ES9027SPRO datasheet(14/89 Pages) ESS

14 / 89 page

ES9027PRO Datasheet

VERSION 0.4.1

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

Digital Features

Digital Signal Path

SABRE DAC DIGITAL PATH

TDM/I2S/

DoP

S/PDIF

Automute

DSD FIR

DSD

16x IIR

Filter

Noise Shaped

Modulators

SRC

8x Oversampling Filter

2x OSF

Bypass

4x OSF

MAPPING

Volume

Control

Note: Channel Mapping is only available with the TDM/I2S & DoP interface.

GPIO Configuration

GPIO_CONFIG

Function

I/O Direction

Analog Shutdown*

N/A

1’b0

Output

1’b1

Output

CLK_IDAC

Output

Interrupt

Output

Mute all channel

Input

Input Selection

Input

Lock status

Output

CLK_VALID flag

Output

PWM1

Output

PWM2

Output

PWM3

Output

Volume min

Output

Automute status

Output

Soft Ramp finished

Output

Reserved

Output

Table 3 – Standard GPIO Functions

For GPIO_CONFIG 0:

*Analog Shutdown is input disabled, output is tri-stated

GPIOx Default states:

GPIO1: Automute Status

GPIO3-8: Analog Shutdown

GPIO2: GPIO_CONFIG = 7

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