Overview
The PCM1822IRTER is a high-performance audio analog-to-digital converter (ADC) produced by Texas Instruments. This model is designed for applications requiring high-fidelity audio capture, such as professional audio equipment, consumer electronics, and automotive audio systems. The PCM1822IRTER stands out for its exceptional dynamic range, low distortion, and flexible configuration options, making it a competitive choice in the market for audio signal processing.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Channels | 2 | Stereo | |
| Resolution | 32 | bit | |
| Sampling Rate | 8 - 192 | kHz | |
| Dynamic Range | 117 | dB | With dynamic range enhancer |
| THD+N | -95 | dB | At 1V RMS full-scale input |
| Power Supply | 3.3 | V | I/O and AVDD |
| Power Consumption | 19.6 - 21.3 | mW/channel | At 16 - 48 kHz sampling rate |
| Interface | I2S, TDM | 32-bit, 2-channel |
Key Features
- High dynamic range and low distortion for superior audio quality.
- Flexible audio serial data interface supports I2S and TDM formats.
- Hardware pin control for easy configuration.
- Integrated high-performance audio PLL for precise clocking.
- Automatic power-down on audio clock loss to save energy.
Applications
The PCM1822IRTER is ideal for a variety of high-end audio applications. In professional audio equipment, it ensures pristine sound capture for recording and broadcasting. In consumer electronics, it enhances the audio quality of home theater systems and portable audio devices. In automotive systems, it delivers clear and reliable audio for in-car entertainment and communication systems.
Q & A
What is the dynamic range of the PCM1822IRTER?
The dynamic range is 117 dB with the dynamic range enhancer enabled.
What sampling rates does the PCM1822IRTER support?
It supports sampling rates from 8 kHz to 192 kHz.
What is the power consumption of the PCM1822IRTER?
It consumes between 19.6 mW and 21.3 mW per channel at sampling rates of 16 kHz to 48 kHz.
What interfaces does the PCM1822IRTER support?
It supports I2S and TDM audio serial data interfaces.
Can the PCM1822IRTER operate on a single power supply?
Yes, it operates on a single 3.3 V power supply for both I/O and AVDD.
What is the THD+N performance of the PCM1822IRTER?
The THD+N is -95 dB at a 1V RMS full-scale input.
Is the PCM1822IRTER suitable for automotive applications?
Yes, it is well-suited for automotive audio systems due to its high performance and reliability.
Does the PCM1822IRTER have an integrated PLL?
Yes, it includes a high-performance audio PLL for precise clocking.
What is the resolution of the PCM1822IRTER?
It has a 32-bit resolution.
Does the PCM1822IRTER support automatic power-down?
Yes, it automatically powers down when the audio clock is lost to conserve energy.
