GS2972 Datasheet, PDF (7/125 Pages) Semtech Corporation – 3G/HD/SD-SDI Serializer with Complete SMPTE Audio & Video Support

5. Application Reference Design ............................................................................................................. 120
5.1 Typical Application Circuit ......................................................................................................120
6. References & Relevant Standards ....................................................................................................... 121
7. Package & Ordering Information ........................................................................................................ 122
7.1 Package Dimensions ................................................................................................................... 122
7.2 Packaging Data ............................................................................................................................. 123
7.3 Marking Diagram ......................................................................................................................... 123
7.4 Solder Reflow Profiles ................................................................................................................ 124
7.5 Ordering Information ................................................................................................................. 124
List of Figures
Figure 1-1: Pin Assignment ......................................................................................................................... 10
Figure 3-1: Differential Output Stage (SDO/SDO) .............................................................................. 26
Figure 3-2: Digital Input Pin ........................................................................................................................ 26
Figure 3-3: Digital Input Pin with Schmitt Trigger (RESET) .............................................................. 26
Figure 3-4: Digital Input Pin with weak pull-down - maximum pull-down current ............... 27
Figure 3-5: Digital Input Pin with weak pull-up - maximum pull-up current ........................... 27
Figure 3-6: Bidirectional Digital Input/Output Pin with programmable drive strength......... 27
Figure 3-7: Bidirectional Digital Input/Output Pin with programmable drive strength......... 28
Figure 3-8: VBG .............................................................................................................................................. 28
Figure 3-9: Loop Filter .................................................................................................................................. 29
Figure 4-1: GS2972 Video Host Interface Timing Diagrams ............................................................ 31
Figure 4-2: H:V:F Output Timing - 3G Level A and HDTV 20-bit Mode ...................................... 36
Figure 4-3: H:V:F Output Timing - 3G Level A and HDTV 10-bit Mode
3G Level B 20-bit Mode, each 10-bit stream ......................................................................................... 36
Figure 4-4: H:V:F Output Timing - 3G Level B 10-bit Mode ............................................................. 36
Figure 4-5: H:V:F Input Timing - HD 20-bit Input Mode ................................................................... 36
Figure 4-6: H:V:F Input Timing - HD 10-bit Input Mode ................................................................... 37
Figure 4-7: H:V:F Input Timing - SD 20-bit Mode ............................................................................... 37
Figure 4-8: H:V:F Input Timing - SD 10-bit Mode ............................................................................... 37
Figure 4-9: H:V:DE Input Timing 1280 x 720p @ 59.94/60 (Format 4) ........................................ 39
Figure 4-10: H:V:DE Input Timing 1920 x 1080i @ 59.94/60 (Format 5) ..................................... 39
Figure 4-11: H:V:DE Input Timing 720 (1440) x 480i @ 59.94/60 (Format 6&7) ....................... 40
Figure 4-12: H:V:DE Input Timing 1280 x 720p @ 50 (Format 19) ................................................ 40
Figure 4-13: H:V:DE Input Timing 1920 x 1080i @ 50 (Format 20) ............................................... 41
Figure 4-14: H:V:DE Input Timing 720 (1440) x 576 @ 50 (Format 21&22) ................................ 41
Figure 4-15: H:V:DE Input Timing 1920 x 1080p @ 59.94/60 (Format 16) ................................. 42
Figure 4-16: H:V:DE Input Timing 1920 x 1080p @ 50 (Format 31) .............................................. 42
Figure 4-17: H:V:DE Input Timing 1920 x 1080p @ 23.94/24 (Format 32) ................................. 42
Figure 4-18: H:V:DE Input Timing 1920 x 1080p @ 25 (Format 33) .............................................. 43
Figure 4-19: H:V:DE Input Timing 1920 x 1080p @ 29.97/30 (Format 34) ................................. 43
Figure 4-20: ACLK to Data and Control Signal Input Timing .......................................................... 46
Figure 4-21: I²S Audio Input Format ....................................................................................................... 47
Figure 4-22: AES/EBU Audio Input Format .......................................................................................... 48
Figure 4-23: Serial Audio, Left Justified, MSB First ............................................................................. 48
Figure 4-24: Serial Audio, Left Justified, LSB First .............................................................................. 48
Figure 4-25: Serial Audio, Right Justified, MSB First .......................................................................... 48
Figure 4-26: Serial Audio, Right Justified, LSB First ........................................................................... 48
Figure 4-27: Ancillary Data Packet Placement Example for SD Mode ........................................ 52
Figure 4-28: ORL Matching Network, BNC and Coaxial Cable Connection ............................... 84
GS2972 3G/HD/SD-SDI Serializer with Complete
SMPTE Audio & Video Support
Final Data Sheet Rev. 9
GENDOC-047479 September 2013
www.semtech.com
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