ES9080 datasheet(143/146 Pages) ESS

143 / 146 page

CONFIDENTIAL ADVANCE INFORMATION 0.4.3

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

143

ES9080 Product Datasheet

w 139 0xFF; //Allow DRE to still trigger is there is a small DC offset in the music.

(Some

recordings have small DC offsets in them)

w 140 0x56; //Set DRE digital gain of CH1/3/5/7 to 16.37dB to match the Analog attenuate

amount when DRE turns on

w 141 0x1A; //Set DRE digital gain to CH1/3/5/7 to 16.37dB to match the Analog attenuate

amount when DRE turns on

w 142 0x56; //Set DRE digital gain to CH2/4/6/8 to 16.37dB to match the Analog attenuate

amount when DRE turns on

w 143 0x1A; //Set DRE digital gain to CH2/4/6/8 to 16.37dB to match the Analog attenuate

amount when DRE turns on

w 144 0xF1; //Set DRE ON threshold to -48dB

w 145 0x0C; //Set DRE ON threshold to -48dB

w 146 0x84; //Set DRE OFF threshold to -28dB

w 147 0x81; //Set DRE OFF threshold to -28dB

w 148 0x8F; //Set DRE decay rate (time it takes to automatically engage DRE if the signal

drops below the DRE ON threshold

//Enable Audio

w 92 0x10;

//Toggle DAC clock Resync to line up all the clocks in the DAC core for best

analog performance

w 92 0x0F;

//Toggle DAC clock Resync to line up all the clocks in the DAC core for best

analog performance

w 92 0x00;

//Toggle DAC clock Resync to line up all the clocks in the DAC core for best

analog performance

w 0 0x02;

//Turn on the AMP

(This runs a state machine to gracefully turn on the DAC's)

ES9080 Datasheet(PDF) 143 Page - ESS Technology,Inc