Overview
The TLV320AIC23BIRHD from Texas Instruments is a high-performance stereo audio codec designed for highly integrated analog functionality. This device is ideal for portable digital audio-player and recorder applications, such as MP3 digital audio players. It features advanced multibit sigma-delta technology for both analog-to-digital converters (ADCs) and digital-to-analog converters (DACs), ensuring high-fidelity audio recording and playback. The codec supports data-transfer word lengths of 16, 20, 24, and 32 bits, with sample rates ranging from 8 kHz to 96 kHz. Its compact design, using either a 28-pin TSSOP or a VQFN-28 package, makes it suitable for space-constrained and power-sensitive applications.
Key Specifications
| Parameter | Description |
|---|---|
| Package Type | VQFN-28 (5x5 mm), 28-Pin TSSOP |
| Number of ADCs/DACs | 2 ADCs, 2 DACs |
| ADC/DAC Resolution | 16-bit to 32-bit |
| Sampling Rate | 8 kHz to 96 kHz |
| Signal-to-Noise Ratio (SNR) | Up to 90 dB (ADC), Up to 100 dB (DAC) |
| Operating Supply Voltage | 2.7 V to 3.6 V (Buffer), 3.3 V nominal (Analog) |
| Operating Temperature Range | -40°C to 85°C |
| Power Consumption | Less than 23 mW during playback |
| Interface Type | I²C, SPI |
Key Features
- Stereo audio interface with I²C and serial interfaces for control and data transfer
- Two analog-to-digital converters (ADCs) with 16-bit to 32-bit resolution using multibit sigma-delta technology
- Two digital-to-analog converters (DACs) for playback applications
- Integrated analog features: stereo-line inputs, analog bypass path, stereo headphone amplifier with analog volume control and mute, and electret-microphone-capsule biasing and buffering solution
- Programmable gain microphone amplifier (0 dB or 20 dB)
- Low power consumption and flexible power management for extended battery life in portable applications
- Internal oscillator with selectable clock divider for system clock generation
Applications
- Portable digital audio players and recorders, such as MP3 players
- Consumer electronics: audio players, home entertainment systems
- Industrial control systems: factory automation, process control
- Other applications requiring high-quality audio processing
Q & A
- What is the TLV320AIC23BIRHD used for?
The TLV320AIC23BIRHD is used for high-performance stereo audio applications, particularly in portable digital audio players and recorders.
- What are the key features of the TLV320AIC23BIRHD?
Key features include stereo audio interface, multibit sigma-delta ADCs and DACs, integrated analog functionality, and low power consumption.
- What are the supported sample rates and resolutions?
The device supports sample rates from 8 kHz to 96 kHz and resolutions of 16-bit to 32-bit.
- What is the operating temperature range of the TLV320AIC23BIRHD?
The operating temperature range is -40°C to 85°C.
- How does the TLV320AIC23BIRHD manage power consumption?
The device features low power consumption and flexible power management, allowing selective shutdown of codec functions to extend battery life.
- What interfaces does the TLV320AIC23BIRHD support?
The device supports I²C and SPI interfaces for control and data transfer.
- What is the package type of the TLV320AIC23BIRHD?
The device is available in VQFN-28 (5x5 mm) and 28-Pin TSSOP packages.
- What is the signal-to-noise ratio (SNR) of the TLV320AIC23BIRHD?
The SNR is up to 90 dB for ADCs and up to 100 dB for DACs.
- Can the TLV320AIC23BIRHD be used in industrial applications?
Yes, it can be used in industrial control systems, including factory automation and process control.
- How does the TLV320AIC23BIRHD support microphone inputs?
The device includes an integrated adjustable microphone amplifier and a programmable gain microphone amplifier, along with electret-microphone-capsule biasing and buffering.
