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DAC-SDI

1. DAC SDI SDI to NTSC PAL Encoder Component Analogue Video Converter with Genlock Rev 2 5 D pe G 3 T De D O L Ls O A A n G 3 DAC SDI Rev 2 Network Electronics ASA Thorgya P O Box 1020 N 3204 Sandefjord Norway Phone 47 33 48 99 99 Fax 47 33 48 99 98 Email support network electronics com www network electronics com Support Phone 47 90 60 99 99 Revision history Current revision of this document is the uppermost in the table below Rev Repl Date Sign Change description 2 1 2007 10 17 AS Added Materials Declaration and EFUP updated EC Declaration of Conformity 1 2002 06 21 Minimum delay mode implemented in firmware Corrected errors in pushbutton descriptions PIC sw rev 1 0 11 FPGA Firmware rev 13 network electronics com 2 DAC SDI Rev 1 2 Quick Start Guides for DAC SDI 2 1 1 2 2 Without GYDA controller Attach SDI IN and Black amp Burst signals and those output signals that you require to the backplane module see figure 2 on page 9 Set DIP switch 1 on towards backplane switches 2 and 3 according to the video mode you want see figure 4 on page 15 Set switch 7 on for PAL leave off for NTSC Leave the rest of the switches untouched Insert DAC SDI into a slot in the sub rack Power on All LED S should be green and all outputs active If this is not the case please
2. Blank amp Burst Network Electronics ASA P O Box 1020 N 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 m k al Waiwork E mail support network electronics com Web http www network electronics com innovator Technical specifications are subject to be changed without notice 9 DAC SDI Rev 1 D om UE o G S c a ma D O o DWG oa o S Oop 2 T z T Q w 238 w 5 ES S 6 ata ze gt o N L lt DL O LL O gt 8 T O k E eo a5 a 2 5 2 anornonan Ss a E E E 9 o gt 22 cf A zo one L WwW W RTT a e L SH a Oe Of Ose O Cl O ae E T Figure 3 DAC SDI simplified silkscreen figure not to scale 6 A more detailed description 6 1 Data path SDI IN is equalized and reclocked then transferred bit serially to the FPGA The FPGA De scrambles and deserializes the input to 10 bit parallel detects whether it is PAL or NTSC and Network Electronics ASA P O Box 1020 N 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 m k all Waiwork E mail support network electronics com Web http www network ele
3. see chapter 7 With GYDA controller Attach SDLIN and Black amp Burst signals and those output signals that you require to the backplane module see figure 2 on page 9 Set switch 7 on for PAL leave off for NTSC Leave the rest of the switches untouched Insert DAC SDI into a slot in the sub rack Power on All LED S should be green and all outputs active with the same settings as the previous time power was applied Communication with the card is described in section 10 E mail support network electronics com Web http www network electronics com Network Electronics ASA P O Box 1020 N 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 y Waiwork innovator Technical specifications are subject to be changed without notice 3 DAC SDI Rev 1 Contents 1 Revision history 2 2 Quick Start Guides for DAC SDI 3 2 1 Without GYDA controller 3 2 2 With GYDA controller 3 3 General 6 4 Specifications 7 5 Connector module 9 5 1 Mounting the connector module 2 a a a a 9 5 2 Correspondence of connectors and signals 000202 e eee 9 6 A more detailed description 10 Gl Data path 264 4854 doe Re EO Ee a ee owe ee we RAG Re 10 6 2 HEPROM mora sarem 640464 pe Aw EPR OG Ee Oe ee eee EES 11 6 3 Power up sequence ooa a 11 6 4 Clocks and genlock nonoa aa 11 6 5 When an input signal is lost oaa ee 12 7 Module status Light Emitting Diodes 12 el Ca
4. DAC SDI card to factory settings Remember to let some seconds pass by each time you power down to allow capacitors to be fully discharged Action Comment Power down Turn switch 8 on Power up DAC SDI enters a special state where the EEPROM is restored to factory default values This is flagged by the LED s they are all yellow Power down Turn switch 8 off If you want the DIP switches to be placed in the factory default position this is the time to do so Turn switches 1 through 9 to the off position Switch 10 should as always be turned to the on position Power up The card EEPROM is now reset to factory settings Network Electronics ASA P O Box 1020 N 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com a e iwork the innovator Technical specifications are subject to be changed without notice 14 DAC SDI Rev 1 Switch 6 Minimum delay mode Normally DAC SDI will buffer frames of the digital video input to be able to synchronize the output to the Black amp Burst input signal The delay of the signal through DAC SDI is then determined by the timing relationship between the Black amp Burst and SDI input In minimum delay mode DAC SDI synchronizes the internal clock to the SDI input clock The delay through the card is constant and minimized see section 4 Switch 6 on will acti
