Texas Instruments TLV320AIC3104-Q1 Low-Power Stereo Audio Codec
Texas Instruments TLV320AIC3104-Q1 Low-Power Stereo Audio Codec comes with stereo headphone amplifiers and multiple inputs and outputs that are programmable in single-ended or fully differential configurations. Extensive register-based power control is included, enabling stereo 48kHz DAC playback as low as 14mW from a 3.3V 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 recording, which can remove audible noise 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 to the various outputs through programmable volume controls.
The Texas Instruments TLV320AIC3104-Q1 contains four high-power output drivers and two fully differential output drivers. The high-power output drivers can drive various load configurations, including up to four channels of single-ended 16Ω headphones using AC-coupling capacitors or stereo 16Ω headphones in a capless output configuration. These parameters enable the TLV320AIC3104-Q1 to act as an interface between the MCU and speaker amplifiers, such as the TPA3111D1-Q1, in various audio applications in the infotainment and cluster fields.
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
- 102dBA signal-to-noise ratio
- 16-, 20-, 24-, or 32-bit data
- Supports sample rates from 8kHz to 96kHz
- 3D, bass, treble, EQ, de-emphasis effects
- Flexible power-saving modes and performance are available
- Stereo audio ADC
- 92dBA signal-to-noise ratio
- Supports sample rates from 8kHz to 96kHz
- Digital signal processing and noise filtering are available during recording
- 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 (14mW Stereo, 48kHz playback with 3.3V 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 (2.7V to 3.6V)
- Digital core (1.525V to 1.95V)
- Digital I/O (1.1V to 3.6V)
Applications
- Cluster
- Head unit
- Car audio
- Emergency Call (E-Call)
- Telematics control unit
Simplified Block Diagram
