Stereo-channel, 768-kHz, Burr-Brown™ audio analog-to-digital converter (ADC) with 106-dB SNR
TLV320ADC3120
Product details
Parameters
Package | Pins | Size
Features
- Multichannel high-performance ADC:
- 2-channel analog microphones or line-in,
- 4-channel digital PDM microphones, or
- Combination of analog and digital microphones
- ADC line and microphone differential input performance:
- Dynamic range (DR): 106 dB
- THD+N: –98 dB
- ADC channel summing mode, DR performance:
- 109-dB, 2-channel summing
- ADC input voltage:
- Differential, 2-VRMS full-scale inputs
- Single-ended, 1-VRMS full-scale inputs
- ADC sample rate (fS) = 8 kHz to 768 kHz
- Programmable channel settings:
- Channel gain: 0 dB to 42 dB, 1-dB steps
- Digital volume control: –100 dB to 27 dB
- Gain calibration with 0.1-dB resolution
- Phase calibration with 163-ns resolution
- Programmable microphone bias or supply voltage generation
- Low-latency signal processing filter selection
- Programmable HPF and biquad digital filters
- Automatic gain controller (AGC)
- I2C control interface
- Integrated high-performance audio PLL
- Automatic clock divider setting configurations
- Audio serial data interface:
- Format: TDM, I2S, or left-justified (LJ)
- Word length: 16 bits, 20 bits, 24 bits, or 32 bits
- Master or slave interface
- Single-supply operation: 3.3 V or 1.8 V
- I/O-supply operation: 3.3 V or 1.8 V
- Power consumption for 1.8-V AVDD supply:
- TBD mW/channel at 16-kHz sample rate
- TBD mW/channel at 48-kHz sample rate
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Description
The TLV320ADC3120 is a Burr-Brown™ high-performance, audio analog-to-digital converter (ADC) that supports simultaneous sampling of up to two analog channels or four digital channels for the pulse density modulation (PDM) microphone input. The device supports line and microphone inputs, and allows for both single-ended and differential input configurations. The device integrates programable channel gain, digital volume control, a programmable microphone bias voltage, a phase-locked loop (PLL), a programmable high-pass filter (HPF), biquad filters, low-latency filter modes, and allows for sample rates up to 768 kHz, and allows for sample rates up to 192 kHz. The device supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, and can be controlled with the I2C interface. These integrated high-performance features, along with the ability to be powered from a single-supply of 3.3 V or 1.8 V, make the device an excellent choice for space-constrained audio systems in far-field microphone recording applications.
The TLV320ADC3120 is specified from –40°C to +125°C, and is offered in a 20-pin WQFN package.
Similar but not functionally equivalent to the compared device:
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TLV320ADC3120 2-Channel, 768-kHz, Burr-BrownTM Audio ADC datasheet | Dec. 18, 2020 |
User guide | ADCx120EVM-PDK User's Guide | Oct. 29, 2020 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The ADC3120EVM-PDK is an evaluation module (EVM) that allows the user to test the capabilities of the TLV320ADC3120, which is a two-channel, high-performance, audio analog-to-digital converter (ADC). TLV320ADC3120 is intended for voice-activated systems, professional microphones, audio conferencing (...)
Features
- Complete performance demonstration kit (PDK) for TLV320ADC3120
- High-performance audio ADC: 106-dB dynamic range
- Onboard microphone provided for voice-recording testing
- Direct access to digital audio signals and control interface for simple end-system integration
- USB connection to PC provides power (...)
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
WQFN (RTE) | 20 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Support & training
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