1 Features

• AEC-Q100 qualified for automotive applications

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

• ADC Channel

– Performance:

• Line differential input dynamic range: 100dB

• Mic differential input dynamic range: 100dB

• THD+N: –95dB

• Channel summing mode supports high SNR

– Input voltage:

• Differential, 10-VRMS full-scale inputs

• Single-ended, 5-VRMS full-scale inputs

– Sample rate (fS) = 8kHz to 768kHz

– Programmable microphone bias (5V to 10V):

• With an integrated efficient boost converter,

or

• With external high voltage HVDD supply

– Programmable microphone input fault

diagnostics:

• Open inputs or shorted inputs

• Short to ground, MICBIAS or VBAT

• Microphone bias over current protection

• DAC Channel

– DAC performance:

• DAC to Line Out Dynamic Range: 106dB

• DAC to HP Out Dynamic Range: 106dB

• THD+N: –95dB

– Head Phone/Line Out output voltage:

• Differential, 2-VRMS full-scale

• Single-ended, 1-VRMS full-scale

– DAC sample Rates (fs) = 8KHz to 768KHz

• Common Features

– Low Latency Filter Selection

– Programmable HPF and Biquad Filters

– I2C Control Interface

– Audio Serial Interface

• Format: TDM, I2S or Left Justified

• Word Length: 16,20,24 or 32 Bits

– Programmable PLL for Flexible Clocking

– Single Supply Operation: 3.3V

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

2 Applications

• Emergency Call- E-Call

• Telematics Control Unit

• Automotive active noise cancellation

• Automotive head units

3 Description

The TAC5311-Q1 is a high performance Mono Codec

with 10VRMS differential Input, 100dB Mono ADC

and 2VRMS Mono DAC Channels. The TAC5311-Q1

supports both differential and Single Ended input

and output. Device supports both Microphone and

Line In input on ADC Channel. DAC Output can

be configured for either Line Out or Head Phone

Load. TAC5311-Q1 can drive up to 62.5mW into

a Headphone Load. The device also offers an

integrated high-voltage, programmable microphone

bias, and input diagnostic circuitry that allows

direct connection to microphone-based automotive

systems with full fault diagnostic capability for directcoupled

inputs. The TAC5311-Q1 integrates an

efficient boost converter to generate a high voltage

microphone bias using an external, low-voltage,

3.3V supply, The device can also directly use an

external high-voltage supply (HVDD), which is a

readily available supply in the system to generate

the high-voltage, programmable microphone bias.

The TAC5311-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 filter

modes. It allows for sample rates up to 768kHz.

The TAC5311-Q1 supports time-division multiplexing

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

can be controlled with I2C. These integrated highperformance

features, along with a single, 3.3V

supply operation, makes TAC5311-Q1 an excellent

choice for space-constrained automotive systems.