1 Features

• Stereo low-power audio ADC

– Performance:

• Line/Microphone differential input dynamic

range: 105dB

• THD+N: –97dB

• Channel summing mode supports high

SNR: 108dB

– Input voltage:

• Differential, 2VRMS full-scale input

• Single-ended, 1VRMS full-scale input

– Input mix/mux options

– ADC sample rate (fS) = 4kHz to 768kHz

– Programmable microphone bias (up to 3V)

– Up to 4 Record Channels

• 2 Channel Analog + 2 Channel Digital

• 1 Channel Analog + 3 Channel Digital

• 4 Channel Digital

• Stereo differential or Quad single-ended high

performance audio DAC

– Performance:

• DAC to differential line-out dynamic range:

114dB

• DAC to differential headphone-out dynamic

range: 114dB

• THD+N:–96dB

– Line-out/headphone output voltage :

• Differential, 2VRMS full-scale

• Pseudo-differential, 1VRMS full-scale

• Single-ended, 1VRMS full-scale

– DAC sample rate (fS) = 4kHz to 768kHz

• Common features

– Analog input to output bypass

– Voice activity detection

– Ultrasonic activity detection

– Battery and thermal foldback protection

– Signal distortion limiter

– Low and Ultra-low latency filter options

– Programmable HPF and Biquad filters

– I2C or SPI control interface

– Audio serial interface

• Format: TDM, I2S or Left-justified (LJ)

• Word length: 16, 20, 24 or 32 bits

• Bus controller and target modes

– Programmable PLL for flexible clocking

– Auto clock and sample rate detection

– Low power modes

• 8mW for 2-Ch recording (1.8V Supply)

• 10.5mW for 2-Ch playback (1.8V Supply)

– 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

• Land Mobile Radio

• IP Network Camera

• IP Telephone

• Video Conference System

• Smart Speakers

• Professional audio mixer/control surface

3 Description

The TAC5112 is a low-power stereo audio codec

with 2VRMS differential input, 105dB stereo ADC and

2VRMS differential output, 114dB stereo or 1VRMS

single-ended output, 107dB quad DAC. The TAC5112

supports both differential and single-ended inputs

and outputs. The ADC supports both line/microphone

input signals with options for AC or DC coupling

configurations. The DAC outputs can be configured

for either line-output or headphone loads. The DAC

can drive up to 62.5mW into a 16Ω headphone

load. The TAC5112 integrates programable channel

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

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

programmable EQ and biquad filters, low-latency

and ultra-low latency filter modes, and allows for

sample rates up to 768kHz for both ADC and DAC

signal chains. The TAC5112 supports time-division

multiplexing (TDM), I2S, or left-justified (LJ) audio

formats, and can be controlled with I2C or SPI. These

integrated high-performance features, along with a

single supply operation, makes TAC5112 an excellent

choice for space-constrained audio applications.