ES9033 datasheet(16/103 Pages) ESS

16 / 103 page

0.3.1

ES9033 Datasheet Information

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

Soft Mute

When Mute is asserted the digital signal level will be smoothly ramped to minimum. When Mute is de-asserted the digital signal level will ramp back

up to the level set by the volume control register. Asserting Mute will not change the value stored in the volume control register. The volume ramp

rate is controlled through registers 48-50.

Mute can be engaged through either the automute feature or by setting the mute bits for any individual channel through register 51: MUTE CTRL &

CH INVERT.

Automute

Automute is disabled by default and is triggered when any one of the following conditions are met:

Mode

Detection Condition

Time

PCM

Data is lower than automute_level for

longer than the automute_time

2^18

(��_�� ∗ ��)

DSD

Equal number of 1s and 0s in any 8

consecutive bits of data

2^18

(��_�� ∗ ��)

DoP

DSD data contains an equal number of 1s

and 0s in any 8 consecutive bits of data

2^18

(��_�� ∗ ��)

Table 5 - Automute conditions

The automute feature is enabled for both channels individually through the AUTOMUTE_EN_CH2 and AUTOMUTE_EN_CH1 bits (register 64-

63[12:11]). The thresholds that trigger and disable automute can be configured through registers 65-68.

Volume Control

This volume control is intended for use during audio playback. Each channel can be digitally attenuated from 0dB to –127.5dB. When a new volume

level is set, the attenuation circuit will ramp softly to the new level.

Volume of both channels individually is configured through registers 46-47.

By default, channel volumes are updated as soon as the volume registers are written. However the volume control can be configured to only change

once the RUN_VOLUME bit (register 51[5]) is toggled. This feature can be enabled or disabled through the FORCE_VOLUME bit (register 51[7]).

Both output channels have an independent volume control. The attenuation for the channels can be independent or synchronized in pairs by setting

the DAC_USE_MONO_VOLUME bit (register 51[6]).

THD Compensation

THD Compensation can be used to minimize distortion from external PCB components and layout through the generation of inverse second and

third harmonic components matching the target system distortion profile.

The coefficients are stored in Registers 56 – 61.

ES9033 bảng dữ liệu(PDF) 16 Page - ESS Technology,Inc

ES9033 bảng dữ liệu(HTML) 16 Page - ESS Technology,Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

bảng dữ liệu tải về

Link URL