5. called for hdelay 0x522 10 7 Get and Set These commands are factory internal The end user should avoid these commands 11 Frame Delay The FRDLY connector at the back plane is used to output Frame Delay The lower pin is connected to GND When there exist an SDI input signal the upper pin at the connector will output a low pulse every 233 millisecond The pulse low time is equal to the delay of the signal through the DAC SDI card The low level of the signal is 0 V The high level of the signal is 5 V When DAC SDI is in minimum delay mode the Frame Delay output is disabled E mail support network electronics com Web http www network electronics com Network Electronics ASA P O Box 1020 N 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 m k all wSiwork Technical specifications are subject to be changed without notice 20 DAC SDI Rev 2 General environmental requirements for Network Electronics equipment 1 The equipment will meet the guaranteed performance specification under the following environmental conditions Operating room temperature range 0 C to 50 C Operating relative humidity range lt 90 non condensing 2 The equipment will operate without damage under the following environmental conditions Temperature range 10 C to 55 C Relative humidity range lt 95 non condensing network electronics com 21 DAC SDI Rev 2 Product Warranty The warra
6. eee 13 Method to restore the DAC SDI card to factory settings 14 Manual selection of video mode ooa aa ee 15 All commands available to the user o oo aaa ee 17 The info command broken up in components 0 000 000020004 18 Network Electronics ASA P O Box 1020 N 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com innovator Technical specifications are subject to be changed without notice 5 DAC SDI Rev 1 SDI In SDI receiver SDI m SDI Out amp reclocker driver VCXO gt G Y CVBS CVBS BBin gt CVBS video ar FPGA Video gt Analog E B U Luma Luma decoder Encoder Processing R V Chroma Chroma CVBS CVBS Y BB Frame Delay FPGA conf Framestore LED Microcontroller a RS422 memory Switches with EEPROM Figure 1 Simplified block diagram of the DAC SDI card 3 General The flashlink DAC SDI is a high quality 10 bit digital 4 2 2 to NTSC PAL composite component encoder 4 times 54 MHz oversampled analogue video converter Composite formats and component formats are simultaneously provided on the outputs On board genlock input frame buffer gt 8 fields and adjustable horizontal delay provide a pro grammable timing range relative to the incoming Black amp Burs
7. 0 Error full field ere 0 unk 0 ues 0 ida 0 E mail support network electronics com Web http www network electronics com Network Electronics ASA P O Box 1020 N 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 m k iwo AANO rK Technical specifications are subject to be changed without notice 17 DAC SDI Rev 1 idh 0 eda 0 edh 0 Error active video ere 0 unk 0 ues 0 ida 0 idh 0 eda 0 Table 6 The info command broken up in components Status of Status string Comment No SDI input SDI input is not detected SDI input SDI signal strength gt 90 Strong SDI signal SDI signal strength lt 10 Weak SDI signal SDI signal strength d d is a number from 10 to 90 Field 1 detected If field one of the original 8 field PAL 4 field NTSC is marked with a white line during conversion to SDI DAC SDI synchronizes the SDI data stream with the corresponding field of the Black amp Burst signal If field one is marked this line will be shown in addition to the signal strength information above No BBurst input No Black amp Burst detected Black amp Burst BBurst detected not locked DAC SDI is unable to synchronize the analog output to the detected Black amp Burst input The Black amp Burst signal may be out of DAC SDI s frequency range and BBurst detected and locked DAC SDI generate analog output Mindelay mode synchronized to t
