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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCM5121 датащи(PDF) 2 Page - Texas Instruments |
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PCM5121 датащи(HTML) 2 Page - Texas Instruments |
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2 / 121 page  2 PCM5121, PCM5122 SLAS763C – AUGUST 2012 – REVISED OCTOBER 2018 www.ti.com Product Folder Links: PCM5121 PCM5122 Submit Documentation Feedback Copyright © 2012–2018, Texas Instruments Incorporated Table of Contents 1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Device Comparison ............................................... 4 6 Pin Configuration and Functions ......................... 5 6.1 Pin Functions ............................................................ 5 7 Specifications......................................................... 7 7.1 Absolute Maximum Ratings ...................................... 7 7.2 ESD Ratings ............................................................ 7 7.3 Recommended Operating Conditions ....................... 7 7.4 Thermal Information .................................................. 7 7.5 Electrical Characteristics........................................... 8 7.6 Timing Requirements: SCK Input ........................... 11 7.7 Timing Requirements: XSMT .................................. 11 7.8 Switching Characteristics ........................................ 11 7.9 Typical Characteristics ............................................ 12 8 Detailed Description ............................................ 14 8.1 Overview ................................................................. 14 8.2 Functional Block Diagram ....................................... 14 8.3 Feature Description................................................. 14 8.4 Device Functional Modes........................................ 51 8.5 Programming........................................................... 57 9 Application and Implementation ........................ 58 9.1 Application Information............................................ 58 9.2 Typical Application .................................................. 58 10 Power Supply Recommendations ..................... 60 10.1 Power Supply Distribution and Requirements ...... 60 10.2 Recommended Powerdown Sequence................. 60 10.3 External Power Sense Undervoltage Protection Mode ........................................................................ 62 10.4 Power-On Reset Function..................................... 64 10.5 PCM512x Power Modes ....................................... 65 11 Layout................................................................... 66 11.1 Layout Guidelines ................................................. 66 11.2 Layout Example .................................................... 66 12 Register Maps...................................................... 67 12.1 PCM512x Register Map ........................................ 67 13 Device and Documentation Support ............... 113 13.1 Development Support ......................................... 113 13.2 Documentation Support ...................................... 113 13.3 Related Links ...................................................... 113 13.4 Receiving Notification of Documentation Updates.................................................................. 113 13.5 Community Resources........................................ 113 13.6 Trademarks ......................................................... 113 13.7 Electrostatic Discharge Caution .......................... 113 13.8 Glossary .............................................................. 113 14 Mechanical, Packaging, and Orderable Information ......................................................... 114 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision B (January 2016) to Revision C Page • Added bullet item with additional description for 3-wire mode operation to Design Requirements section ........................ 58 Changes from Revision A (September 2012) to Revision B Page • Changed Accepts 16-, 24-, And 32-Bit Audio Data to Accepts 16-, 20-, 24-, And 32-Bit Audio Data ................................... 1 • Deleted Internal Pop-Free Control For Sample-Rate Changes Or Clock Halts, .. With Popless Operation .......................... 1 • Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional Modes section, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section ................... 1 • Clarified Pin Functions table................................................................................................................................................... 5 • Deleted redundant PLL specification in Recommended Operating Conditions .................................................................... 7 • Deleted Intelligent clock error... and ...for pop-free performance in the Overview section. ................................................. 14 • Added note on instruction cycle requirements. .................................................................................................................... 20 • Added note on instruction cycles in Fixed Audio Processing Flow (Program 5).................................................................. 34 • Changed Ouptut to Output ................................................................................................................................................... 42 • Deleted VREF mode provides 2.1Vrms full-scale output at both AVDD levels...................................................................... 42 • Clarified clock generation explanation in Reset and System Clock Functions..................................................................... 45 • Clarified external SCK discussion in Clock Slave Mode with BCK PLL to Generate Internal Clocks (3-Wire PCM)........... 47 • Deleted The PCM512x disables the internal PLL when an external SCK is supplied. ........................................................ 47 |
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