VS1053 datasheet(84/90 Pages) VLSI

tên linh kiện	VS1053

Giải thích chi tiết về linh kiện	VS1053b - Ogg Vorbis/MP3/AAC/WMA/FLAC/ MIDI AUDIO CODEC CIRCUIT

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VS1053b Datasheet

VS1053B REGISTERS

11.15

Analog-to-Digital Converter (ADC)

ADC modulator registers control Analog-to-Digital conversions of VS1053b.

ADC Decimator registers, preﬁx ADC_

Reg

Type

Reset

Abbrev[bits]

Description

0xC042

CONTROL[4:0]

ADC control

0xC043

DATA_LEFT

ADC left channel data

0xC044

DATA_RIGHT

ADC right channel data

ADC_CONTROL controls the ADC and its associated decimator unit.

ADC_CONTROL Bits

Name

Bits

Description

ADC_MODU2_PD

Right channel powerdown

ADC_MODU1_PD

Left channel powerdown

ADC_DECIM_FACTOR

2:1

ADC Decimator factor:

- 3 = downsample to XTALI/512 (nominal 24 kHz)

- 2 = downsample to XTALI/256 (nominal 48 kHz)

- 1 = downsample to XTALI/128 (nominal 96 kHz)

- 0 = downsample to XTALI/64 (nominal 192 kHz)

ADC_ENABLE

Set to activate ADC converter and decimator

Note: Setting bit SS_AD_CLOCK in register SCI_STATUS will halve the operation speed of the

A/D unit, and thus halve the resulting samplerate.

Each time a new (stereo) sample has been generated, an ADC interrupt is generated.

Version: 1.31, 2017-11-17

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