8. 1 mounted at the rear of the sub rack See figure 2 5 1 Mounting the connector module If the connector module is purchased separately it should be mounted as described in the user manual for the sub rack frame FR 2RU 10 2 This manual is also available from our web site http www network electronics com 5 2 Correspondence of connectors and signals The analogue output BNC s are multipurpose Due to restricted space on the silk screen of the connector module these BNC s are only marked R B G and CVBS This marking corre sponds to the default settings of the DAC SDI see table 1 Some of the BNC s on the connector module are dedicated to a specific signal This is the case for SDI IN Carries incoming SDI BB Carries Black amp Burst SDI OUT SDN is buffered and output here In addition a 2 pin Sherlock MOLEX connector outputs the Frame Delay see section 11 Table 1 Relationship between the silkscreen marking of DAC SDI C1 and the video mode setting of DAC SDI For explanation of the switch settings see section 8 for explanation of the GYDA command strings see section 10 Switch Video mode Silkscreen marking anim api 3 2 GYDA command string Key B H CVBS 0 0 G B R CVBS G B R CVBS RGB and CVBS 0f 1 Y U V CVBS Y U Vv CVBS YUV and CVBS 1 0 CVBS Luma Chroma Y CVBS Luma Chroma Y S Video and CVBS 1 1 CVBS Luma Chroma BB CVBS Luma Chroma BB S Video CVBS and
9. CHphase LED will blink for approximately 2 seconds and then the EDH HDelay LED will blink for 2 seconds and so on This visual feedback determines whether Hdelay or SCHphase is to be adjusted Release the buttons while the FrameLock SCHphase LED is blinking Adjustment of Subcarrier phase relative to Horizontal sync The FrameLock SCHphase LED continues to blink to indicate that you may adjust the phase The phase is incremented and decremented in 256 steps A phase adjustment from 0 through 360 is thus available For calculations around 0 the single step size can be taken to be 1 41 The adjustment is made by way of the INC and DEC buttons When the maximum range is encountered the phase angle will wrap around During auto repeat the FrameLock SCHphase LED will light continuously Exiting adjustment of Subcarrier phase After a 6 seconds idle period the newly adjusted phase is committed to EEPROM and the adjust state is exited To set the horizontal delay Activate and Select between Hdelay and SCHphase Activate the button interface by pressing and holding both buttons Release the buttons while the EDH HDelay LED is blinking Adjustment of Horizontal delay The EDH HDelay LED will continue to blink to indicate that you may adjust the horizontal delay The horizontal delay is incremented and decremented in steps of 37 0 ns by way of the INC and DEC buttons 2048 such steps are available enabling a delay longer than one line for bot
10. Reset to factory default DAC SDI contains EEPROM that is affected by your choices Switch 8 is implemented to reset the EEPROM to factory default Its use is shown in table 3 Switch 7 PAL or NTSC initial output Switch 7 is only implemented to cater for two special situations Initial blank output If DAC SDI is powered but without Black amp Burst input and SDI input it needs to know whether the black output should be NTSC or PAL This is selected with switch 7 Switch 7 off sets NTSC while switch 7 on sets PAL Even in a situation where Black amp Burst input and SDI input are available the first few frames after power up will be blank while DAC SDI synchronizes the incoming SDI to the Black amp Burst during this time switch 7 setting applies Note that switch 7 does not have a GYDA equivalent command Color Bar generation To determine whether to use PAL or NTSC when outputting Color Bars DAC SDI examines the SDI input However the situation where no SDI input is available is one of the times you are likely to want to output Color Bars It must then be a way to inform DAC SDI whether to use PAL or NTSC Switch 7 off sets NTSC while switch 7 on sets PAL Switch 7 will always be overridden by the PAL NTSC detection from the SDI signal Even if the SDI signal source is removed the card will remember whether PAL or NTSC was used until the card is powered off Factory setting is switch 7 in off position Table 3 Method to restore the
11. Set outputs to CVBS LUMA CHROMA Y cvbs luma chroma bb No Set outputs to CVBS LUMA CHROMA BB color bar enable No Enable color bars color bar disable No Disable color bars color burst enable No Enable color burst color burst disable No Disable color burst chroma enable No Enable chroma chroma disable No Disable chroma vbib on No Set vertical blanking interval blanking on vbib off No Set vertical blanking interval blanking off hdelay 0xHHHH No Set the delay of outgoing video with respect to BB schphase 0xHH No Set the phase of the subcarrier with respect to horizontal sync get 0xHH Yes Get a value from a numbered register set 0xHH 0xHH No Set a value to a numbered register Table 5 All commands available to the user 10 1 The command According to the Flashlink protocol no card can use the RS422 bus before the hello command is sent the card at least once The response from DAC SDI will be xxxxDAC SDI PIC sw rev X X X FPGA sw rev X Protocol ver X X Here xxxx denotes the source and destination rack and slot coordinates while X represents a version number As of medio June 2002 these revisions would be xxxxDAC SDI PIC sw rev 1 0 11 FPGA sw rev 13 Protocol ver 1 0 10 2 The info command This command report the entire state of the card An example xxxxSDI signal strength 89 Field 1 detected BBurst detected and locked Output CVBS Luma Chroma Y PAL No EDH
