GS1672 datasheet(7/116 Pages) SEMTECH

7 / 116 page

GS1672 HD/SD-SDI Serializer with Complete SMPTE

Audio & Video Support

Data Sheet

53623 - 6

July 2011

7 of 116

List of Figures

Figure 3-1: Differential Output Stage....................................................................................................... 22

Figure 3-2: Digital Input Pin ........................................................................................................................ 22

Figure 3-3: Digital Input Pin with Schmitt Trigger............................................................................... 23

Figure 3-4: Digital Input Pin with weak pull-down - maximum pull-down current ............... 23

Figure 3-5: Digital Input Pin with weak pull-up - maximum pull-up current ........................... 24

Figure 3-6: Bidirectional Digital Input/Output Pin with programmable drive strength......... 24

Figure 3-7: Bidirectional Digital Input/Output Pin with programmable drive strength......... 25

Figure 3-8: VBG .............................................................................................................................................. 25

Figure 3-9: Loop Filter .................................................................................................................................. 26

Figure 4-1: GS1672 Video Host Interface Timing Diagrams ............................................................ 28

Figure 4-2: H:V:F Input Timing - HD 20-bit Input Mode ................................................................... 32

Figure 4-3: H:V:F Input Timing - HD 10-bit Input Mode ................................................................... 32

Figure 4-4: H:V:F Input Timing - SD 20-bit Mode ............................................................................... 32

Figure 4-5: H:V:F Input Timing - SD 10-bit Mode ............................................................................... 33

Figure 4-6: H:V:DE Input Timing 1280 x 720p @ 59.94/60 (Format 4) ........................................ 34

Figure 4-7: H:V:DE Input Timing 1920 x 1080i @ 59.94/60 (Format 5) ....................................... 35

Figure 4-8: H:V:DE Input Timing 720 (1440) x 480i @ 59.94/60 (Format 6&7) .......................... 36

Figure 4-9: H:V:DE Input Timing 1280 x 720p @ 50 (Format 19) .................................................. 36

Figure 4-10: H:V:DE Input Timing 1920 x 1080i @ 50 (Format 20) ............................................... 37

Figure 4-11: H:V:DE Input Timing 720 (1440) x 576 @ 50 (Format 21&22) ................................ 38

Figure 4-12: H:V:DE Input Timing 1920 x 1080p @ 23.94/24 (Format 32) ................................. 38

Figure 4-13: H:V:DE Input Timing 1920 x 1080p @ 25 (Format 33) .............................................. 39

Figure 4-14: H:V:DE Input Timing 1920 x 1080p @ 29.97/30 (Format 34) ................................. 39

Figure 4-15: ACLK to Data and Control Signal Input Timing .......................................................... 42

Figure 4-16: I2S Audio Input Format ....................................................................................................... 44

Figure 4-17: AES/EBU Audio Input Format .......................................................................................... 44

Figure 4-18: Serial Audio, Left Justified, MSB First ............................................................................. 44

Figure 4-19: Serial Audio, Left Justified, LSB First .............................................................................. 44

Figure 4-20: Serial Audio, Right Justified, MSB First ..........................................................................44

Figure 4-21: Serial Audio, Right Justified, LSB First ........................................................................... 45

Figure 4-22: Ancillary Data Packet Placement Example for SD Mode ........................................ 47

Figure 4-23: ORL Matching Network, BNC and Coaxial Cable Connection ............................... 73

Figure 4-24: GSPI Application Interface Connection ........................................................................ 75

Figure 4-25: Command Word Format ..................................................................................................... 76

Figure 4-26: Data Word Format ................................................................................................................ 77

Figure 4-27: Write Mode .............................................................................................................................. 77

Figure 4-28: Read Mode ............................................................................................................................... 77

Figure 4-29: GSPI Time Delay .................................................................................................................... 78

Figure 4-30: Reset Pulse .............................................................................................................................110

Figure 7-1: Pb-free Solder Reflow Profile ............................................................................................115

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