ES9038PRO datasheet(28/58 Pages) ESS

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CONFIDENTIAL ADVANCE INFORMATION v3.6

March 5, 2019

ES9038PRO Flagship 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

Bits

[7]

[6]

[5]

[4:0]

Mnemonic

soft_start

soft_stop_on_unlock

reserved

soft_start_time

Default

1’b1

1’b0

5’d10

Bit

Mnemonic

Description

[7]

soft_start

The Sabre DAC initializes both DAC and DACB to GND, and then ramps up the

signal to AVCC/2. DAC and DACB remain in phase until the ramp is complete.

Soft_start

controls the ramp operation and defaults to 1’b1 (ramp to AVCC /2)

•

1’b0: ramps the output stream to ground

•

1’b1: normal operation (default) will ramp the output stream to AVCC/2

[6]

soft_stop_on

_unlock

Automatically ramps the output low when lock is lost

•

1’b0: do not force the output low on loss of lock (default)

•

1’b1: force output to ground on loss of lock

[5]

reserved

[4:0]

Soft_start

_time

Sets the amount of time it takes to perform a soft-start ramp. This time affects

ramp to ground & ramp to AVCC/2. The value is valid from 0 to 20 (inclusive).

time (s) = 4096 ∗

2(soft_start_time+1)

MCLK (Hz)

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