GS1672 datasheet(4/116 Pages) SEMTECH

4 / 116 page

GS1672 HD/SD-SDI Serializer with Complete SMPTE

Audio & Video Support

Data Sheet

53623 - 6

July 2011

4 of 116

Contents

Key Features........................................................................................................................................................1

Applications.........................................................................................................................................................1

Description...........................................................................................................................................................2

Functional Block Diagram ..............................................................................................................................2

Revision History .................................................................................................................................................3

1. Pin Out...............................................................................................................................................................9

1.1 Pin Assignment ..................................................................................................................................9

1.2 Pin Descriptions ............................................................................................................................. 10

2. Electrical Characteristics ......................................................................................................................... 18

2.1 Absolute Maximum Ratings ....................................................................................................... 18

2.2 Recommended Operating Conditions .................................................................................... 18

2.3 DC Electrical Characteristics ..................................................................................................... 19

2.4 AC Electrical Characteristics ..................................................................................................... 20

3. Input/Output Circuits ............................................................................................................................... 22

4. Detailed Description.................................................................................................................................. 27

4.1 Functional Overview .................................................................................................................... 27

4.2 Parallel Data Inputs ....................................................................................................................... 28

4.2.1 Parallel Input in SMPTE Mode....................................................................................... 29

4.2.2 Parallel Input in DVB-ASI Mode................................................................................... 30

4.2.3 Parallel Input in Data-Through Mode......................................................................... 30

4.2.4 Parallel Input Clock (PCLK) ............................................................................................ 30

4.3 SMPTE Mode ................................................................................................................................... 31

4.3.1 H:V:F Timing ....................................................................................................................... 31

4.3.2 CEA 861 Timing.................................................................................................................. 33

4.4 DVB-ASI Mode ............................................................................................................................... 40

4.5 Data-Through Mode ..................................................................................................................... 40

4.6 Standby Mode ................................................................................................................................. 40

4.7 Audio Embedding .......................................................................................................................... 41

4.7.1 Serial Audio Data Inputs ................................................................................................. 41

4.7.2 Serial Audio Data Format Support............................................................................... 43

4.7.3 HD Mode............................................................................................................................... 45

4.7.4 SD Mode................................................................................................................................ 45

4.7.5 Audio Embedding Operating Modes .......................................................................... 45

4.7.6 Audio Packet Detection................................................................................................... 46

4.7.7 Audio Packet Deletion .....................................................................................................46

4.7.8 Audio Packet Detection and Deletion ........................................................................ 46

4.7.9 Audio Mute (Default Off) ................................................................................................ 47

4.7.10 Audio Channel Status .................................................................................................... 48

4.7.11 Audio Crosspoint............................................................................................................. 48

4.7.12 Audio Word Clock .......................................................................................................... 50

4.7.13 Channel & Group Activation ....................................................................................... 50

4.7.14 Audio FIFO - SD............................................................................................................... 50

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