Singmai Electronics SM08 User Manual Download

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SingMai Electronics

SM08 User Manual Revision 0.2

Page 1 of 36

SM08

Advanced Composite Video Interface:

aCVi to HD-SDI converter

module

User Manual

Revision 0.2

July 2016

Summary of Contents for SM08

Page 1: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 1 of 36 SM08 Advanced Composite Video Interface aCVi to HD SDI converter module User Manual Revision 0 2 23rd July 2016 ...

Page 2: ...on 0 2 Page 2 of 36 Revision History Date Revisions Version 11 07 2016 First Draft 0 1 23 07 2016 Added chapter on the test points Added comment on the Quartus version Added 720p 25Hz 30Hz standards to aCVi description Specifications updated 0 2 ...

Page 3: ...re 4 aCVi Spectrum 9 Figure 5 SM08 schematics sheet 1 12 Figure 6 SM08 schematics sheet 2 13 Figure 7 SM08 schematics sheet 3 14 Figure 8 SM08 schematics sheet 4 15 Figure 9 SM08 schematics sheet 5 16 Figure 10 SM08 schematics sheet 6 17 Figure 11 SM08 schematics sheet 7 18 Figure 12 SM08 schematics sheet 8 19 Figure 13 SM08 schematics sheet 9 20 Figure 14 Re programming the SM08 21 Figure 15 Quar...

Page 4: ...vision 0 2 Page 4 of 36 Figure 27 PAL 5 75MHz frequency sweep 29 Figure 28 SM08 PCB overlay top side 30 Figure 29 SM08 PCB overlay bottom side 31 Figure 30 AC DC adaptor specification Page 1 35 Figure 31 AC DC adaptor specification Page 2 36 ...

Page 5: ...ting coaxial or twisted pair cable networks or allow the use of less expensive RG 59 UTP cable in long distance installations SM08 can accept either twisted pair or coaxial cable inputs build option and supports the following HD aCVi formats 720p 25 30 50 59 60Hz 1080p 24 25 29 30Hz 1080i 50 59 60Hz as well as NTSC M PAL and NTSC 960H and PAL 960H video standards Switching between SD and HD format...

Page 6: ...ld be connected to a compatible monitor or waveform monitor Note some aCVi supported standards such as 720p 25Hz and 720p 30Hz may not be accepted by all HD SDI receivers Figure 2 SM08 Component positions SM08 can accept aCVI NTSC M PAL or NTSC 960H PAL 960H formats Switching between these various formats is manual using switches as shown in Figure 3 and Table 1 Switch 2 Switch 1 Format ON ON aCVI...

Page 7: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 7 of 36 Figure 3 SM06 Switches Switches 1 5 shown ON ...

Page 8: ...ent to cause image artifacts The effective bandwidth of the complete signal is therefore approximately 9 3MHz chroma upper sideband filter roll off 27 8MHz or about 37MHz setting a minimum sampling frequency of 2 x 37MHz or 74MHz For convenience we choose 74 25MHz as a sampling frequency as this is related to the SMPTE272M standard see Figure 4 For transmission over 300m of RG 59 cable we can expe...

Page 9: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 9 of 36 Figure 4 aCVi Spectrum ...

Page 10: ...Blaster and the Quartus Programmer see Chapter 5 Sheet 5 The PT51 decoder requires a line locked clock see PT51 user manual chapter 6 To achieve this a voltage controlled crystal oscillator is used with the frequency of the oscillator controlled using a PWM output from the PT51 IP core This output VCO_PWM is filtered by R11 and C32 to provide an analogue voltage which is buffered by U7 This 0 3 3V...

Page 11: ...into U12A which is a high input impedance low input bias current op amp The average DC level of video varies widely and to ensure it can be scaled into the analogue to digital converter ADC properly it must be clamped The AFE uses a sync tip clamp The most negative part of the AC coupled video is clamped to the VCLAMP reference voltage which is the most negative voltage reference voltage of the AD...

Page 12: ...data streams at 148 5MHz 27MHz which are driven as LVDS outputs together with an LVDS clock to the HD SDI SDI serialiser IC U17 which converts these five data signals into one 1 485GHz 270MHz HD SDI SDI compatible output J4 Components L5 and R61 are used to improve the return loss Figure 5 SM08 schematics sheet 1 ...

Page 13: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 13 of 36 Figure 6 SM08 schematics sheet 2 ...

Page 14: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 14 of 36 Figure 7 SM08 schematics sheet 3 ...

Page 15: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 15 of 36 Figure 8 SM08 schematics sheet 4 ...

Page 16: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 16 of 36 Figure 9 SM08 schematics sheet 5 ...

Page 17: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 17 of 36 Figure 10 SM08 schematics sheet 6 ...

Page 18: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 18 of 36 Figure 11 SM08 schematics sheet 7 ...

Page 19: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 19 of 36 Figure 12 SM08 schematics sheet 8 ...

Page 20: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 20 of 36 Figure 13 SM08 schematics sheet 9 ...