12. b site http www network electronics com Please contact Network Electronics Customer Support for assistance with recycling if this site does not show the information you require Where it is not possible to return the product to Network Electronics or its agents for recycling the following general information may be of assistance Before attempting disassembly ensure the product is completely disconnected from power and signal connections All major parts are marked or labelled to show their material content Depending on the date of manufacture this product may contain lead in solder Some circuit boards may contain battery backed memory devices network electronics com 23 EC Declaration of Conformity MANUFACTURER AUTHORISED REPRESENTATIVE Established within the EEA MODEL NUMBER S DESCRIPTION DIRECTIVES this equipment complies with HARMONISED STANDARDS applied in order to verify compliance with Directive s TEST REPORTS ISSUED BY TECHNICAL CONSTRUCTION FILE NO YEAR WHICH THE CE MARK WAS AFFIXED TEST AUTHORIZED SIGNATORY MANUFACTURER Thomas hrbom Position Quality Manager authorised signature Network Electronics ASA P O Box 1020 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 Network Electronics ASA P B 1020 N 3204 SANDEFJORD Norway Not applicable DAC SDI network SDI to NTSC PAL Encoder Component Analogue Video Converter with Genlo
13. ck LVD 73 23 EEC EMC 89 336 EEC EN 55103 1 1996 EN 55103 2 1996 EN 60950 1 2006 Notified Competent Body Nemko Not applicable 2006 AUTHORISED REPRESENTATIVE Established within EEA Not applicable www network electronics com network network electronics com Enterprise No NO 976 584 201 MVA Report no 67639001 Date of Issue 2007 10 17 Place of Issue Sandefjord Norway
14. ctronics com nonovator Technical specifications are subject to be changed without notice 10 DAC SDI Rev 1 writes the data to the Frame store via an integrated SDRAM controller Data is fetched from the Frame store EDH is checked the data is transferred to the Video Encoder The Video Encoder outputs CVBS RGB etc The output is filtered externally for anti aliasing and correct offset and gain for the different standards and then output to the backplane 6 2 EEPROM The DAC SDI card actually has two EEPROM s A small EEPROM is included in the microcon troller while a larger external EEPROM holds the configuration memory of the FPGA Internal EEPROM State variables are written to EEPROM in the microcontroller each time a configuration change is made Basically the card remembers its setting between power downs External EEPROM The configuration memory of the FPGA is upgradeable This is however a task for qualified maintenance personnel 6 3 Power up sequence Summary The DAC SDI card remember the settings it had the last time it held power At power up the card performs a self check and initiation The manual mode switch is then sampled If manual mode is enabled the other switch settings are read and the state of the card set accordingly If manual mode is disabled the state the card held the previous time it was used is read from EEPROM The interplay between the EEPROM the switches and the GYDA or o
15. des 10 individual On Off switches The purpose of the switches is to offer you an easy interface to some features of the DAC SDI card without the need of a GYDA controller Table 2 gives the general layout of the switches The switches are numbered from 1 at the top and downwards to the bottom see figure 3 A switch is on when the tap is displaced in direction of the back plane The DAC SDI card is shipped with all switches except switch 10 in the Off position Switch number 10 should always be in the On position The switches are discussed in logical rather than numerical order Network Electronics ASA P O Box 1020 N 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com a e iwork the innovator Technical specifications are subject to be changed without notice 13 DAC SDI Rev 1 Switch 10 Programming mode Switch 10 is purely used for service upgrade of the DAC SDI card It should always be in the on position If switch 10 is in the off position the CardState LED will light up red and the DAC SDI card will enter programming mode This causes no harm but the card will not work in this mode Factory setting is switch 10 in on position Switch 9 Reserved This switch is reserved for future expansion and should always be in the off position Factory setting is switch 9 in off position Switch 8
