TMDS181, TMDS181I

SLASE75A – AUGUST 2015 – REVISED OCTOBER 2015

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Table of Contents

1

Features .................................................................. 1

8

Detailed Description ............................................ 23

8.1

Overview ................................................................. 23

2

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

8.2

Functional Block Diagram ....................................... 24

3

Description ............................................................. 1

8.3

Feature Description................................................. 24

4

Revision History..................................................... 2

8.4

Device Functional Modes........................................ 30

5

Pin Configuration and Functions ......................... 3

8.5

Register Maps ......................................................... 32

6

Specifications......................................................... 5

9

Application and Implementation ........................ 39

6.1

Absolute Maximum Ratings ...................................... 5

9.1

Application Information............................................ 39

6.2

ESD Ratings.............................................................. 5

9.2

Typical Applications ................................................ 40

6.3

Recommended Operating Conditions ....................... 6

10

Power Supply Recommendations ..................... 47

6.4

Thermal Information .................................................. 7

11

Layout................................................................... 48

6.5

Power Supply Electrical Characteristics ................... 7

11.1

Layout Guidelines ................................................. 48

6.6

TMDS Differential Input Electrical Characteristics .... 8

11.2

Layout Example .................................................... 49

6.7

TMDS Differential Output Electrical Characteristics . 9

12

Device and Documentation Support ................. 50

6.8

Characteristics ......................................................... 10

12.1

Documentation Support ........................................ 50

6.9

Power-Up and Operation Timing Requirements ..... 11

12.2

Related Links ........................................................ 50

6.10

TMDS Switching Characteristics........................... 12

12.3

Community Resources.......................................... 50

6.11

HPD Switching Characteristics ............................. 13

12.4

Trademarks ........................................................... 50

6.12

12.5

Electrostatic Discharge Caution ............................ 50

6.13

Typical Characteristics .......................................... 14

12.6

Glossary ................................................................ 50

7

Parameter Measurement Information ................ 14

13

Mechanical, Packaging, and Orderable

Information ........................................................... 50

4 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Original (August 2015) to Revision A

Page

•

Updated device from product preview to production data ..................................................................................................... 1

•

Changed max value from 1.56 V to VCC + 0.3V; added input current and Min value........................................................... 5

•

Added Max Input Current on Main Link Differential Input pins............................................................................................... 5

•

Updated the note showing the values shown are only for Microcontroller driven and not values based upon pull up

or pull down resistors. ............................................................................................................................................................ 6

•

Increased Max Value of ISD2 from 10 to 15mA .................................................................................................................... 7

•

Changed Max Receiver impedance value to 115 ................................................................................................................. 8

•

Inserted values for SCL/SDA_SNK ..................................................................................................................................... 10

•

Changed from 6000 to 3400 ................................................................................................................................................ 12

•

Deleted Clear and NA Access Tags .................................................................................................................................... 33

•

Removed reg20h[5:4] ARC_SWING ................................................................................................................................... 38

•

Removed 1k pullup from switch as not needed .................................................................................................................. 43

•

Added Note for VSADJ resistor value in Compliance Pin Strapping section ...................................................................... 46

•

Changed De-emphasis value from 0 dB to -2 dB for recommended configuration for compliance testing. ........................ 46

•

Added Note for VSADJ resistor value in Compliance I2C control section and included register that can increase or

decrease the VOD swing ..................................................................................................................................................... 46

2

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