimilar AES SPDIF reference combinations AES inputs share a single PLL see menus 02 amp 22 The same applies to ALT REF A menu 03 e ERROR REF B same as REF A e ERROR REF B same as ALT REF A The same source cannot be assigned to Ref B and REF A or ALT REF A In that case Ref B reverts to Use Ref A Page 22 DCD 8 User Manual ee The following 3 messages are informative messages e ERROR REF Retry failed Original reference found to be missing during Retry e INFO REF Retry required PLL reset System was not locked when ref Retry requested smooth re lock not attempted and PLL re started to guarantee synchronization e INFO Saving User Settings System is in the process of saving user settings following a Save request The following 3 are also informative They display if the reference rate or alt ref rate is on LEARN and the incoming rate changes e INFO Learned rate change REF A e INFO Learned rate change REF B e INFO Learned rate change ALT REF A e Off Speed This message appears when the reference is detected to be off speed by more than 1 5 The main display alternates between the normal LOCKED status and the Off Speed indication staying about 2 sec on each one When there is only a single reference A the measured reference frequency is shown on the bottom line for comparison with the nominal reference rate
12. SET the user determines the incoming rate For more information on Set vs Learn go to chapter 11 8 3 MENU 03 ALTERNATE REFERENCE A The alternate reference is used as a backup reference in case the main reference fails If it happens the DCD 8 smoothly switches to the alternate reference For more on Alternate Reference see chapter 12 Similar to menu 02 when selecting any of the external sources a RATE menu appears on the bottom line The RATE can be on AUTO or SET Page 10 DCD 8 User Manual 8 4 MENU 04 WORD CLOCK OUT Word Clock outputs are adjustable in pairs For each pair the choice is A or B referring to the rates set in menus 01 and 21 Outputs 7 amp 8 can also add a multiplier to the A or B rates see Appendix 2 Note that only the available choices will be displayed 8 5 MENU 05 AUDIO OUT WAS GOTO nim For each Audio Out the choices are e A Mute Silent audio at the A rate e A Audio Re clocked audio source A as selected in menu 06 e B Mute Silent Audio at the B rate e B Audio Re clocked audio source B as selected in menu 07 NOTE The AES Audio Out includes all AES and S PDIF outputs If audio is unavailable status indicates Mute 8 6 MENU 06 AUDIO IN A The selected audio source can be re clocked in domain A and routed to any of the audio outputs in menu 05 For more on Audio Routing see chapter 13 NOTE this re clocking occurs in the A domain If your audio source is not s
13. SYNC LED S These LED s are only active if the optional Video Sync Generator card has been installed in your DCD 8 For information on these LED s please refer to the manual of the optional Video Sync Generator card 6 Navigation Keys WARNING REF ERROR ALTREF PHASE ERROR TERMINATION REFFERENCE VID SYNC GEN 29 5025242 HD1 6 1 SET UP KEY To access the different menus press the set UP key While in SET UP mode the Set Up LED is on To exit the SET UP mode simply press the ser uP key again 6 2 ENTER KEY Scrolling through the different values will not affect anything Only after the ENTER key is pressed will a change take place When exiting a menu without pressing the ENTER key the changes are lost 6 3 UP DOWN LEFT RIGHT KEYS These keys are directly left of the ENTER and ser ur keys They are not labeled as such because their function is fairly obvious While in Set Up mode the uP and pown keys are used to change the value of the selected field while the LEFT and RIGHT keys are used to select the different fields uP and pown keys are also used to change menu pages Page 8 DCD 8 User Manual 7 Menu Navigation 7 1 SELECTING A MENU When the Set Up mode is entered the LCD display switches to the Set Up menu last used with the cursor on the far left position in the upper
