TAD5112-Q1中文资料德州仪器数据手册PDF规格书

1 Features

• AEC-Q100 qualified for automotive applications

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

• Stereo differential or quad single-ended low-power

audio DAC

– Performance:

• DAC to diffrential line-out dynamic range:

110dB

• DAC to diffrential headphone-out dynamic

range: 109dB

• THD+N: –101dB

– Line-out/headphone output voltage:

• Differential, 2VRMS full-scale

• Psuedo-diffrential, 1VRMS full-scale

• Single-ended, 1VRMS full-scale

– DAC sample Rates (fs) = 4kHz to 768kHz

• Key features

– Analog input to output bypass path

– 4-channel PDM digital microphone record path

– Input and output mix/mux options

– Voice activity detection

– Ultrasonic activity detection

– Ultrasonic signal or tone generator

– Battery and thermal foldback protection

– Signal distortion limiter

– Low and ultra-low latency filter options

– Programmable HPF and biquad filters

– I2C & 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

• Daisy chain in TDM mode

– Programmable PLL for flexible clocking

– Auto clock and sample rate detection

– Low power modes

• 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

• Telematics control unit

• Automotive head unit

• Digital cockpit processing unit

• Rear seat entertainment

• Vehicle instrument cluster

3 Description

The TAD5112-Q1 is an automotive low-power audio

DAC with 2VRMS differential output, 110dB dynamic

range stereo channels or 1VRMS single-ended output,

107dB dynamic range quad channels. The TAD5112-

Q1 supports both differential and single-ended inputs

and outputs. The DAC outputs can be configured

for either line-output or headphone loads. The

TAD5112-Q1 can drive up to 62.5mW into a

16Ω headphone load. The TAD5112-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 the DAC and PDM microphone signal-chains.

The TAD5112-Q1 supports analog input to output

bypass option and also recording up to four-channel

digital microphones with the PDM interface. Data

from analog-in and digital-in can be mixed inside

the device as well. The TAD5112-Q1 supports timedivision

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, make TAD5112-

Q1 an excellent choice for space-constrained audio

applications.