TAS2780 datasheet(2/96 Pages) TI

2 / 96 page

Table of Contents

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

2 Applications..................................................................... 1

3 Description.......................................................................1

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

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

6 Specifications.................................................................. 4

6.1 Absolute Maximum Ratings........................................ 4

6.2 ESD Ratings............................................................... 4

6.3 Recommended Operating Conditions.........................4

6.4 Thermal Information....................................................5

6.5 Electrical Characteristics.............................................5

6.6 I2C Timing Requirements..........................................10

6.7 TDM Port Timing Requirements................................10

6.8 Typical Characteristics.............................................. 12

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

8 Detailed Description......................................................14

8.1 Overview................................................................... 14

8.2 Functional Block Diagram......................................... 15

8.3 Feature Description...................................................15

8.4 Device Functional Modes..........................................16

8.5 Operational Modes....................................................27

8.6 Faults and Status...................................................... 28

8.7 Power Sequencing Requirements............................ 31

8.8 Digital Input Pull Downs............................................ 31

8.9 Register Map.............................................................31

8.10 SDOUT Equations.................................................. 78

9 Application and Implementation.................................. 79

9.1 Application Information............................................. 79

9.2 Typical Application.................................................... 79

9.3 Design Requirements............................................... 80

9.4 Detailed Design Procedure....................................... 80

9.5 Application Curves.................................................... 81

10 Initialization Set Up..................................................... 82

10.1 Initial Device Configuration - PWR_MODE0...........82

10.2 Initial Device Configuration - PWR_MODE1...........82

10.3 Initial Device Configuration - PWR_MODE2...........82

10.4 Initial Device Configuration - PWR_MODE3...........83

10.5 Initial Device Configuration - 44.1 kHz....................83

10.6 Sample Rate Change - 48 kHz to 44.1kHz............. 83

10.7 Over Power Protection - OCP Programming.......... 84

10.8 DSP Loopback........................................................ 84

11 Power Supply Recommendations..............................85

11.1 Power Supply Modes.............................................. 85

12 Layout...........................................................................86

12.1 Layout Guidelines................................................... 86

12.2 Layout Example...................................................... 86

13 Device and Documentation Support..........................88

13.1 Receiving Notification of Documentation Updates..88

13.2 Community Resources............................................88

13.3 Trademarks.............................................................88

14 Mechanical, Packaging, and Orderable

Information.................................................................... 89

14.1 Tape and Reel Information......................................93

4 Revision History

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

DATE

REVISION

NOTES

November 2021

Initial Draft

TAS2780

SLOSE75 – NOVEMBER 2021

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