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SingMai Electronics

SB10 User Manual Revision 0.1

Page 7 of 29

3.

Data Transfers

TBD.

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Содержание SB10

Страница 1: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 1 of 29 SB10 NTSC PAL Video Decoder PT4 IP Core evaluation board User Manual Revision 0 1 23rd September 2017 ...

Страница 2: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 2 of 29 Revision History Date Revisions Version 23 09 2017 First Draft 0 1 ...

Страница 3: ...re 8 SB10 schematics Sheet 6 15 Figure 9 SB10 schematics Sheet 7 16 Figure 10 SB10 schematics Sheet 8 17 Figure 11 SB10 schematics Sheet 9 18 Figure 12 SB10 schematics Sheet 10 19 Figure 13 SB10 schematics Sheet 11 20 Figure 14 Re programming the SB10 21 Figure 15 Quartus FPGA programmer 22 Figure 16 NTSC 75 colour bars waveform 23 Figure 17 NTSC 75 colour bars vectors 24 Figure 18 NTSC SDI status...

Страница 4: ...d coaxial formats The video is amplified clamped and converted to digital video using a 10 bit ADC clocked at 54MHz An Altera FPGA is programmed with the PT4 video decoder which performs high quality line comb decoding of the video input Both lock modes of the PT4 are supported the voltage controlled oscillator VCO mode and the fast direct digital synthesis DDS mode The BT656 output of the PT4 dri...

Страница 5: ...pes twisted pair or coaxial it is necessary to change some link headers see Figure 2 There are two 3 pin headers that select the video input source J6 and a voltage reference J7 For coaxial inputs each connector should be linked pin 1 to pin 2 for UTP cable pin 2 and pin 3 should be linked Pull off the small pin header and place over the pins you require for your cable type Connector J8 should be ...

Страница 6: ...s two lock modes and both are supported by the SB10 board The first is to use a voltage controlled oscillator This mode is selected by linking pins 2 and 3 of the header J10 To select the DDS clock mode links pins 1 and 2 of J10 For a description of the two modes see the Technical Description below sheets 7 and 8 ...

Страница 7: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 7 of 29 3 Data Transfers TBD ...

Страница 8: ...es them to an internal reference this amplifier compensates for any loss in the input signal U25 is not used in this application The output of U10 is AC coupled into U11A 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 t...

Страница 9: ... PT13 generated data stream and the calculated checksum from U7 is compared with an FPGA internally generated checksum If the two do not match the SB10 module is shut down This means that even if the bit stream of the FPGA EEPROM is captured the SB10 will not run without U7 being fitted U17 is an RS232 level translator The RS232 data interface is described in Chapter 3 X2 provides a fixed 27MHz cl...

Страница 10: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 10 of 29 Figure 3 SB10 schematics Sheet 1 ...

Страница 11: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 11 of 29 Figure 4 SB10 schematics Sheet 2 ...

Страница 12: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 12 of 29 Figure 5 SB10 schematics Sheet 3 ...

Страница 13: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 13 of 29 Figure 6 SB10 schematics Sheet 4 ...

Страница 14: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 14 of 29 Figure 7 SB10 schematics Sheet 5 ...

Страница 15: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 15 of 29 Figure 8 SB10 schematics Sheet 6 ...

Страница 16: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 16 of 29 Figure 9 SB10 schematics Sheet 7 ...

Страница 17: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 17 of 29 Figure 10 SB10 schematics Sheet 8 ...

Страница 18: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 18 of 29 Figure 11 SB10 schematics Sheet 9 ...

Страница 19: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 19 of 29 Figure 12 SB10 schematics Sheet 10 ...

Страница 20: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 20 of 29 Figure 13 SB10 schematics Sheet 11 ...

Страница 21: ...USB Blaster 10 way header plugs into J4 the 10W header on the SB10 The header is polarized to ensure the cable cannot be inserted the wrong way see Figure 14 Figure 14 Re programming the SB10 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 SB10 pof Set the programming mode to Active Serial Programming If everythin...

Страница 22: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 22 of 29 Figure 15 Quartus FPGA programmer ...

Страница 23: ...C M PAL Luma bandwidth 6 75MHz 1 5dB Anti aliasing filter bypassed Chroma bandwidth 1 3MHz 3dB Latency 100µs Gain control range 3 to 18dB HDMI 10 bit 4 2 2 YCbCr format 525i NTSC or 625i PAL The following NTSC PAL measurements were made using a Tektronix video pattern generator the SB10 evaluation board and a Tektronix WFM700 SDI waveform monitor via a Blackmagic HDMI to SDI converter Figure 16 NT...

Страница 24: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 24 of 29 Figure 17 NTSC 75 colour bars vectors Figure 18 NTSC SDI status display ...

Страница 25: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 25 of 29 Figure 19 PAL 75 colour bars waveform Figure 20 PAL 75 colour bars vectors ...

Страница 26: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 26 of 29 Figure 21 PAL 75 colour bars lightning Figure 22 PAL CCIR17 waveform ...

Страница 27: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 27 of 29 Figure 23 PAL 2T pulse Figure 24 PAL 5 75MHz frequency sweep ...

Страница 28: ...ai Electronics SB10 User Manual Revision 0 1 Page 28 of 29 Appendix A AC DC adaptor The specification for the supplied AC DC adaptor is shown in Figures 25 and 26 Figure 25 AC DC adaptor specification Page 1 ...

Страница 29: ...SingMai Electronics SB10 User Manual Revision 0 1 Page 29 of 29 Figure 26 AC DC adaptor specification Page 2 ...

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