PCM1861 datasheet(3/115 Pages) TI

3 / 115 page

PCM1861, PCM1863, PCM1865

www.ti.com

SLAS831C – MARCH 2014 – REVISED AUGUST 2014

Table of Contents

8.13

Clocks ................................................................... 26

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

8.14

ADCs..................................................................... 35

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

8.15

Audio Processing .................................................. 40

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

8.16

Fade-In and Fade-Out Functions.......................... 42

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

8.17

Mappable GPIO Pins ............................................ 42

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

8.18

Current Status Registers....................................... 42

5.1

Pin Assignments, PCM1861 ..................................... 5

8.19

Control................................................................... 42

5.2

Pin Assignments, PCM1863, PCM1865 ................... 7

8.20

Interrupt Controller ................................................ 45

Specifications......................................................... 9

8.21

Audio Format Selection and Timing Details.......... 48

6.1

Absolute Maximum Ratings ...................................... 9

8.22

Device Functional Modes...................................... 51

6.2

Handling Ratings....................................................... 9

Applications and Implementation ...................... 53

6.3

Recommended Operating Conditions ....................... 9

9.1

Application Information............................................ 53

6.4

THERMAL CHARACTERISTICS .............................. 9

9.2

Typical Applications ................................................ 56

6.5

Electrical Characteristics, DC ................................. 10

Power Supply Recommendations ..................... 60

6.6

Electrical Characteristics, Primary PGA and ADC AC

10.1

Power Supply Distribution and Requirements ...... 60

Performance............................................................. 11

10.2

1.8V Support ......................................................... 60

6.7

Electrical Characteristics, Secondary ADC

Performance............................................................. 12

10.3

Power Up Sequence ............................................. 60

6.8

Digital Filter Characteristics .................................... 12

10.4

Lowest Power Down Modes ................................. 60

6.9

Timing Requirements, External Clock..................... 12

10.5

Power On Reset Sequencing Timing Diagram .... 62

6.10

I2C Control Interface Timing Requirements .......... 13

10.6

Power Connection Examples ................................ 62

6.11

SPI Control Interface Timing Requirements ......... 14

10.7

Fade In .................................................................. 63

6.12

Typical Characteristics .......................................... 15

Layout................................................................... 65

Parameter Measurement Information ................ 17

11.1

PCM186x Grounding and System Partitioning ..... 65

Detailed Description ............................................ 18

Programming and Registers Reference............ 67

8.1

Overview ................................................................. 18

12.1

Coefficient Data Formats ...................................... 67

8.2

Functional Block Diagram ....................................... 18

12.2

8.3

Terminology ............................................................ 18

12.3

Programming DSP Coefficients .......................... 106

8.4

Analog Front End .................................................... 19

Device and Documentation Support ............... 108

8.5

Microphone Support................................................ 19

13.1

Development Support ......................................... 108

8.6

PCM1861 Input Multiplexer..................................... 21

13.2

Related Links ...................................................... 108

8.7

PCM1863/5 Mixers and Multiplexers ...................... 21

13.3

Trademarks ......................................................... 108

8.8

Programmable Gain Amplifier ................................. 22

13.4

Electrostatic Discharge Caution .......................... 108

8.9

Automatic Clipping Suppression ............................. 22

13.5

Glossary .............................................................. 108

8.10

Zero-Crossing Detect ............................................ 24

Mechanical, Packaging, and Orderable

8.11

Digital Inputs ......................................................... 24

Information ......................................................... 109

8.12

Digital PDM Microphones ..................................... 25

4 Revision History

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

Changes from Revision B (March 2014) to Revision C

Page

•

Changed "terminal" to "pin" throughout data sheet ............................................................................................................... 1

•

Added table note about orderable addendum ....................................................................................................................... 1

•

Deleted package designators from part numbers in Device Information table....................................................................... 1

•

Changed "THD+N at - 1dBFS" to "Differential Input THD+N at - 1dBFS" ............................................................................. 2

•

Corrected pin numbers in Pin Description table .................................................................................................................... 5

•

Corrected pin numbers in Pin Description table - pin 11 is LDO and pin 12 is DGND ......................................................... 7

•

Changed Energysense Accuracy typ from 1dB to 3dB ........................................................................................................ 12

•

Changed Secondary ADC Accuracy from 10 bits to 12 bits................................................................................................. 12

•

Added Parameter Measurement Information section. ......................................................................................................... 17

•

Added default values for reserved registers......................................................................................................................... 67

Submit Documentation Feedback

Product Folder Links: PCM1861 PCM1863 PCM1865

PCM1861 Datasheet(PDF) 3 Page - Texas Instruments

PCM1861 Datasheet(HTML) 3 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL