Overview
The TLV320AIC23BIRHDR, produced by Texas Instruments, is a high-performance stereo audio codec designed with highly integrated analog functionality. This component is ideal for portable digital audio-player and recorder applications, such as MP3 digital audio players. It utilizes multibit sigma-delta technology with integrated oversampling digital interpolation filters, supporting data-transfer word lengths of 16, 20, 24, and 32 bits, and sample rates from 8 kHz to 96 kHz. The codec features low power consumption and flexible power management, making it suitable for battery-powered devices.
Key Specifications
| Parameter | Description |
|---|---|
| ADC Sigma-Delta Modulator | Third-order multibit architecture, up to 90-dBA SNR at 96 kHz |
| DAC Sigma-Delta Modulator | Second-order multibit architecture, up to 100-dBA SNR at 96 kHz |
| Sample Rates | 8 kHz to 96 kHz |
| Data-Transfer Word Lengths | 16, 20, 24, and 32 bits |
| Headphone Amplifier | 30 mW per channel into 32 Ω from a 3.3-V analog supply voltage |
| Power Consumption | 23 mW during playback, <150 µW in standby, <15 µW in power-down |
| Clocking | Internal oscillator with 12-MHz external crystal, supports 12 MHz or 6 MHz system clock |
| Package | 32-Pin MicroStar Junior, 28-Pin TSSOP, and 28-Pin PQFP options |
| Operating Temperature | -40°C to 85°C |
Key Features
- Glueless interface to TI McBSPs
- Integrated total electret-microphone biasing and buffering solution
- Low-noise MICBIAS pin at 3/4 AVDD for biasing of electret capsules
- Integrated buffer amplifier with tunable fixed gain of 1 to 5 and additional control-register selectable buffer gain of 0 dB or 20 dB
- Stereo-line inputs with analog bypass path
- Integrated programmable gain amplifier
- ADC multiplexed input for stereo-line inputs and microphone
- Stereo-line outputs and analog stereo mixer for DAC and analog bypass path
- Volume control with mute on input and output
- Highly efficient linear headphone amplifier
- Flexible power management under total software control
Applications
The TLV320AIC23BIRHDR is ideally suited for portable digital audio-player and recorder applications, such as MP3 digital audio players, solid-state audio recorders, and other battery-powered audio devices. Its compact design and low power consumption make it an excellent choice for applications requiring high-fidelity audio recording and playback in a space-saving and cost-effective solution.
Q & A
- What is the TLV320AIC23BIRHDR?
The TLV320AIC23BIRHDR is a high-performance stereo audio codec produced by Texas Instruments, designed for portable digital audio applications.
- What are the supported sample rates and word lengths?
The TLV320AIC23BIRHDR supports sample rates from 8 kHz to 96 kHz and data-transfer word lengths of 16, 20, 24, and 32 bits.
- What is the signal-to-noise ratio (SNR) of the ADC and DAC?
The ADC has an SNR of up to 90 dBA, and the DAC has an SNR of up to 100 dBA at audio sampling rates up to 96 kHz.
- How much power does the headphone amplifier consume?
The headphone amplifier can deliver 30 mW per channel into 32 Ω from a 3.3-V analog supply voltage.
- What are the power consumption modes of the TLV320AIC23BIRHDR?
The power consumption modes include 23 mW during playback, less than 150 µW in standby, and less than 15 µW in power-down.
- What clocking options are available?
The TLV320AIC23BIRHDR features an internal oscillator that can provide a system clock at either 12 MHz or 6 MHz using a 12-MHz external crystal.
- What are the package options for the TLV320AIC23BIRHDR?
The component is available in 32-Pin MicroStar Junior, 28-Pin TSSOP, and 28-Pin PQFP packages.
- What is the operating temperature range of the TLV320AIC23BIRHDR?
The operating temperature range is -40°C to 85°C.
- What applications is the TLV320AIC23BIRHDR suited for?
The TLV320AIC23BIRHDR is suited for portable digital audio-player and recorder applications, such as MP3 digital audio players and solid-state audio recorders.
- Does the TLV320AIC23BIRHDR support analog bypass paths?
Yes, it supports an analog bypass path for stereo-line inputs and the headphone amplifier, allowing the codec to be bypassed if needed.
