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GS1671A Datasheet(PDF) 4 Page - Gennum Corporation |
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GS1671A Datasheet(HTML) 4 Page - Gennum Corporation |
4 / 136 page GS1671A HD/SD SDI Receiver Data Sheet 54389 - 1 September 2012 4 of 136 Contents Key Features.......................................................................................................................................................1 Applications.........................................................................................................................................................1 Description...........................................................................................................................................................2 Functional Block Diagram ..............................................................................................................................3 1. Pin Out...............................................................................................................................................................8 1.1 Pin Assignment ..................................................................................................................................8 1.2 Pin Descriptions ................................................................................................................................8 2. Electrical Characteristics ......................................................................................................................... 16 2.1 Absolute Maximum Ratings ....................................................................................................... 16 2.2 Recommended Operating Conditions .................................................................................... 16 2.3 DC Electrical Characteristics ..................................................................................................... 17 2.4 AC Electrical Characteristics ..................................................................................................... 19 3. Input/Output Circuits ............................................................................................................................... 23 4. Detailed Description.................................................................................................................................. 26 4.1 Functional Overview .................................................................................................................... 26 4.2 Serial Digital Input ........................................................................................................................ 27 4.2.1 Integrated Adaptive Cable Equalizer.......................................................................... 27 4.3 Serial Digital Loop-Through Output ........................................................................................ 28 4.4 Serial Digital Reclocker ............................................................................................................... 29 4.4.1 PLL Loop Bandwidth ........................................................................................................29 4.5 External Crystal/Reference Clock ...........................................................................................30 4.6 Lock Detect ...................................................................................................................................... 31 4.6.1 Asynchronous Lock .......................................................................................................... 32 4.6.2 Signal Interruption............................................................................................................ 32 4.7 SMPTE Functionality .................................................................................................................... 33 4.7.1 Descrambling and Word Alignment ........................................................................... 33 4.8 Parallel Data Outputs ................................................................................................................... 34 4.8.1 Parallel Data Bus Buffers.................................................................................................34 4.8.2 Parallel Output in SMPTE Mode ................................................................................... 36 4.8.3 Parallel Output in DVB-ASI Mode ............................................................................... 36 4.8.4 Parallel Output in Data-Through Mode ..................................................................... 37 4.8.5 Parallel Output Clock (PCLK)......................................................................................... 37 4.9 Timing Signal Generator ............................................................................................................. 38 4.9.1 Manual Switch Line Lock Handling ............................................................................ 38 4.9.2 Automatic Switch Line Lock Handling....................................................................... 39 4.10 Programmable Multi-function Outputs ............................................................................... 42 4.11 H:V:F Timing Signal Generation ............................................................................................43 4.11.1 CEA-861 Timing Generation ....................................................................................... 44 4.12 Automatic Video Standards Detection ................................................................................ 51 4.12.1 2K Support......................................................................................................................... 53 4.13 Data Format Detection & Indication ..................................................................................... 54 4.14 EDH Detection .............................................................................................................................. 55 4.14.1 EDH Packet Detection ................................................................................................... 55 4.14.2 EDH Flag Detection ........................................................................................................ 55 |
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