14. The master unit should be on Transmit and the slave unit s on Receive and re transmit Connect a 75Q coaxial cable between the DCD Link OUT RCA S PDIF OUT on the master unit and the DCD Link IN on the slave unit The reference on the slave DCD 8 is automatically changed to DCD Link and the reference rate is shown on the LCD display DCD Link is not implemented in version 1 03 17 Updating the Firmware You should compare your software version number menu 99 to the latest version num ber as listed on our web site If not current you should update your DCD 8 Updating the software version is done through the FireWire port It can be done with a Mac or a PC The procedure is similar for both computers 1 Install the DCD 8 driver on your computer this would have already been done if you are using FireWire audio Connect a FireWire cable between the DCD 8 and your computer Run the Firmware Loader software on your computer Load the new file into the DCD 8 replacing the old one Exit the Firmware Loader Power down the DCD 8 then power up again Go to Menu 99 to verify the current software version number NO RON Page 20 DCD 8 User Manual These are the files available for download from our web site www brainstormtime com DCD 8 driver PC and Mac Firmware loader PC or Mac DCD 8 current software Installation instructions PC and Mac Please note that only registered users are allowed to do
15. on the same bus 9 Non Volatile Storage The DCD 8 has 4 user presets and a factory default preset see menu 92 above In addition it has non volatile memory holding the current settings This includes all DCD 8 settings such as rate and reference selections as well as output assignments This memory is continuously updated so that when the unit is turned on it is in the same condition as it was when powered down NOTE You should wait approximately 10 seconds after a change was entered before pow ering down to allow for the flash memory to be updated Page 14 DCD 8 User Manual 10 Lock Status The lock status of the DCD 8 is displayed in the center of the LCD display Below are the 7 different possibilities and what they indicate NO REF Reference missing UNLOCKED Unable to lock SLEW PLL is trying to lock LOCKED Loose Lock LOCKED Lock confirmation phase LOCKED Good and locked HOLDING Holding last known frequency after lock failure The DCD 8 always tries to lock to it s input Once the rate has been established SET or LEARN if the reference is off speed by more than 10 it switches to SLEW Note that with video the 10 rule applies to the horizontal frequency and not the frame rate 11 Defining the rate Set Auto amp Learn Part of the DCD 8 s great flexibility comes from the fact that the rate generated does not have to match the rate of the reference Different frequencies can be cross locked if neces
16. the menus concerned NOTE These messages appear on the LCD display for about 3 1 2 seconds and may be cancelled by any key press e ERROR Same audio source both domains Same audio group cannot be source to both domains see menus 06 amp 07 NOTE the DCD 8 considers all AES amp S PDIF as a single source as far as the audio router is concerned e ERROR ADAT input selected but not available Can t choose ADAT as audio source when optical connectors switched to Optical S PDIF see menus 06 07 amp 32 e ERROR AES 3 input selected but not available Can t choose AES3 as audio source when optical connectors switched to Optical S PDIF see menus 06 07 amp 32 e ERROR Optical input selected but not available Can t choose Optical S PDIF as audio source when optical connectors switched to ADAT see menus 06 07 amp 32 e ERROR Optical reference not available Can t choose Optical S PDIF reference when optical connectors switched to ADAT may occur when switching the optical input from Optical S PDIF to ADAT see menus 02 amp 32 e ERROR Optical choice prevents reference select Can t choose ADAT or AES3 reference when optical connectors switched to Optical S PDIF may occur when switching the optical input from ADAT to Optical S PDIF see menus 02 amp 32 e ERROR Menus Locked Out Attempt to change a menu setting while menus are locked out see menu 91 e ERROR REF combination A B unavailable e ERROR
