TAA5212中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書

1 Features

? Stereo high performance audio ADC

– Performance:

? Line/Microphone differential input dynamic

range: 119dB

? Differential input THD+N: –98dB

? Channel summing mode supports high

SNR: 122dB

– Input voltage:

? Differential, 2VRMS full-scale inputs

? Single-ended, 1VRMS full-scale inputs

– Input mix/mux options

– Sample rate (fS) = 4kHz to 768kHz

– Programmable microphone bias (up to 3V)

? Key Features

– Up to 4 Record Channels

? 2 Channel Analog + 2 Channel Digital

? 1 Channel Analog + 3 Channel Digital

? 4 Channel Digital

– Voice activity detection

– Ultrasonic activity detection

– Low-latency and Ultra low-latency decimation

filter selection options

– Programmable HPF and Biquad filters

– I2C or SPI Control Interface

– Audio Serial Interface

? Format: TDM, I2S or Left Justified (LJ)

? Bus Controller and Target Modes

? Daisy chain in TDM Mode

? Word Length: 16, 20, 24 or 32 Bits

– Programmable PLL for flexible clocking

– Auto clock and sample rate detection

– Low power modes

? 5mW for 1-Ch and 8mW for 2-Ch recording

(1.8V Supply)

? Differential input dynamic range: 105dB

– Single Supply Operation AVDD: 1.8V or 3.3V

– I/O Supply Operation: 1.2V or 1.8V or 3.3V

– Temperature grade 1: –40°C ≤ TA ≤ +125°C

2 Applications

? Video Conference System

? IP Network Camera

? IP Telephone

? Smart Speakers

? Professional microphones & wireless systems

? Professional audio mixer/control surface

3 Description

The TAA5212 is a high-performance stereo audio

ADC with 2VRMS differential input and 119dB dynamic

range. The TAA5212 supports both differential

and single-ended line/microphone input signals with

options for AC or DC coupling configurations.

The TAA5212 integrates programable channel gain,

digital volume control, a low-jitter phase-locked loop

(PLL), a programmable digital high-pass filter (HPF),

programmable EQ and biquad filters, decimation

filters with low-latency and ultra low-latency options,

and supports sample rates up to 768kHz. The

TAA5212 supports time-division multiplexing (TDM),

I2S, or left-justified (LJ) audio formats in controller

and target modes, and can be controlled with I2C

or SPI. These integrated high-performance features,

along with a single supply operation, make TAA5212

an excellent choice for space-constrained audio

applications.