Overview
The TLV320AIC3254-Q1 is a flexible, low-power, low-voltage stereo audio codec designed by Texas Instruments. It features programmable inputs and outputs, PowerTune capabilities, fully-programmable miniDSP cores, fixed predefined and parameterizable signal processing blocks, integrated PLL, and integrated LDOs. This codec is ideal for portable battery-powered audio and telephony applications due to its extensive signal processing options and low power consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 32-pin QFN (RHB) |
| Operating Temperature Range | –40°C to 85°C |
| SNR (DAC) | 100 dB |
| Power Consumption (DAC Playback) | 4.1 mW (Stereo 48 ksps) |
| SNR (ADC) | 93 dB |
| Power Consumption (ADC Record) | 6.1 mW (Stereo 48 ksps) |
| Analog Supply Voltage | 1.5 V to 1.95 V |
| Digital Supply Voltage | 1.26 V to 1.95 V |
| Digital IO Voltage | 1.1 V to 3.6 V |
| Internal Clock Source | MCLK, BCLK, GPIO, or internal PLL |
Key Features
- Qualified for Automotive Applications (AEC-Q100)
- Stereo Audio DAC with 100 dB SNR and Stereo Audio ADC with 93 dB SNR
- PowerTune™ technology for optimal power-performance trade-off
- Two fully-programmable miniDSP cores for application-specific algorithms
- Six single-ended or three fully-differential analog inputs
- Stereo analog and digital microphone inputs, stereo headphone outputs, and stereo line outputs
- Very low-noise PGA and low power analog bypass mode
- Programmable microphone bias and programmable PLL
- Integrated LDOs for generating analog and digital supplies
Applications
The TLV320AIC3254-Q1 is ideal for various applications, including:
- Portable battery-powered audio devices
- Telephony applications
- Automotive audio systems
- Devices requiring advanced DSP filtering, active noise cancellation, and acoustic echo cancellation
Q & A
- What is the operating temperature range of the TLV320AIC3254-Q1?
The operating temperature range is –40°C to 85°C.
- What is the SNR of the stereo audio DAC?
The SNR of the stereo audio DAC is 100 dB.
- What is the power consumption during stereo 48 ksps DAC playback?
The power consumption during stereo 48 ksps DAC playback is 4.1 mW.
- Does the TLV320AIC3254-Q1 support programmable microphone bias?
- What are the integrated supply voltage regulators in the TLV320AIC3254-Q1?
The device includes integrated LDOs to generate the appropriate analog or digital supply from input voltages ranging from 1.8 V to 3.6 V.
- Can the TLV320AIC3254-Q1 be used in automotive applications?
- What is the purpose of PowerTune technology in the TLV320AIC3254-Q1?
PowerTune technology allows the device to be tuned to an optimum power-performance trade-off, making it suitable for both low-power mobile and higher-power docked environments.
- How many miniDSP cores does the TLV320AIC3254-Q1 have?
The device features two fully-programmable miniDSP cores.
- What types of analog inputs does the TLV320AIC3254-Q1 support?
The device supports six single-ended or three fully-differential analog inputs.
- What are the possible configurations for the high-power outputs?
The high-power outputs can be configured in multiple ways, including stereo and mono BTL.