16. g mode on off For factory use only Table 2 Summary of the DIP switches Switch 8 9 and 10 are mainly for factory use switch 7 has effect in some special situations switch 6 is used to set the card in minimum delay mode while switches 1 2 3 4 and 5 will be used when no GYDA controller is available 7 3 Frame Lock SCHphase No Light Frame Lock is disabled card is in minimum delay mode Red No Black amp Burst input Yellow Black amp Burst present but unable to lock Green Black amp Burst present locked During normal operation the status of the Black amp Burst input is shown on this LED During adjustments of the phase of the subcarrier relative to the horizontal sync in manual mode this LED is used as an indicator 7 4 EDH Hdelay No Light LED malfunction Red CRC error detected Yellow Not used Green No error detected During normal operation the result from the Error Detection and Handling circuit is shown on this LED If a Black amp Burst signal is plugged in this LED may blink red a few seconds while the DAC SDI synchronizes the output signal with the Black amp Burst signal During horizontal delay adjustments in manual mode this LED is used as an indicator 8 Switches Summary Most users will probably want switches 1 through 6 8 and 9 in the off position All users should place switch 10 in the on position The DAC SDI card implements a Dual Inline switch DIP switch that provi
17. h PAL and NTSC These buttons have an auto repeat function much like the way a normal keyboard works During auto repeat the EDH HDelay LED will light continuously Exiting adjustment of Horizontal delay When neither the INC nor the DEC button have been touched for 6 seconds the newly adjusted delay is committed to EEPROM memory and the adjust state is exited 10 Interface with GYDA or other controllers DAC SDI follows the Flashlink protocol see the definition of the protocol available from our web site http www network electronics com DAC SDI can also be used with any controller or controller system that adheres to the Flashlink protocol using the RS422 bus For more information on the electrical interconnect see the documentation of RS 2RU 10 2 The available commands are shown in table 5 This is contrary to the horizontal delay adjustment where the trimmable range can not be exceeded E mail support network electronics com Web http www network electronics com Network Electronics ASA P O Box 1020 N 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 m k E WoO AVVO rK Technical specifications are subject to be changed without notice 16 DAC SDI Rev 1 Command Response Comment Yes The Hello command info Yes Gives back the card state g b r cevbs No Set outputs to G B R CVBS y u v cvbs No Set outputs to Y U V CVBS cvbs luma chroma y No
18. he detected Black amp Burst input signal Mindelay mode DAC SDI is in minimum delay mode Black amp Burst synchronization is disabled and signal delay is minimized Analogue output Output lt videomode gt NTSC NTSC output See videomodes below Output lt videomode gt PAL PAL output See videomodes below Output Color Bar lt videomode gt NTSC Color Bar is enabled NTSC output Output Color Bar lt videomode gt PAL Color Bar is enabled PAL output Videomodes G B R CVBS Y U V CVBS CVBS LUMA CHROMA Y or CVBS LUMA CHROMA BB VBI Blanking VBIB on Information in the Vertical Blanking Interval will be blanked by DAC SDI No VBI status string DAC SDI let information in the Vertical Blanking Interval pass unchanged Colour Burst Color Burst disabled The colour burst is removed from analog output No Colour Burst status string Color burst is enabled Chroma Chroma disabled The chroma information is removed from analog output Result Black and white output No Chroma status string Chroma is enabled Continued on next page Network Electronics ASA P O Box 1020 N 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice innovat DAC SDI Rev 1 Con