17. 3 1 Introduction Congratulations on purchasing the DCD 8 Word Clock Distripalyzer In the tradition of the Brainstorm Distripalyzers the DCD 8 is a Word Clock distributor striper and analyzer Inside the DCD 8 is a very flexible generator with ultra low jitter With its many I O s the DCD 8 is a complete word clock solution It s main features include Word clock generator Word clock extractor Word clock distributor Digital Audio router Format converter Word clock analyzer Video Sync Generator optional 1 1 SYSTEM ARCHITECTURE The DCD 8 generator has 2 domains amp B each capable of generating a differ ent rate Any rate can be generated up to 192KHz The DCD 8 can be referenced to any of the inputs WC AES S PDIF FireWire Optical video or internal crystal The A and the B rates can be assigned to any word clock BNC output and audio output as silent audio In addition each domain can re clock any audio input and route it fo any audio output WC 1 WC 2 WC 3 AES 1 OPTICAL INTERNAL REFERENCE SELECTOR OPTICAL A DOMAIN B DOMAIN Rate selection Rate selection WC GENERATOR L WC GENERATOR AUDIO INPUT SELECTOR i AUDIO RECLOCKING AUDIO RECLOCKING A Domain B Domain Domain Select Domain Select Domain Select Domain Select i MULTIPLIER i 1 i 1 1 1 1 1 1 D 1 1 1 1 1 D 1 1 BNC OUT 1 amp 2 BNC OUT 384 BNC
18. DCD 8 Word Clock Distripalyzer Owner s manual Version 1 0 3 Sept 2006 All materials herein Brainstorm Electronics Inc Brainstorm Electronics reserves the right to change or modify the contents of this manual at any time Credits Concept AID Brainstorm Electronics Software Gerry Lester Manual Bernard Frings Gerry Lester Technical Assistance Jeff Evans Jim Pace Brainstorm Electronics Inc 5100 Goldleaf Circle 215 Los Angeles CA 90056 USA Tel 1 323 845 1171 www brainstormtime com Page 2 DCD 8 User Manual Table of contents T INTRODUCTION t EY EUR sun AUS oe we Ses SESW ees 3 2 O S DESCRIPTION AND CABLE REQUIREMENTS 4 3c INSTALLATION nc tre ER Re ves Rue eu Eb eS 5 A QUICK START 52x Dus Bee E REGES PS er eic ues Es 5 5 FRONT PANEL DISPLAY amp LED S 2 0 ec eee ene 6 6 NAVIGATION KEYS x ee ur Go Bk SG Bow DOS bo eS hike wed ta Be 7 7 MENU NAVIGATION 1 0 0 0 000000 RRRRRRRRRRRRRRRRRRRRR Re 8 8 MENUS DESCRIPTION sssssee RR a aeee ea RR 9 Ol Rate A oo RR RR RR R3 res 9 02 Reference 9 03 Alterncte Reference seci eeu Ra RR RC eoe ER 9 04 Word Clock Out 22 02 0200 10 05 Audio Out 2 0 ee ec e 10 INA 10 07 Audio 10 ZV ROE B ERG CER SR T A oo ONES 11 22 Reference B
19. OUT 5 amp 6 BNC OUT 7 amp 8 AES EBU OUT S PDIF OUT OPT OUT 1392 OUT 1 1 D WORD CLOCK OUTPUTS AUDIO OUTPUTS Page 4 DCD 8 User Manual 2 I O s Description and Cable Requirements The DCD 8 requires 12VDC 25W Acceptable voltage range is 12VDC 10 thru 18VDC 10 The external power supply provided with the DCD 8 can accept 100 to 240 VAC input at 50 60 Hz so it is suitable for use anywhere in the world gt Use the standard IEC power cable supplied This IEEE 1394 I O is used to send receive digital audio to from a FireWire device gt Use standard 6 pin FireWire 400 cables 3 OPTICAL Optical transmitter amp receiver this O can be used with ADAT or S PDIF optical audio signals See menu 32 for selecting the appropriate format gt Use standard optical fiber cables 2 RCA connectors 1 transformer isolated Used for coaxial S PDIF Used also to link multiple DCD 8 s together see menu 31 gt Use standard 75Q RCA coaxial cables 5 AES EBU IN 2 XLR female connectors Transformer isolated bal anced inputs accepts AES3 or AES11 gt Use standard 3 conductor shielded 1100 XLR cables 6 AES EBU OUT 2 XLR male connectors Transformer isolated bal anced outputs for AES3 or AES11 gt Use standard 3 conductor shielded 1100 XLR cables 7 VIDEO REF IN amp LOOP 2 BNC connectors Input amp Loop through Video Ref can be NTSC PAL or HD analog refer
20. T If no alternate reference was set in menu 3 the DCD 8 holds the last known frequency and displays HOLDING in the LCD display If a signal is still present at the main reference input the DCD 8 attempts to lock to it again If it succeeds it goes through the normal Locked sequence if not it continues holding and attempts to Lock to the main reference again If no signal is present at the main reference input the DCD 8 will remain in HOLDING mode indefinitely 12 3 REVERT TO REF A After a failure of the main reference the following error message appears on the lower line of the LCD display PRESS ENTER FOR OPTIONS This message flashes to alert the user of the problem along with the REF ERROR LED After pressing the ENTER key the options available are EXIT WITH NO CHANGE CLEAR REF ERROR RETRY REF A DCD 8 User Manual Page 17 The third option RETRY REF A is only available if an Alternate Reference has been set in menu 03 If no Alternate Reference was set the DCD 8 will automatically retry Ref A NOTE When reverting to Ref A the transition will be smooth but only if the DCD 8 was locked to either the alternate reference or the internal crystal before selecting RETRY REF A 12 4 ERROR MESSAGES The following messages appear in the LCD display when appropriate REF RETRY FAILED REF RETRY REQUIRE PLL RESET DCD 8 was not locked see NOTE above 12 5 WARNING LEDS REF ERROR This
