Overview
The TLV320ADC6120IRTER from Texas Instruments is a high-performance, stereo-channel audio analog-to-digital converter (ADC) designed by Burr-Brown™. This device is capable of simultaneous sampling of up to two analog channels or four digital channels for pulse density modulation (PDM) microphone inputs. It supports both line and microphone inputs, with options for single-ended and differential input configurations. The TLV320ADC6120IRTER is optimized for use in space-constrained audio systems, particularly in far-field microphone recording applications.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | Up to 2 analog, up to 4 digital PDM |
| Sample Rate | 8 kHz to 768 kHz |
| Dynamic Range (DR) | 123 dB (DRE enabled), 113 dB (DRE disabled) |
| THD+N | –95 dB |
| Input Voltage | Differential: 2 V RMS, Single-ended: 1 V RMS |
| Channel Gain | 0 dB to 42 dB, 0.5-dB steps |
| Digital Volume Control | –100 dB to 27 dB |
| Supply Voltage | Single-supply: 3.3 V or 1.8 V |
| Power Consumption | 9.5 mW/channel at 48-kHz sample rate (1.8 V AVDD) |
| Package | 20-pin WQFN (RTE) |
| Operating Temperature | –40°C to +125°C |
| Audio Interface | TDM, I2S, Left-Justified (LJ) |
| Word Length | 16 bits, 20 bits, 24 bits, or 32 bits |
Key Features
- Programmable channel gain and digital volume control
- Programmable microphone bias or supply voltage generation
- Integrated high-performance audio PLL and automatic clock divider setting configurations
- Programmable high-pass filter (HPF) and biquad digital filters
- Low-latency signal processing filter selection
- Automatic gain controller (AGC) and voice activity detection (VAD)
- I2C control interface
- Support for TDM, I2S, and left-justified (LJ) audio formats
Applications
The TLV320ADC6120IRTER is particularly suited for far-field microphone recording applications, such as voice-activated systems, professional microphones, and other audio systems where high performance and low latency are critical. Its compact design and low power consumption make it an excellent choice for space-constrained audio systems.
Q & A
- What is the maximum sample rate of the TLV320ADC6120IRTER?
The maximum sample rate is 768 kHz. - How many channels does the TLV320ADC6120IRTER support?
It supports up to 2 analog channels and up to 4 digital PDM channels. - What is the dynamic range of the TLV320ADC6120IRTER with DRE enabled?
The dynamic range is 123 dB with DRE enabled. - What are the supported audio formats?
The device supports TDM, I2S, and left-justified (LJ) audio formats. - What is the power consumption at a 48-kHz sample rate with a 1.8 V AVDD supply?
The power consumption is 9.5 mW per channel. - What is the operating temperature range of the TLV320ADC6120IRTER?
The operating temperature range is –40°C to +125°C. - What package type is the TLV320ADC6120IRTER available in?
The device is available in a 20-pin WQFN (RTE) package. - Does the TLV320ADC6120IRTER support programmable gain and volume control?
Yes, it supports programmable channel gain and digital volume control. - What interface is used for controlling the TLV320ADC6120IRTER?
The device is controlled via an I2C interface. - Are there any integrated filters in the TLV320ADC6120IRTER?
Yes, it includes programmable high-pass filter (HPF) and biquad digital filters.