19. nty terms and conditions for the product s covered by this manual follow the General Sales Conditions by Network Electronics ASA These conditions are available on the company web site of Network Electronics ASA www network electronics com network electronics com 22 DAC SDI Rev 2 Appendix A Materials declaration and recycling information A 1 Materials declaration For product sold into China after 1st March 2007 we comply with the Administrative Measure on the Control of Pollution by Electronic Information Products In the first stage of this legislation content of six hazardous materials has to be declared The table below shows the required information Toxic or hazardous substances and elements RER a K i ADE SRE SRAM Part Name Lead Mercury Cadmium Hexavalent Polybrominated Polybrominated Pb Hg Cd Chromium biphenyls diphenyl ethers Cr VI PBB PBDE DAC SDI O O O O O O O Indicates that this toxic or hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement in SJ T11363 2006 X Indicates that this toxic or hazardous substance contained in at least one of the homogeneous materials used for this part is above the limit requirement in SJ T11363 2006 This is indicated by the product marking e A 2 Recycling information Network Electronics provides assistance to customers and recyclers through our we
20. p to 5 75 MHz 3 us Open collector 5 V TTL Network Electronics ASA P O Box 1020 N 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com Technical specifications are subject to be changed without notice innovator DAC SDI Rev 1 e Processing performance Signal path 10 bits Sampling 54 MHz 4 times oversampling Video bandwidth 6 MHz Hue Accuracy 0 5 typical Colour Saturation Accuracy 0 8 typical Luminance Nonlinearity 0 6 typical Chroma AM Noise 58 dB typical Chroma PM Noise 72 dB typical SNR 70 dB typical Diff gain lt 1 Diff phase lt 1 e Other Input Voltage DC 5V DC 15V Power Consumption lt 4W Network Electronics ASA P O Box 1020 N 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com a e iwork the innovator Technical specifications are subject to be changed without notice 8 DAC SDI Rev 1 a Ne S fax 4 O N a 1 G G a electronics as Made in Norway aaiwork Figure 2 DAC SDI Cl1 connector module The BNC connector silkscreen marking shows the factory default setting of the analogue output RGB and CVBS figure not to scale 5 Connector module The DAC SDI has its own connector module DAC SDI C
21. rdi State s 2 6 de eee et Gy He ERE eS ee a B ae eee He 12 7 2 Signal State 2 6042 ae 4 be ea hee EE eee Gee eae eK a 12 7 3 Frame Lock SCHphase lt 40642 0 632 24 446 446 86650 44644 2 8 13 TA EDH Hdel y 240 56 3 00 4 6 8044468524056 5844 68 42RD GSS OS 13 8 Switches 13 9 Pushbuttons 15 9 1 r cc be ae RE OR a Re a Se A Se Bee 15 9 2 INC and DEC 2 9 6 6 os saa wR SO SA a ee ee ee Re ewe 16 10 Interface with GYDA or other controllers 16 10 1 The command se c 4 4 6 rat a ee RA eee ee ee ce Se a E 17 10 2 The info command aoaaa 17 10 3 Video mode commands aooaa a ee 19 10 4 Enable Disable commands 64 008 84 be RR ew ewe we 19 10 5 SCHphase command aoaaa ee 19 10 6 Hdelay command 2 ee 20 10 7 Get and Set pe poa kaoa p i a a eE ee ee 20 11 Frame Delay 20 12 Declaration of conformity with CE 21 13 General enviromental requirements 21 14 Notes 21 Email suppore ustwark electioules cam Web ketrs ewwastworeectioncacom SS a AIWO Technical specifications are subject to be changed without notice 4 DAC SDI Rev 1 List of Figures 1 2 3 Simplified block diagram of the DAC SDI card 0 0 0 6 DAC SDI C1 connector module silkscreen 2 2 2 ee 9 DAC SDI simplified silkscreen o oo a ee 10 List of Tables G L We A LA rR Silkscreen marking of DAC SDI C1 vs the video mode setting of DAC SDI 9 Summary of the DIP switches 2 2 0 0 0 0 0 0202 eee eee
22. s Factory setting is switch 5 in off position 9 Pushbuttons DAC SDI contains three pushbuttons 9 1 Reset The uppermost pushbutton is a reset switch see figure 3 It has the same effect as a power on Table 4 Manual selection of video mode Sw 3 Sw 2 Video mode Comment 0 0 G B R CVBS RGB and CVBS 0 1 Y U V CVBS YUV and CVBS 1 0 CVBS Luma Chroma Y S Video and CVBS 1 1 CVBS Luma Chroma BB S Video CVBS and Blank amp Burst Network Electronics ASA P O Box 1020 N 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 y 8 E mail support network electronics com Web http www network electronics com a G wor the innovator Technical specifications are subject to be changed without notice 15 DAC SDI Rev 1 9 2 INC and DEC Summary The delay of the outgoing video with reference to Black amp Burst may be ad justed The subcarrier phase delay with reference to the horizontal sync may be adjusted These two pushbuttons may be used to set the overall delay of the output with respect to the Black amp Burst and to set the phase delay between the subcarrier with respect to the horizontal sync The pushbuttons are seen in figure 3 To set the subcarrier phase delay Activate and Select between Hdelay and SCHphase Activate the buttons by pressing and holding both buttons While pressing the buttons observe the lowermost two LED s The FrameLock S