21. T navigation key once to move to the Rate field Press the UP or DOWN keys to select the desired rate Press the ENTER key to confirm your choice Press the ser uP key again to exit SET UP the Set Up LED goes out Your selection is reflected in the upper right corner of the LCD display following FQ A 4 2 CHANGING THE REFERENCE To select a different reference follow these steps Press the ser uP key the ser up LED lights up Press the UP key once to go to Menu 02 Press the RIGHT navigation key once to go to the REF selection Press the UP or DOWN keys to select the desired reference Press the ENTER key to confirm your choice Press sEr UP key again to exit SET UP the Set Up LED goes out Your selection is reflected in the upper left corner of the LCD display following REF Page 6 DCD 8 User Manual 5 Front Panel Displays amp LED s The DCD 8 has been designed so that most of the relevant information would always be available at a glance on it s front panel ES WORD CLOCK DISTRIPALYZER 9 CO 9 5 1 LCD DISPLAY The 80 character LCD is broken into three separate areas e left displays the currently selected reference and it s frequency e Center shows the Lock Status Right displays the selected A amp B frequencies Selected Reference Lock Status A amp B Frequencies 5 2 OUTPUT ASSIGNMENTS LED S
22. et Auto and Learn are used to distinguish whether the user is establish ing the value Set or if the system is deducing the value automatically Auto amp Learn See chapter 11 for more information on these functions DCD 8 User Manual Page 9 8 Menus Description Chapter 8 lists all the different menus available in the SET UP mode Note that some of the menu options will change based on your selections As an example if S PDIF has been selected in menu 32 as the optical connector format ADAT no longer appears as a reference option in menu 02 and vide versa 8 1 MENU 01 RATE A 011 RATE A Set ERM 3 15 36536 In SET mode a specific frequency can be selected in AUTO mode the reference s rate is automatically selected AUTO mirrors the reference selection AUTO is not available if the reference is Internal Crystal or Video VSO can be activated in SET mode VSO range is 5 in 001 steps or 001 semi tone Please note that VSO is not implemented in software version 1 03 Status is the actual rate in Hz 8 2 MENU 02 REFERENCE A Select any of the available external sources as reference or use the internal crystal Choices are Internal AES 1 ADAT Word Clock 1 AES 2 Optical S PDIF Word Clock 2 AES 3 1394 Word Clock 3 S PDIF Video When selecting any of the external sources a RATE menu appears on the bottom line RATE has 2 modes LEARN the DCD 8 determines the incoming rate
23. istripalyzer A Distributor a Stripper and an Analyzer Operation Manual Software version 1 03 N BRAINSTORM 4 ELECTRONICS INC Intelligent Solutions For The Recording Studio
24. line To move to another menu with the cursor on the upper left position press the uP or DOWN key 7 2 CHANGING VALUES To edit one of the fields on the current menu press the RIGHT or LEFT key to move the cursor to the desired field Then press the uP or DOWN key to change the value Note that no change will take effect until the ENTER key is pressed When exiting a menu without pressing the ENTER key the changes are lost 7 3 THE CURSOR The cursor position is indicated with a gt character implemented as inverse video flashing on and off For numeric entry such as the VSO value an additional under line cursor appears beneath the digit column being adjusted After a value is edited the cursor changes to a solid triangle until the ENTER key is pressed If the cursor is moved to another field without pressing the ENTER key first the solid triangle stays in front of the edited field to indicate a change was made but not entered yet 7 4 STATUS VALUES Throughout he different menus values appear in the display enclosed in square brack ets These are status values Status values are the values actually obtained based on a menu selection In some cases this might be a rate in Hz In others it might be a different value if the one asked for is unavailable For example in menu 5 if Audio is unavailable Mute will be dis played 7 5 SET VS AUTO VS LEARN The words S
