Singmai Electronics SM20 User Manual

Singmai Electronics SM20 User Manual

3g-/hd-/sdi distribution amplifier

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SM20
3G-/HD-/SDI
Distribution Amplifier
User Manual
Revision 0.1
st
1
November 2022
SM20 User Manual Revision 0.1
Page 1 of 11

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Summary of Contents for Singmai Electronics SM20

  • Page 1 SM20 3G-/HD-/SDI Distribution Amplifier User Manual Revision 0.1 November 2022 SM20 User Manual Revision 0.1 Page 1 of 11...
  • Page 2: Revisions

    Revisions Date Revisions Version 01-11-2022 First draft SM20 User Manual Revision 0.1 Page 2 of 11...
  • Page 3: Table Of Contents

    Appendix A: AC-DC adaptor ........................9 Figures Figure 1 SM20 Connections........................5 Figure 2 SM20 Block diagram........................6 Figure 3 SDI waveform..........................6 Figure 4 SDI jitter............................7 Figure 5 Power supply specification – Page 1................... 9 Figure 6 Power supply specification –...
  • Page 4: Introduction

    1. Introduction SM20 is a serial digital interface (SDI) distribution amplifier module supporting 3G-SDI, HD-SDI and SDI standards. The SDI input is equalized and re-clocked to provide four buffered outputs. SM20 requires 5VDC which is provided via the supplied AC-DC converter.
  • Page 5: Quick Start Guide

    Connect the 5VDC jack from the adaptor to the +5VDC ‘Power in’ socket on the SM20. Connect an SDI video input to the ‘SDI In’ BNC – SM20 supports SMPTE 259M, SMPTE 292M, SMPTE 296M, SMPTE 372M and SMPTE 425M standards. Any or all of the four ‘SDI Out’ BNCs may be connected.
  • Page 6: Sm20 Technical Details

    The +5VDC from the AC/DC power adaptor is filtered and protected from over-range or reverse polarity inputs by a resettable fuse. This fuse will protect the SM20 until the out-of-range condition is removed when it automatically reset itself. The 5VDC input is then regulated to provide a ‘clean’...
  • Page 7: Figure 4 Sdi Jitter

    Figure 4 SDI jitter. SM20 User Manual Revision 0.1 Page 7 of 11...
  • Page 8: Specification

    160mm x 78mm x 27mm. Video input: Supports SMPTE 259M, SMPTE 292M, SMPTE 296M, SMPTE 372M and SMPTE 425M standards. Input return loss: TBA. Output level: 800mV pk-pk. Operating temperature: -10 – 40 degC. SM20 User Manual Revision 0.1 Page 8 of 11...
  • Page 9: Appendix A: Ac-Dc Adaptor

    Appendix A: AC-DC adaptor The specification for the supplied AC-DC adaptor is shown in Figures 5-7. Figure 5 Power supply specification – Page 1. SM20 User Manual Revision 0.1 Page 9 of 11...
  • Page 10: Figure 6 Power Supply Specification

    Figure 6 Power supply specification – Page 2. SM20 User Manual Revision 0.1 Page 10 of 11...
  • Page 11: Figure 7 Power Supply Specification

    Figure 7 Power supply specification – Page 3. SM20 User Manual Revision 0.1 Page 11 of 11...

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