ES9028PRO datasheet(46/57 Pages) ESS

46 / 57 page

CONFIDENTIAL INFORMATION v3.6

July 6, 2020

ES9028PRO 32-Bit HyperStream® II 8-Channel Audio DAC

ESS TECHNOLOGY, INC. 237 South Hillview Drive, Milpitas, CA 95035, USA. Tel (408) 643-

8800 • Fax (408) 643-8801

Recommended Power-Up Sequence

The ES9028PRO must be reset after power-up to ensure correct operation. Reset can be performed using a reset controller

in some configurations or via a system software reset. The active-LOW reset pin provides a high input-impedance with no

internal pull-up or pull-down. To reset the ES9028PRO, the reset input should be pulled low for a minimum of 1ms after all

external power supplies (and XIN if supplied externally) are stabilized. Following the reset signal, the input can be held high

indefinitely.

DVDD

Same time as AVDD or later

RESETB

At power up, assert RESETB until at least

1ms after all external power supplies (and

XIN if supplied externally) are stabilized

Subsequent reset, if needed,

should be asserted for 10ns

or longer

VCCA

AVCC_L, AVCC_R

Same time as VCCA or later

XIN (if externally supplied)

AVDD

Before or after VCCA as long as RESETB is asserted (i.e. held low) until all

power supplies are stable

VDD_L, VDD_R

ES9028PRO 데이터시트(PDF) 46 Page - ESS Technology,Inc