1 Features

• AEC-Q100 qualified for automotive applications

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

• 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

2 Applications

• Emergency Call (eCall)

• Telematics Control Unit

• Automotive Active Noise Cancellation

• Automotive Head Units

3 Description

The TAC5112-Q1 is an automotive, 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-Q1 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-Q1 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-

Q1 supports time-division multiplexing (TDM), I2S,

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

controlled with I2C or SPI. These integrated highperformance

features, along with a single supply

operation, makes TAC5112-Q1 an excellent choice for

space-constrained automotive systems.