1 Features

• Qualified for Automotive Applications

• AEC-Q100 Qualified With the Following Results:

– Device Temperature Grade 3: –40°C to 105°C

Ambient Operating Temperature Range

– Device HBM ESD Classification Level 2

– Device CDM ESD Classification Level C6

• Stereo Audio DAC:

– 102-dBA Signal-to-Noise Ratio

– 16-, 20-, 24-, or 32-Bit Data

– Supports Sample Rates From 8 kHz to 96 kHz

– 3D, Bass, Treble, EQ, De-Emphasis Effects

– Flexible Power Saving Modes and

Performance are Available

• Stereo Audio ADC:

– 92-dBA Signal-to-Noise Ratio

– Supports Sample Rates From 8 kHz to 96 kHz

– Digital Signal Processing and Noise Filtering

available during record

• Six Audio Input Pins:

– One Stereo Pair of Single-Ended Inputs

– One Stereo Pair of Fully Differential Inputs

• Six Audio Output Drivers:

– Fully Differential or Single-Ended Stereo

Headphone Drivers

– Fully Differential Stereo Line Outputs

• Low Power: 14-mW Stereo, 48-kHz Playback With

3.3-V Analog Supply

• Ultralow-Power Mode With Passive Analog Bypass

• Programmable Input/Output Analog Gains

• Automatic Gain Control (AGC) for Record

• Programmable Microphone Bias Level

• Programmable PLL for Flexible Clock Generation

• I2C Control Bus

• Audio Serial Data Bus Supports I2S, Left/

RightJustified, DSP, and TDM Modes

• Extensive Modular Power Control

• Power Supplies:

– Analog: 2.7 V to 3.6 V

– Digital Core: 1.525 V to 1.95 V

– Digital I/O: 1.1 V to 3.6 V

2 Applications

• Cluster

• Head Unit

• Car Audio

• Emergency Call (E-Call)

• Telematics Control Unit

3 Description

The TLV320AIC3104-Q1 is a low-power stereo audio

codec with stereo headphone amplifiers, as well as

multiple inputs and outputs that are programmable

in single-ended or fully differential configurations.

Extensive register-based power control is included,

enabling stereo 48-kHz DAC playback as low as 14

mW from a 3.3-V analog supply, making it ideal for car

audio applications in cluster and head unit systems.

The record path of the TLV320AIC3104-Q1 contains

integrated microphone bias, digitally controlled stereo

microphone preamplifier, and automatic gain control

(AGC), with mix/mux capability among the multiple

analog inputs. Programmable filters are available

during record which can remove audible noise

that can occur during noisy and unpredictable

environments, such as when an e-call system

is activated. The playback path includes mix/mux

capability from the stereo DAC and selected inputs,

through programmable volume controls, to the various

outputs.