25. mounted in a standard 19 rack It requires 1U in height Ideally it should be located near your AD DA and in the same rack Usual precautions should be respected when wiring the DCD 8 use high quality cables with good shield to guarantee a good signal transmission Keep your cables as short as possible Word Clock inputs on the connected devices need to be terminated If they are not use a BNC T with a 750 termination To preserve the integrity of the transmission line it is recommended that you do not daisy chain word clock outputs as it can significantly degrade signal quality A Quick Start The DCD 8 is very versatile and can accommodate many different situations You should read through this manual to familiarize yourself with its many features The following few simple steps are only provided to get you started right away Connect the power supply provided with the DCD 8 to the 4 pin DIN power connector on the rear panel and plug the IEC cable into a proper wall outlet This turns on your unit If the unit has already been used please refer to page 13 to reset the factory settings If not out of the box the DCD 8 is set to generate a 48KHz Word Clock referenced to its internal crystal This rate is fed to all 8 WC outputs as well as all 5 audio outputs as silent audio 4 1 CHANGING THE RATE To select a different rate follow these steps Press the ser uP key the set up LED lights up In Menu 01 press the RIGH
26. red LED flashes as soon as the main reference fails ALT REF This green LED lights up as soon as the DCD 8 switches to the alternate refer ence It flashes if the Alternate Reference fails 12 6 REF B Under most circumstances REF A will be used by domains A amp B However in menu 07 a separate reference can be set for domain B But the Alternate Reference option is only available for the main reference REF A and not REF B If REF B fails it will go through the procedure described in 12 2 on the previous page 13 Audio Routing One of the features of the DCD 8 is to re clock an audio input and route it fo an audio output SELECT AN INPUT route audio through the DCD 8 an input must first be selected in menu 06 or 07 the DCD 8 allows 2 separate inputs to be selected one for domain A and one for domain e SELECT AN OUTPUT That input must then be assigned to an output In menu 05 under the desired output select A Audio to assign the A input or B Audio to assign the B input On the front panel under Output Assignments the AUDIO LED s indicate that audio is being routed at the same time the A and LED s indicate which input is being routed WARNING When routing audio through the DCD 8 the audio is re clocked in either domain A or B It is imperative that the audio source be synchronous with the domain selected Otherwise signal degradation will occur 13 1 MAPPING OPTION 1 LEFT TO ODD
27. s the possibility that the selected rate will not match the measured rate actual rate If that is the case the DCD 8 will still lock to the reference but the output frequency will be adjusted proportionately In the second example below with the NTSC video reference is SET as PAL the A fre quency SET at 44100Hz will actually be 52867Hz 25 29 97 x 44100 52867 11 4 OFF SPEED INDICATION When the reference is detected to be off speed by more than 1 5 the DCD 8 alerts the user as follows The main display alternates between the normal LOCKED status and the OFF SPEED indication staying about 2 seconds on each one The measured reference frequency is shown under the words Off Speed for comparison with the nominal rate shown under the reference Here is an example of the Off Speed indication for Ref A WCI 11 5 HOW ALL THIS WORKS To help understand how these different modes interact lets take a look at a few examples e Ref LEARN amp Rate AUTO In this case no rate needs to be programmed 48 003k in 48 003k out gt DCD 8 learns the incoming rate and rege 44 1k in 44 1k out nerates it What comes in is what comes out e Ref LEARN amp Rate SET 48k Here if the DCD 8 detects that the input rate 48 003k in 48 003k out gt has changed it makes the necessary adjust 44 1k in 48k out ments fo maintain the output rate as set e Ref SET 48k amp Rate AUTO When set on AUTO the rate mirrors the refe