23. s disabled it is reported 10 3 Video mode commands The commands g b r cvbs y u v cvbs cvbs luma chroma y and cvbs luma chroma bb all determine the output mode of the card 10 4 Enable Disable commands Commands to enable and disable the internal colour bar generation chroma generation colour burst output and VBI blanking are all straight forward text see table 5 10 5 SCHphase command The subcarrier phase relative to the horizontal sync is set by calculating an 8 bit number Given that we want to set the SCHphase to a degrees The 8 bit number n is calculated by n a 1 41 An example Assume a SCHphase of 7 is needed The SCH phase is adjusted in steps of 1 41 so we calculate n 7 1 41 4 96 5 We adjust the SCH phase with 5 1 41 7 05 by writing the command schphase 0x5 Network Electronics ASA P O Box 1020 N 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 m k all Waiwork E mail support network electronics com Web http www network electronics com innovator Technical specifications are subject to be changed without notice 19 DAC SDI Rev 1 10 6 Hdelay command The output signals can be delayed with respect to the incoming Black amp Burst with 1024 steps of 37 ns To avoid signed numbers an offset of 0x400 is added to the transferred number An example Assume a horizontal delay of 290 steps is needed As 1024 290 1314 0x522 the following command is
24. t DAC SDI user parameters can be changed via switches on the unit or via the GYDA control interface With a stable Black amp Burst input the analogue output is synchronous with the reference When the generator of the SDI IN signal has a PAL Pulse embedded in line 7 the DAC SDI will synchronize to the correct 8 field PAL 4 field NTSC signal This is possible because the frame store can store more than 9 fields Network Electronics ASA P O Box 1020 N 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 m k al Waiwork E mail support network electronics com Web http www network electronics com innovator Technical specifications are subject to be changed without notice 6 DAC SDI Rev 1 4 Specifications e Digital Serial Input Input format Input level Equalization Return loss e Black amp Burst input Input signal Return loss Digital Serial Output Output format Output level Return loss Output formats Output level Return loss Minimum signal delay e Frame Delay output Output level 270 Mb s scrambled NRZI 4 2 2 SMPTE 259M C 800 mV nominal 75 Q terminated Automatic up to 35 dB 300m Belden 8281 gt 15dB 75 terminated SMPTE 170M PAL ITU 624 4 gt 35dB up to 5 75 MHz 270 Mb s scrambled NRZI 800 mV nominal gt 15dB Analogue output both PAL 625 50 and NTSC 525 60 CVBS RGB YUV Y C S video 1000 mV nominal 10mV gt 35dB u
25. ther controller adhere to the following simple rules e If a GYDA controller is present in a system it can always override manual settings e If the manual mode is used together with a GYDA controller the DAC SDI will initiate as determined by the switches and may then be overridden by the controller e If the manual mode is not used the DAC SDI will initiate as determined by the state of the EEPROM It is subsequently controlled by the GYDA controller e At any time when a state change is done whether it be by switches pushbuttons or GYDA the state is stored in the EEPROM as soon as it is detected Note that switch 6 7 8 and 10 are not part of manual mode 6 4 Clocks and genlock DAC SDI contains a VCXO Voltage Controlled Oscillator that generates clocks for the most of the card As a simplification we can assume that a clock iclk is maintained The internal clock iclk of the DAC SDI will either lock to the Black amp Burst clock to the clock derived from the incoming SDI signal or be freerunning The rules are simple 1 If Black amp Burst is available iclk will lock to it 2 If Black amp Burst is unavailable but SDI input is present iclk will lock to a clock derived from the SDI input Network Electronics ASA P O Box 1020 N 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com a e iwork the inno
26. ting Diodes LED s that show the state of the card The LED s are visible through the front panel of the rack see the user manual of FR 2RU 10 2 for details The LED s are described top down see also figure 3 7 1 Card State No Light No power fuse F1 blown LED malfunction or configuration memory lost Red A fundamental probably electrical error has been detected The card is set in a passive state so that it does not disturb other cards in the rack While powering on the CardState LED will light red for approximately 0 5 s while the card undergoes self test Yellow Not used Green DAC SDI is powered and ready 7 2 Signal State No Light LED malfunction Red No SDI input Yellow Weak SDI input Green SDI input Network Electronics ASA P O Box 1020 N 3204 Sandefjord Norway Tel 47 33 48 99 99 Fax 47 33 48 99 98 E mail support network electronics com Web http www network electronics com a e iwork the innovator Technical specifications are subject to be changed without notice 12 DAC SDI Rev 1 Switch Function Comment 1 Manual mode on off When on enables switches 2 3 4 and 5 2 Video mode select 1 7 3 Video mode select 2 guanin 4 VBIB on off 5 Color bar on off 6 Min delay mode on off When on Black amp Burst input is ignored 7 NTSC PAL default For color bar NTSC PAL select only 8 Factory Reset on off To restore internal EEPROM only 9 Reserved 10 Runnin
