Overview
The PCM1862DBT is a dual-channel, software-controlled audio ADC (Analog-to-Digital Converter) produced by Texas Instruments. It features a universal front-end and is designed for high-performance audio applications. With a signal-to-noise ratio (SNR) of 103dB, this component is ideal for applications requiring high-quality audio capture. It targets professional audio equipment, consumer electronics, and industrial systems where precise audio processing is essential. Its unique selling points include integrated programmable gain amplifiers (PGA), support for multiple digital interfaces, and low power consumption, making it a competitive choice in the market.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Number of ADC Channels | 2 | ||
| Analog Inputs | 8 | ||
| Digital Audio Interface | I2C | ||
| Control Interface | I2C | ||
| Sampling Rate (Max) | 192 | kHz | |
| ADC SNR (Typ) | 103 | dB | |
| Power Supply Voltage | 3.3 | V | Single supply |
| Power Consumption | < 85 | mW | At 3.3V |
Key Features
- Integrated programmable gain amplifier (PGA) with adjustable gain from -12dB to +32dB.
- Supports multiple digital audio interfaces, including I2C, for flexible system integration.
- High SNR of 103dB ensures superior audio quality.
- Low power consumption (< 85mW) for energy-efficient designs.
- Universal front-end supports a wide range of input signals, from microphone to line-level inputs.
Applications
The PCM1862DBT is widely used in various audio processing applications. It is particularly suitable for professional audio equipment such as mixers and recorders, consumer electronics like smart speakers and soundbars, and industrial systems requiring high-fidelity audio capture. Its ability to handle multiple input types and its low power consumption make it an excellent choice for portable and battery-powered devices.
Q & A
1. What is the maximum sampling rate of the PCM1862DBT?
The maximum sampling rate is 192 kHz.
2. What is the typical SNR of the PCM1862DBT?
The typical SNR is 103 dB.
3. Does the PCM1862DBT support microphone inputs?
Yes, it supports microphone inputs with integrated bias and gain control.
4. What is the power supply voltage requirement?
It operates on a single 3.3V power supply.
5. Can the PCM1862DBT be used in battery-powered devices?
Yes, its low power consumption makes it suitable for battery-powered applications.
6. What digital interfaces does the PCM1862DBT support?
It supports I2C for control and digital audio interfaces.
7. Is the PCM1862DBT suitable for high-fidelity audio applications?
Yes, its high SNR and integrated PGA make it ideal for high-fidelity audio.
8. How many ADC channels does the PCM1862DBT have?
It has 2 ADC channels.
9. What is the power consumption of the PCM1862DBT?
It consumes less than 85 mW at 3.3V.
10. Does the PCM1862DBT support software control?
Yes, it is a software-controlled audio ADC with configurable settings via I2C.
