ES9826 datasheet(2/88 Pages) ESS

2 / 88 page

ES9826 Datasheet

VERSION 0.1.2

ESS TECHNOLOGY, INC. 109 Bonaventura Drive, San Jose, CA 95134, USA Tel (408) 643-8800 • WWW.ESSTECH.COM

Table of Contents

Table of Contents .................................................................................................................................................................... 2

List of Figures .......................................................................................................................................................................... 5

List of Tables ........................................................................................................................................................................... 6

Functional Block Diagram........................................................................................................................................................ 7

ES9826 Pinout......................................................................................................................................................................... 8

28 QFN Pin Descriptions ......................................................................................................................................................... 9

Configuration Modes.............................................................................................................................................................. 10

Software Mode................................................................................................................................................................... 10

I2C .................................................................................................................................................................................. 10

SPI ................................................................................................................................................................................. 10

Hardware Mode.................................................................................................................................................................. 11

Design Information ......................................................................................................................................................... 11

Input/Output Mode.......................................................................................................................................................... 11

GPIO Table .................................................................................................................................................................... 12

Mute ............................................................................................................................................................................... 12

Hardware Mode Pin Configurations................................................................................................................................ 13

Recommended Hardware Mode Setup Sequence ......................................................................................................... 14

Digital Features...................................................................................................................................................................... 15

Digital Signal Path.............................................................................................................................................................. 15

Volume Control............................................................................................................................................................... 15

Peak Detect.................................................................................................................................................................... 15

8x FIR decimation filter................................................................................................................................................... 16

THD Compensation........................................................................................................................................................ 16

Audio Output Formats........................................................................................................................................................ 17

PCM (I2S, LJ)................................................................................................................................................................. 17

TDM (Time-division multiplexing) ................................................................................................................................... 19

S/PDIF............................................................................................................................................................................ 21

GPIO Configuration............................................................................................................................................................ 22

Interrupts............................................................................................................................................................................ 23

OR of All Interrupts......................................................................................................................................................... 23

Digital Filters ...................................................................................................................................................................... 23

PCM Filter Properties (44.1kHz Sampling)..................................................................................................................... 24

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