Overview
The PCM3168A-Q1, produced by Texas Instruments, is a high-performance, single-chip, 24-bit audio coder and decoder (codec) designed for various audio applications. This device features a 6-channel analog-to-digital converter (ADC) and an 8-channel digital-to-analog converter (DAC), both employing delta-sigma (ΔΣ) modulators. It supports single-ended and differential-selectable analog inputs and differential outputs, making it versatile for different audio interface requirements.
The PCM3168A-Q1 is available in an HTQFP-64 PowerPAD™ package and is suitable for both consumer and automotive audio applications, with an operating temperature range of –40°C to 85°C for consumer grade and –40°C to 105°C for automotive grade.
Key Specifications
| Parameter | Specification |
|---|---|
| ADC Channels | 6 channels |
| ADC Resolution | 24-bit |
| ADC Sampling Rate | 8 kHz to 96 kHz |
| ADC THD+N | –93 dB (Differential and Single-Ended) |
| ADC SNR | 107 dB (Differential), 104 dB (Single-Ended) |
| ADC Dynamic Range | 107 dB (Differential), 104 dB (Single-Ended) |
| ADC Input Voltage | 2 V RMS (Differential), 1 V RMS (Single-Ended) |
| DAC Channels | 8 channels |
| DAC Resolution | 24-bit |
| DAC Sampling Rate | 8 kHz to 192 kHz |
| DAC THD+N | –94 dB |
| DAC SNR | 112 dB |
| DAC Dynamic Range | 112 dB |
| DAC Output Voltage | 8 V PP (Differential) |
| Control Interface | Four-Wire SPI, Two-Wire I2C |
| Power Supplies | 5 V for Analog, 3.3 V for Digital |
| Package | HTQFP-64 PowerPAD™ |
| Operating Temperature Range | –40°C to 85°C (Consumer), –40°C to 105°C (Automotive) |
Key Features
- High-performance 24-bit ΔΣ ADC and DAC.
- Support for single-ended and differential-selectable analog inputs and differential outputs.
- Flexible control through four-wire SPI or two-wire I2C serial interfaces, as well as hardware control mode.
- Digital attenuation, soft mute, and de-emphasis functions for both ADC and DAC.
- Support for various audio interface formats including I2S, left-justified, right-justified, DSP, and TDM.
- Analog lowpass filter and 4x/8x oversampling digital filter included.
- External reset pin and ADC/DAC simultaneous operation.
- Independent master and slave modes for ADC and DAC.
Applications
- Car Audio External Amplifiers
- Car Audio AVN Applications
- Home Theaters
- AV Receivers
- Other high-performance audio systems requiring precise and versatile audio coding and decoding.
Q & A
- What is the resolution of the ADC and DAC in the PCM3168A-Q1?
The ADC and DAC in the PCM3168A-Q1 are both 24-bit resolution.
- What are the supported sampling rates for the ADC and DAC?
The ADC supports sampling rates from 8 kHz to 96 kHz, while the DAC supports sampling rates from 8 kHz to 192 kHz.
- What types of analog inputs does the PCM3168A-Q1 support?
The PCM3168A-Q1 supports both single-ended and differential-selectable analog inputs.
- What control interfaces are available for the PCM3168A-Q1?
The device can be controlled through a four-wire SPI or a two-wire I2C serial interface, as well as through hardware control mode.
- What are the power supply requirements for the PCM3168A-Q1?
The device requires 5 V for the analog section and 3.3 V for the digital section.
- What is the operating temperature range for the PCM3168A-Q1?
The operating temperature range is –40°C to 85°C for consumer grade and –40°C to 105°C for automotive grade.
- What package type is the PCM3168A-Q1 available in?
The device is available in an HTQFP-64 PowerPAD™ package.
- What audio interface formats does the PCM3168A-Q1 support?
The device supports I2S, left-justified, right-justified, DSP, and TDM formats.
- Does the PCM3168A-Q1 include any built-in filters?
Yes, it includes an analog lowpass filter and a 4x/8x oversampling digital filter.
- Can the ADC and DAC operate simultaneously?
Yes, the ADC and DAC can operate simultaneously.
