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TAA3020中文資料德州儀器數(shù)據(jù)手冊(cè)PDF規(guī)格書

TAA3020
廠商型號(hào)

TAA3020

功能描述

TAA3020 2-Channel, 768kHz, 104dB Dynamic Range Audio ADC

文件大小

4.49368 Mbytes

頁(yè)面數(shù)量

112 頁(yè)

生產(chǎn)廠商 Texas Instruments
企業(yè)簡(jiǎn)稱

TI德州儀器

中文名稱

美國(guó)德州儀器公司官網(wǎng)

原廠標(biāo)識(shí)
數(shù)據(jù)手冊(cè)

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更新時(shí)間

2024-12-24 22:30:00

TAA3020規(guī)格書詳情

1 Features

? Multichannel high-performance ADC:

– 2-channel analog microphones or line-in

– 4-channel digital PDM microphones

– Up to 2 analog and up to 2 digital microphone

channels

? ADC line and microphone differential input

performance:

– Dynamic range (DR): 104dB

– THD+N: –95dB

? ADC channel summing mode, DR performance:

– 107dB, 2-channel summing

? ADC input voltage:

– Differential, 2VRMS full-scale inputs

– Single-ended, 1VRMS full-scale inputs

? ADC sample rate (fS) = 8kHz to 768kHz

? Programmable channel settings:

– Channel gain: 0dB to 42dB, 0.5dB steps

– Digital volume control: –100dB to 27dB

– Gain calibration with 0.1dB resolution

– Phase calibration with 163ns resolution

? Programmable microphone bias or supply voltage

generation

? Low-latency signal processing filter selection

? Programmable HPF and biquad digital filters

? Automatic gain controller (AGC)

? Voice activity detection (VAD)

? I2C control interface

? Integrated high-performance audio PLL

? Automatic clock divider setting configurations

? Audio serial data interface:

– Format: TDM, I2S, or left-justified (LJ)

– Word length: 16 bits, 20 bits, 24 bits, or 32 bits

– Master or slave interface

? Single-supply operation: 3.3V or 1.8V

? I/O-supply operation: 3.3V or 1.8V

? Power consumption for 1.8-AVDD supply:

– 9.5mW/channel at 48kHz sample rate

2 Applications

? Smart speakers

? IP network cameras

? Professional microphones and wireless systems

? Video conference systems

3 Description

The TAA3020 is a high-performance, audio analog-todigital

converter (ADC) that supports simultaneous

sampling of up to two analog channels or four

digital channels for a pulse density modulation

(PDM) microphone input. The device supports line

and microphone inputs and allows single-ended and

differential input configurations. The device allows

for sample rates up to 768kHz and integrates

programmable channel gain, digital volume control,

a programmable microphone bias voltage, a phaselocked

loop (PLL), a programmable high-pass filter

(HPF), biquad filters, and low-latency filter modes.

The device supports time-division multiplexing (TDM),

I2S, or left-justified (LJ) audio formats, and can be

controlled with the I2C interface. These integrated

high-performance features and the ability to be

powered from a single supply of 1.8V or 3.3V make

the device an excellent choice for space-constrained

audio systems in far-field microphone recording

applications.

The TAA3020 is specified from –40°C to +105°C, and

is offered in a 20-pin WQFN package.

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