Page 21: ...ter 10 way header plugs into J2 the 10W header on the SM06 The header is polarized to ensure the cable cannot be inserted the wrong way see Figure 14 Figure 14 Re programming the SM08 Install and open the Quartus programmer The screen should look similar to Figure 15 The new FPGA image will be sent as a file called SM08 pof Set the programming mode to Active Serial Programming If everything is OK ...

Page 22: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 22 of 36 Figure 15 Quartus FPGA programmer ...

Page 23: ...decoder IP core The location of the test points TP2 and TP3 is shown in Figure 16 Figure 16 SM08 Test point location By default they are programmed to monitor the horizontal and vertical sync pulses from the PT51 decoder Figure 17 shows the horizontal sync output TP3 and the aCVi input waveform for 720p 60Hz standard and a 75 colour bar test signal Figure 17 Horizontal sync test output ...

Page 24: ...ics SM08 User Manual Revision 0 2 Page 24 of 36 Figure 18 shows the vertical field sync output TP2 and the aCVi input waveform for 720p 60Hz standard and a 75 colour bar test signal Figure 18 Vertical sync test output ...

Page 25: ...080p 25Hz 1080p 29 97Hz 1080p 30Hz 1080i 50Hz 1080i 59 94Hz 1080i 60Hz SD NTSC M PAL NTSC 960H and PAL 960H Luma bandwidth aCVi 29 7MHz 1 5dB 40dB 37 125MHz SD 5 5MHz 1 5dB 8MHz 1 5dB 960H Chroma bandwidth aCVi 7 5MHz 3dB 40dB 9 3MHz SD 1 3MHz 3dB Latency 100µs Gain control range 3 to 20dB HD SDI SDI output 20 bit 4 2 2 YCbCr format The following measurements were made using a SingMai SM01 video p...

Page 26: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 26 of 36 Figure 20 NTSC 75 colour bars vectors Figure 21 NTSC SDI status display ...

Page 27: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 27 of 36 Figure 22 PAL 75 colour bars waveform Figure 23 PAL 75 colour bars vectors ...

Page 28: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 28 of 36 Figure 24 PAL 75 colour bars lightning Figure 25 PAL CCIR17 waveform ...

Page 29: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 29 of 36 Figure 26 PAL 2T pulse Figure 27 PAL 5 75MHz frequency sweep ...

Page 30: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 30 of 36 Appendix A PCB Overlay Figure 28 SM08 PCB overlay top side ...

Page 31: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 31 of 36 Figure 29 SM08 PCB overlay bottom side ...

Page 32: ...1 Digi Key 478 1215 1 ND AVX Corporation C61 C62 CAP CER 10PF 50V 5 NP0 0603 2 Digi Key 478 1163 1 ND AVX Corporation C75 CAP TANT 22UF 10V 20 0805 1 Digi Key 478 3117 2 ND AVX Corporation C82 C83 CAP CER 4 7UF 6 3V 10 X5R 0603 2 Digi Key 478 5009 1 ND AVX Corporation D1 DIODE SCHOTTKY 40V 3A SMB 1 Digi Key B340LB FDICT ND Diodes Inc D2 DIODE ZENER 7 5V 5W DO214AA 1 Digi Key SMBJ5343B TPMSCT ND Mi...

Page 33: ...D 6 Digi Key 541 75 0HCT ND Vishay Dale R27 RES 470 OHM 1 10W 1 0603 SMD 1 Digi Key 541 470HCT ND Vishay Dale R28 R29 RES 47 0K OHM 1 10W 1 0603 SMD 2 Digi Key 541 47 0KHCT ND Vishay Dale R34 RES 300 OHM 1 10W 1 0603 SMD 1 Digi Key 541 300HCT ND Vishay Dale R35 RES 100 OHM 1 10W 1 0603 SMD 1 Digi Key 541 100HCT ND Vishay Dale R37 RES 330 OHM 1 10W 1 0603 SMD 1 Digi Key 541 330HCT ND Vishay Dale R4...

Page 34: ... Analog Devices U11 IC AMP VGA LOW NOISE 8 LFCSP 1 ExcelPoint AD8337BCPZ REEL7 Analog Devices U13 IC OPAMP VFB 80MHZ RRO 8SOIC 1 Digi Key AD8032ARZ REEL7CT ND Analog Devices U14 IC REG LDO 1A PREC 3 0V SOT 223 1 ExcelPoint ADP3338AKCZ 3 RL7CT ND Analog Devices U15 IC SCHMITT TRIG INV SOT 23 5 1 Digi Key 296 11607 1 ND Texas Instruments U16 IC OPAMP VFB 320MHZ RRO SOT23 6 1 ExcelPoint AD8063ARTZ RE...

Page 35: ...ai Electronics SM08 User Manual Revision 0 2 Page 35 of 36 Appendix C AC DC adaptor The specification for the supplied AC DC adaptor is shown in Figures 30 and 31 Figure 30 AC DC adaptor specification Page 1 ...

Page 36: ...SingMai Electronics SM08 User Manual Revision 0 2 Page 36 of 36 Figure 31 AC DC adaptor specification Page 2 ...

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