Overview
The TLV320ADC5120IRTER is a high-performance audio analog-to-digital converter (ADC) designed by Burr-Brown™, a part of Texas Instruments. This device is capable of simultaneous sampling of up to two analog channels or four digital channels, making it particularly suitable for pulse density modulation (PDM) microphone input. It supports both line and microphone inputs, as well as single-ended and differential input configurations. The TLV320ADC5120IRTER features programmable channel gain, digital volume control, a programmable microphone bias voltage, a phase-locked loop (PLL), a programmable high-pass filter (HPF), biquad filters, and low-latency filter modes. It can operate at sample rates up to 768 kHz and supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, all controlled via the I2C interface. This device is ideal for space-constrained audio systems, especially in far-field microphone recording applications, and can be powered from a single supply of 3.3V or 1.8V. It operates within a wide temperature range from -40°C to +125°C and is available in a 20-pin WQFN package.
Key Specifications
| Number of ADC channels | 2 |
|---|---|
| Analog inputs | 2 |
| Digital audio interface | I2S, TDM, Left-Justified (LJ) |
| Control interface | I2C |
| Sampling rate (max) (kHz) | 768 |
| ADC SNR (typ) (dB) | 120 |
| Operating temperature range (°C) | -40 to 125 |
| Package | 20-pin WQFN |
| Voltage supply | 1.7V ~ 1.9V, 3V ~ 3.6V |
Key Features
- Biquad digital filter selection
- Low-latency signal processing modes
- I2S serial data interface format
- Programmable HPF and biquad digital filters
- Voice activity detection sensitivity range
- Digital PDM microphone channels
- Programmable channel gain and digital volume control
- Programmable microphone bias or supply voltage generation
- Integrated high-performance audio PLL
- Automatic clock divider setting configurations
- Automatic gain controller (AGC)
Applications
The TLV320ADC5120IRTER is particularly suited for space-constrained audio systems, especially in far-field microphone recording applications. It is ideal for use in various audio systems that require high performance, low latency, and flexible input configurations. This includes applications such as smart speakers, voice assistants, audio recording devices, and other consumer electronics that demand high-quality audio conversion.
Q & A
- What is the maximum sampling rate of the TLV320ADC5120IRTER?
The maximum sampling rate is up to 768 kHz.
- What types of audio interfaces does the TLV320ADC5120IRTER support?
The device supports I2S, TDM, and left-justified (LJ) audio formats.
- What is the typical SNR of the TLV320ADC5120IRTER?
The typical SNR is 120 dB.
- What are the operating voltage ranges for the TLV320ADC5120IRTER?
The device can operate on a single supply of 3.3V or 1.8V, with additional voltage ranges of 1.7V ~ 1.9V and 3V ~ 3.6V.
- What is the operating temperature range of the TLV320ADC5120IRTER?
The operating temperature range is from -40°C to +125°C.
- What package type is the TLV320ADC5120IRTER available in?
The device is available in a 20-pin WQFN package.
- Does the TLV320ADC5120IRTER support both analog and digital microphone inputs?
Yes, it supports both analog and digital (PDM) microphone inputs.
- What control interface does the TLV320ADC5120IRTER use?
The device uses the I2C control interface.
- Does the TLV320ADC5120IRTER have programmable filters?
Yes, it includes programmable high-pass filters (HPF) and biquad digital filters.
- Is the TLV320ADC5120IRTER suitable for far-field microphone recording?
Yes, it is particularly suited for far-field microphone recording applications due to its high performance and low latency features.
