Overview
The PCM3168A-Q1 device, produced by Texas Instruments, is a high-performance, single-chip, 24-bit audio coder and decoder (CODEC) designed for multi-channel audio applications. It features six-channel analog-to-digital converters (ADCs) and eight-channel digital-to-analog converters (DACs) with differential and single-ended selectable analog inputs and differential outputs. The device supports a wide range of sampling rates and audio interface formats, making it versatile for various audio systems.
Key Specifications
| Parameter | Specification |
|---|---|
| Resolution | 24-bit |
| ADC Channels | 6 |
| DAC Channels | 8 |
| Sampling Rate (ADC) | 8 kHz to 96 kHz |
| Sampling Rate (DAC) | 8 kHz to 192 kHz |
| THD+N (ADC) | –93 dB (Differential and Single-Ended) |
| THD+N (DAC) | –94 dB |
| SNR (ADC) | 107 dB (Differential), 104 dB (Single-Ended) |
| SNR (DAC) | 112 dB |
| Dynamic Range (ADC) | 107 dB (Differential), 104 dB (Single-Ended) |
| Dynamic Range (DAC) | 112 dB |
| System Clock | 256 fS, 384 fS, 512 fS, 768 fS (ADC); 128 fS, 192 fS, 256 fS, 384 fS, 512 fS, 768 fS (DAC) |
| Voltage Input (ADC) | 2 V RMS (Differential), 1 V RMS (Single-Ended) |
| Voltage Output (DAC) | 8 V PP |
| Package | HTQFP-64 (10x10 mm body) |
| Operating Temperature Range | –40°C to 85°C (Consumer Grade), –40°C to 105°C (Automotive Audio Grade) |
| Power Supplies | 5 V (Analog), 3.3 V (Digital) |
Key Features
- High-performance 24-bit ΔΣ ADC and DAC
- Support for differential and single-ended analog inputs and differential outputs
- Flexible audio interface formats: I²S, left-justified, right-justified, DSP, and TDM
- Four-wire SPI and two-wire I²C compatible serial control interfaces
- Hardware control mode with user-programmable functions through four control pins
- Digital attenuation, soft mute, and de-emphasis capabilities
- On-chip highpass filter and analog lowpass filter included
- Multi-functions through SPI or I²C interface, including audio interface mode and format select, digital de-emphasis, etc.
Applications
The PCM3168A-Q1 is suitable for a variety of audio applications, including professional audio equipment, automotive audio systems, consumer electronics such as home theaters and soundbars, and industrial audio systems. Its high performance and flexibility make it an ideal choice for systems requiring high-quality multi-channel audio conversion.
Q & A
- What is the resolution of the PCM3168A-Q1?
The PCM3168A-Q1 has a 24-bit resolution. - How many ADC and DAC channels does the PCM3168A-Q1 have?
The device features six ADC channels and eight DAC channels. - 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 are the THD+N and SNR specifications for the ADC and DAC?
The ADC has a THD+N of –93 dB and an SNR of 107 dB (differential) and 104 dB (single-ended). The DAC has a THD+N of –94 dB and an SNR of 112 dB. - What are the supported audio interface formats?
The device supports I²S, left-justified, right-justified, DSP, and TDM formats. - How can the PCM3168A-Q1 be controlled?
The device can be controlled through a four-wire SPI-compatible interface, a two-wire I²C-compatible serial interface, or hardware control mode using four control pins. - What is the package type and size of the PCM3168A-Q1?
The device is available in a HTQFP-64 package with a 10x10 mm body size. - What are the operating temperature ranges for the PCM3168A-Q1?
The operating temperature ranges are –40°C to 85°C for consumer grade and –40°C to 105°C for automotive audio grade. - What power supplies are required for the PCM3168A-Q1?
The device requires 5 V for analog and 3.3 V for digital power supplies. - Does the PCM3168A-Q1 include any on-chip filters?
Yes, the device includes an on-chip highpass filter and an analog lowpass filter.
