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GS2960A Arkusz danych(PDF) 3 Page - Gennum Corporation |
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GS2960A Arkusz danych(HTML) 3 Page - Gennum Corporation |
3 / 99 page GS2960A 3Gb/s, HD, SD SDI Receiver Data Sheet 54384 - 2 September 2012 3 of 99 Contents Key Features........................................................................................................................................................1 Applications.........................................................................................................................................................1 Description...........................................................................................................................................................1 Functional Block Diagram ..............................................................................................................................2 1. Pin Out...............................................................................................................................................................7 1.1 Pin Assignment ..................................................................................................................................7 1.2 Pin Descriptions ................................................................................................................................7 2. Electrical Characteristics ......................................................................................................................... 14 2.1 Absolute Maximum Ratings ....................................................................................................... 14 2.2 Recommended Operating Conditions .................................................................................... 14 2.3 DC Electrical Characteristics ..................................................................................................... 15 2.4 AC Electrical Characteristics ..................................................................................................... 17 3. Input/Output Circuits ............................................................................................................................... 22 4. Detailed Description.................................................................................................................................. 25 4.1 Functional Overview .................................................................................................................... 25 4.2 SMPTE 425M Mapping - 3G Level A and Level B Formats ............................................... 25 4.2.1 Level A Mapping................................................................................................................ 25 4.2.2 Level B Mapping ................................................................................................................ 26 4.3 Serial Digital Input ........................................................................................................................ 26 4.4 Serial Digital Loop-Through Output ........................................................................................ 26 4.5 Serial Digital Reclocker ............................................................................................................... 27 4.5.1 PLL Loop Bandwidth ........................................................................................................27 4.6 External Crystal/Reference Clock ...........................................................................................28 4.7 Lock Detect ...................................................................................................................................... 29 4.7.1 Asynchronous Lock .......................................................................................................... 30 4.7.2 Signal Interruption............................................................................................................ 31 4.8 SMPTE Functionality .................................................................................................................... 31 4.8.1 Descrambling and Word Alignment ........................................................................... 31 4.9 Parallel Data Outputs ................................................................................................................... 32 4.9.1 Parallel Data Bus Buffers.................................................................................................32 4.9.2 Parallel Output in SMPTE Mode ................................................................................... 35 4.9.3 Output Data Format in DVB-ASI Mode...................................................................... 35 4.9.4 Parallel Output in Data-Through Mode ..................................................................... 36 4.9.5 Parallel Output Clock (PCLK)......................................................................................... 36 4.9.6 DDR Parallel Clock Timing ............................................................................................. 37 4.10 Timing Signal Generator ........................................................................................................... 39 4.10.1 Manual Switch Line Lock Handling.......................................................................... 40 4.10.2 Automatic Switch Line Lock Handling .................................................................... 41 4.10.3 Switch Line Lock Handling During Level B to Level A Conversion ............... 41 4.11 Programmable Multi-function Outputs ............................................................................... 43 4.12 H:V:F Timing Signal Generation ............................................................................................44 4.12.1 CEA-861 Timing Generation ....................................................................................... 46 4.13 Automatic Video Standards Detection ................................................................................ 52 4.13.1 2K Support......................................................................................................................... 56 |
Podobny numer części - GS2960A |
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Podobny opis - GS2960A |
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