Overview
The TLV320AIC26 is a high-performance, low-power stereo audio codec designed by Texas Instruments. It is highly integrated and suitable for portable computing, communication, and entertainment applications. The device features a register-based architecture, allowing all functions to be controlled through registers and onboard state machines. It includes a stereo audio DAC, a mono audio ADC, battery monitors, auxiliary inputs, and a temperature monitor. The TLV320AIC26 supports various audio standard protocols such as I2S, DSP, and Left/Right Justified, and it can operate in master or slave mode with flexible clock generation capabilities.
Key Specifications
| Parameter | Min | Max | Units | |
|---|---|---|---|---|
| Audio Resolution | 16/20/24/32 bits | |||
| Playback SNR | 97 dBA | dBA | ||
| Sampling Rate | 8 kHz | 48 kHz | ksps | |
| Output Power (8-Ω load) | 325 mW | mW | ||
| Output Power (16-Ω headphones) | 30 mW per channel | mW | ||
| Analog Supply Voltage | 2.7 V | 3.6 V | V | |
| Digital Supply Voltage | 1.525 V | 1.95 V | V | |
| Operating Temperature Range | -40°C | 85°C | °C | |
| Package Type | 32-lead QFN |
Key Features
- High-performance stereo audio playback and mono recording capabilities.
- Programmable digital audio effects processor for bass, treble, midrange, or equalization playback processing.
- Flexible audio output drivers with software-programmable low or high-power drive modes.
- Support for I2S, DSP, and Left/Right Justified audio standard protocols in master or slave mode.
- On-chip programmable PLL for flexible clock generation.
- 12-bit measurement ADC and internal reference voltage.
- Two battery measurement inputs capable of reading battery voltages up to 6 V.
- On-chip temperature sensor with 0.3°C resolution.
- Virtual ground (VGND) output driver to eliminate ac-coupling capacitors for headphone outputs.
Applications
The TLV320AIC26 is designed for use in various portable and consumer electronics applications, including:
- Portable computing devices.
- Communication devices such as smartphones and tablets.
- Entertainment devices like MP3 players and handheld game consoles.
- Other audio-centric devices requiring high-quality, low-power audio processing.
Q & A
- What is the maximum sampling rate supported by the TLV320AIC26?
The TLV320AIC26 supports sampling rates up to 48 ksps and can operate at various standard audio rates.
- What are the power supply voltage ranges for the TLV320AIC26?
The analog supply voltage (AVDD) ranges from 2.7 V to 3.6 V, and the digital supply voltage (DVDD) ranges from 1.525 V to 1.95 V.
- What types of audio output configurations are supported by the TLV320AIC26?
The device supports configurations to drive up to 325 mW into an 8-Ω speaker, 16-Ω stereo headphones, and stereo line-level output.
- Does the TLV320AIC26 have built-in battery monitoring capabilities?
Yes, it has two battery measurement inputs capable of reading battery voltages up to 6 V.
- What is the resolution of the temperature sensor in the TLV320AIC26?
The on-chip temperature sensor has a resolution of 0.3°C.
- What audio standard protocols are supported by the TLV320AIC26?
The device supports I2S, DSP, and Left/Right Justified audio standard protocols in master or slave mode.
- How is the power level of the output drivers controlled in the TLV320AIC26?
The power level of the output drivers is controlled using bit D12 in control register REG-05H/Page2.
- Does the TLV320AIC26 have an on-chip programmable PLL?
Yes, it includes an on-chip programmable PLL for flexible clock generation capability.
- What is the typical power consumption during stereo audio playback at 48 ksps?
The typical power consumption during stereo audio playback at 48 ksps is around 11 mW with a 3.3-V analog supply level.
- What package type is the TLV320AIC26 available in?
The TLV320AIC26 is available in a 32-lead QFN package.