28. utput go to the output field and use the uP and DOWN keys NOTE These are DC measurements It may not measure AC coupled inputs correctly 8 15 MENU 91 MENU LOCKOUT To prevent accidental changes the DCD 8 menus can be locked out In this mode no changes are permitted If a change is attempted while the menus are locked out an error message appears on the LCD display ERROR Menus Locked Out DCD 8 User Manual Page 13 8 16 MENU 92 SETTINGS This menu is used to store and recall user presets The DCD 8 has provisions to store up to 4 different presets labeled USER O through USER 3 To store a preset select SAVE Then select the user preset number you would like to save to and press ENTER To recall a preset select RECALL Then select the user preset number you would like to recall and press ENrER FACTORY DEFAULTS There is an additional preset holding the Factory Defaults This preset can only be recalled and cannot be modified For details on the Factory Defaults see Appendix 5 8 17 MENU 99 DCD 8 SOFTWARE VERSION SOFTWARE VERSION c Dents This menu displays the unit s software version number and its FireWire serial number To update the software version refer to chapter 17 The FireWire serial number is pre programmed at the factory and cannot be changed Identification over FireWire has to be different for each DCD 8 so that more than one of them can co exist
29. wnload these files so be sure to reg ister your unit as soon as possible A CD containing these files can also be purchased Please contact us for more information 18 Appendix 18 1 PULLED RATES Here is a list of the standard and pulled rates generated by the DCD 8 BASE RATE 44 100 88 200 176 400 01 O IN L095 5 AET 1 Toe sia BASE RATE 48 000 101010 0 41656 OOO AZT 18 2 MULTIPLIER RATES Through WC outputs 7 amp 8 the DCD 8 can apply a multiplier to the selected base frequency Here is a list of the available rates An X indicates this choice is not available FSx1 FSx2 FSx4 FSx64 FSx128 FSx256 192z 19200 1220808 96 KHz 960KHz 1920KHz X 6 1440MHz 12 2880MHz Lees vade X souem x X 3072000 T2680 Lus seam X 28224m suene rese sies X 2 aos owr 619200 DCD 8 User Manual Page 21 18 3 ERROR MESSAGES When a faulty value is selected an error message is displayed as soon as the ENTER key is pressed Although the request is not granted only the status value is adjusted not the selected value Therefore every time the ENTER key is pressed the error message re appears To eliminate this an acceptable value must be entered in the proper menu Below is a complete list of all the error messages generated by the DCD 8 along with a description and
30. ynchro nous with the A rate sound degradation will occur If the input selected is unavailable the status is OFF and an error message appears see appendix 3 8 7 MENU 07 AUDIO IN B Po hae re Ta TLI z P Bese feo iz Pi I 58 5 10 iM Fa Menu 07 is identical to menu 06 for domain B DCD 8 User Manual Page 11 8 8 MENU 21 RATE B Menu 21 is identical to Menu 01 for domain B 8 9 MENU 22 REFERENCE B Under most circumstances the B domain will use the same reference as A However if necessary a separate reference can be selected for B This menu is identical to menu 02 for domain B with one additional choice Use REF A default setting For more on Ref B go to Chapter 14 page 18 CAUTION When selecting a reference in menu 22 domains A and B no longer share the same reference To alert the user of this condition a front panel warning LED turns on labeled B Reference 8 10 MENU 31 DCD 8 LINK When using multiple DCD 8 together and the optional video sync generator the DCD link feature guarantees that they stay in phase The S PDIF port is used for this link RCA connectors The choices are Off Transmit Receive re transmit When DCD Link is set to Receive amp re transmit the Reference is automatically changed to DCD Link This advanced feature is not implemented in version 1 03 8 11 MENU 32 OPTICAL I O Optical I
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