27. tinued from previous page Status of Status string Comment No EDH d Count fields where EDH is absent Error full field Label to present next 7 lines as full field error counters crc d crc error unk d unknown status ues d unknown error status ida d internal error detected already idh d internal error detected here EDH eda d error detected already edh d error detected here Error active video Label to present next 7 lines as active video error counters crc d crc error unk d unknown status ues d unknown error status ida d internal error detected already idh d internal error detected here eda d error detected already edh d error detected here d is a decimal number from 0 to 65535 for all the 15 EDH counters above HDelay and HDelay Rrrr SCHPhase rr rrr is a hexadecimal number a from SCHPhase 0 to Ox7FF The number of 37 ns steps the output is delayed with respect to the Black amp Burst is a 02400 Etr is a hexadecimal number from 0 to OxFF The phase adjustment of the subcarrier with reference to the horizontal sync averages 7 1 40625 edh 0 HDelay 0x0400 SCHPase 0x00 The info command is composed by many minor lines fully specified in table 6 In general when a condition is normal it is not reported For instance colour burst will normally be enabled it is only when it i
28. vate the minimum delay mode Factory setting is switch 6 in off position Switch 1 Manual mode Switch 1 is the manual mode switch If on the DAC SDI is primarily assumed to be operated with switches alone If off The DAC SDI is assumed to be used with a GYDA controller Factory setting is switch 1 in off position With switch 1 off While in automatic mode switches 2 3 4 and 5 are without any effect With switch 1 on In manual mode the functionality of switches 2 3 4 and 5 is as follows Switches 2 and 3 These two switches determine the output video standard See table 4 Factory setting is switch 2 and switch 3 off Switch 4 Switch 4 turns on off deletion of information in the vertical blanking interval VBI With switch 4 off the VBI information is retained with switch 4 on VBI is cleared Switch 5 With switch 5 on DAC SDI generates color bars This replaces the SDI input How ever the SDI input will determine whether NTSC or PAL is to be output See also the description of switch 7 above The color bar configuration is 100 7 5 75 7 5 for NTSC and 100 0 75 0 for PAL The frequency of the output is locked to the Black amp Burst input If no Black amp Burst is input the output frequency is derived from an on card crystal with limited accuracy see section 6 5 The color bar output will not genlock to the Black amp Burst input it merely uses the frequency information With switch 5 off DAC SDI does not generate color bar
29. vator Technical specifications are subject to be changed without notice 11 DAC SDI Rev 1 3 If neither Black amp Burst nor SDI input is available iclk will be nominally 27 MHz generated from an on board crystal The internal crystal is not a high precision clock To adhere to the stringent demands of professional video either Black amp Burst or SDI input must be available 6 5 When an input signal is lost If SDI input disappears Given that stable SDI input and Black amp Burst exists If the SDI input disappears the picture will freeze Note that synchronization to correct 8 PAL field is inhibited in this freeze situation When the SDI input disappears the Frame Delay pulses at the back plane will also disappear If DAC SDI is in minimum delay mode the analog output will be turned off if the SDI input disappears because the frame buffer is unused If Black amp Burst disappears Given that stable SDI input and Black amp Burst exists If the Black amp Burst disappears the SDI input will be output as if nothing has happened However the internal clock will now be locked to the SDI input clock If both inputs disappear The picture will freeze and the clock will lock to the on board crystal This is not a reference clock and drift out of video specification can not be precluded 7 Module status Light Emitting Diodes Summary Green LED s are good all others are bad DAC SDI implements four Light Emit

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