GS2965 Datasheet, PDF (3/41 Pages) Gennum Corporation – Uses standard 27MHz crystal

Contents
1. Pin Out ............................................................................................................................................4
1.1 Pin Assignment ................................................................................................................4
1.2 Pin Descriptions ...............................................................................................................5
1.3 Default Start-up Settings ...............................................................................................7
2. Electrical Characteristics ..........................................................................................................8
2.1 Absolute Maximum Ratings .........................................................................................8
2.2 DC Electrical Characteristics .......................................................................................8
2.3 AC Electrical Characteristics .......................................................................................9
3. Input/Output Circuits ............................................................................................................. 12
4. Detailed Description................................................................................................................ 15
4.1 Serial Data Input ........................................................................................................... 15
4.2 Modes of Operation ..................................................................................................... 15
4.3 Input Trace Equalization ............................................................................................ 15
4.4 2:1 Input Mux ................................................................................................................ 16
4.5 Crystal Buffer ................................................................................................................. 17
4.6 LOS (Loss Of Signal) Detection ................................................................................. 17
4.7 Serial Digital Reclocker .............................................................................................. 18
4.8 Lock Detection ............................................................................................................... 18
4.8.1 Lock Detect and Asynchronous Lock ......................................................... 19
4.9 Serial Data Output ........................................................................................................ 19
4.9.1 Output Signal Interface Levels...................................................................... 19
4.9.2 Adjustable Output Swing................................................................................ 19
4.9.3 Output De-emphasis ........................................................................................ 20
4.10 Automatic and Manual Data Rate Selection ..................................................... 21
4.11 SD/HD Indication ....................................................................................................... 21
4.12 Bypass Mode ................................................................................................................ 22
4.13 DVB-ASI ........................................................................................................................ 22
4.14 Output Mute and Data/Clock Output Selection .............................................. 22
4.15 Host Interface .............................................................................................................. 23
4.15.1 Introduction ...................................................................................................... 23
4.15.2 Legacy Mode & Start-up ............................................................................... 23
4.15.3 Host Interface Mode & Start-up.................................................................. 23
4.15.4 Clock & Data Timing ...................................................................................... 24
4.15.5 Single Device Operation............................................................................... 24
4.15.6 Write Operation - Single Device................................................................ 25
4.15.7 Read Operation - Single Device ................................................................. 26
4.15.8 Daisy Chain Operation.................................................................................. 27
4.15.9 Read & Write Operation - Daisy Chained Devices .............................. 29
4.15.10 Writing to all Devices.................................................................................. 29
4.15.11 Writing to a Single Device in the Chain ................................................ 30
GS2965 Multi-Rate SDI Reclocker with Equalization &
De-emphasis
Data Sheet
52462 - 4
July 2012
3 of 41
Proprietary & Confidential