ES9826 datasheet(17/88 Pages) ESS

17 / 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

Audio Output Formats

The ES9826 supports multiple serial output data formats.

In Hardware mode, see Input/Output mode table to configure the output format. Hardware mode is limited to a single output

format. Since S/PDIF and PCM data are both on GPIO3, the user must choose between the two options.

In Software mode, the TDM encoder (used for TDM and PCM) is enabled, and the S/PDIF encoder is disabled by default.

In Software mode, both PCM and S/PDIF outputs can be used in parallel since S/PDIF can be mapped to any GPIO.

PCM (I2S, LJ)

Data is packaged as 2 channel slots per data line. Either ADC can be mapped to either the first or second slot of the frame

through Registers 7[4:0] & 8[4:0] TDM_SLOT_SEL_CHx. Data is latched on the positive edge of BCLK.

Pin Name

Function

Description

DATA_CLK

I2S BCLK

I2S clock (Bit Clock), Master or Slave

DATA1

I2S WS

I2S WS (Word Select/Frame Select), Master or Slave

GPIO3/DATA2

I2S DATA

Table 10 - PCM pin connections

ES9826 Datasheet(PDF) 17 Page - ESS Technology,Inc