GS2972 datasheet(8/125 Pages) SEMTECH

8 / 125 page

GS2972 3G/HD/SD-SDI Serializer with Complete

SMPTE Audio & Video Support

Final Data Sheet

Rev. 9

GENDOC-047479

September 2013

8 of 125

www.semtech.com

Figure 4-29: GSPI Application Interface Connection ........................................................................ 87

Figure 4-30: Command Word Format ..................................................................................................... 88

Figure 4-31: Data Word Format ................................................................................................................ 88

Figure 4-32: Write Mode .............................................................................................................................. 89

Figure 4-33: Read Mode ............................................................................................................................... 89

Figure 4-34: GSPI Time Delay .................................................................................................................... 89

Figure 4-35: Reset Pulse .............................................................................................................................119

Figure 5-1: Typical Application Circuit ................................................................................................120

Figure 7-1: Package Dimensions .............................................................................................................122

Figure 7-2: Marking Diagram ...................................................................................................................123

Figure 7-3: Pb-free Solder Reflow Profile ............................................................................................124

List of Tables

Table 1-1: Pin Descriptions ......................................................................................................................... 11

Table 2-1: Absolute Maximum Ratings................................................................................................... 20

Table 2-2: Recommended Operating Conditions................................................................................ 20

Table 2-3: DC Electrical Characteristics ................................................................................................. 21

Table 2-4: AC Electrical Characteristics ................................................................................................. 23

Table 4-1: GS2972 Digital Input AC Electrical Characteristics....................................................... 31

Table 4-2: GS2972 Input Video Data Format Selections................................................................... 31

Table 4-3: GS2972 PCLK Input Rates....................................................................................................... 34

Table 4-4: CEA861 Timing Formats ......................................................................................................... 38

Table 4-5: Serial Audio Input Pin Description...................................................................................... 45

Table 4-6: GS2972 Serial Audio Data Inputs - AC Electrical Characteristics............................. 46

Table 4-7: Audio Input Formats ................................................................................................................ 47

Table 4-8: GS2972 Audio Operating Mode Selection ........................................................................ 50

Table 4-9: GS2972 SD Audio Crosspoint Channel Selection ........................................................... 54

Table 4-10: Audio Source Host Interface Fields .................................................................................. 54

Table 4-11: GS2972 SD Audio Buffer Size Selection .......................................................................... 56

Table 4-12: GS2972 SD Audio Five Frame Sequence Sample Count............................................ 58

Table 4-13: GS2972 SD Audio Group 1 Audio Sample Distribution - 525 line.......................... 58

Table 4-14: GS2972 SD Audio Group 2 Audio Sample Distribution - 525 line.......................... 59

Table 4-15: GS2972 SD Audio Group 3 Audio Sample Distribution - 525 line.......................... 59

Table 4-16: GS2972 SD Audio Group 4 Audio Sample Distribution - 525 line.......................... 59

Table 4-17: GS2972 SD Audio Group 1 Audio Sample Distribution - 625 line.......................... 59

Table 4-18: GS2972 SD Audio Group 2 Audio Sample Distribution - 625 line.......................... 60

Table 4-19: GS2972 SD Audio Group 3 Audio Sample Distribution - 625 line.......................... 60

Table 4-20: GS2972 SD Audio Group 4 Audio Sample Distribution - 625 line.......................... 60

Table 4-21: Audio Interrupt Control – Host Interface Bit Description ......................................... 64

Table 4-22: Supported Video Standards................................................................................................. 72

Table 4-23: IOPROC Register Bits ............................................................................................................. 80

Table 4-24: SMPTE ST 352 Packet Data................................................................................................... 81

Table 4-25: PCLK and Serial Digital Clock Rates ................................................................................. 82

Table 4-26: GS2972 PLL Bandwidth......................................................................................................... 83

Table 4-27: GS2972 Lock Detect Indication .......................................................................................... 83

Table 4-28: Serial Digital Output - Serial Output Data Rate ............................................................ 84

Table 4-29: RSET Resistor Value vs. Output Swing.............................................................................. 85

Table 4-30: Serial Digital Output - Overshoot/Undershoot............................................................. 85

Table 4-31: Serial Digital Output - Rise/Fall Time............................................................................... 86

Table 4-32: GSPI Time Delay...................................................................................................................... 89

Table 4-33: GSPI AC Characteristics........................................................................................................ 90

Table 4-34: Video Core Configuration and Status Registers............................................................ 91

Table 4-35: SD Audio Core Configuration and Status Registers................................................... 100

GS2972 Datasheet(PDF) 8 Page - Semtech Corporation

GS2972 Datasheet(HTML) 8 Page - Semtech Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL