Overview
The TLV320ADC3100, produced by Texas Instruments, is a low-power, highly integrated stereo audio analog-to-digital converter (ADC) designed for space-constrained, battery-powered, portable applications. This device is part of the TLV320ADC3100 series and is known for its high performance, low power consumption, and flexible digital filtering capabilities.
Key Specifications
| Parameter | Value |
|---|---|
| ADC Channels | 2 (Stereo) |
| ADC SNR (Typ), dB | 92 |
| ADC Sample Rates | 8 kHz to 96 kHz |
| Analog Inputs | Up to four single-ended or two differential audio inputs |
| Digital Audio Interface | I2S, Left/Right-Justified, TDM |
| Package Size | 32-VQFN: 25 mm² (5 x 5 mm) |
| Power Consumption (Typ) | 0.8 mA (DVDD), 1.1 mA (AVDD with PLL powered) |
| RoHS Compliance | Yes |
Key Features
- Stereo audio multibit delta-sigma ADC with sample rates from 8 kHz to 96 kHz.
- Programmable digital filter engines including biquads.
- Register-configurable combinations of up to four single-ended or two differential audio inputs.
- Fully programmable phase-locked loop (PLL) for extensive ADC clock-source and divider options.
- Support for I2C interface in standard and fast communication modes.
- High-impedance state capability for DOUT at the end of data transfer.
- Integrated feature for inverting the bit clock polarity.
Applications
The TLV320ADC3100 is designed for use in various portable and battery-powered applications, including:
- Smartphones and mobile devices.
- Tablets and handheld gaming consoles.
- Wearable devices such as smartwatches and fitness trackers.
- Audio recording and playback systems in automotive and industrial environments.
Q & A
- What is the typical signal-to-noise ratio (SNR) of the TLV320ADC3100?
The typical SNR of the TLV320ADC3100 is 92 dB. - What are the supported sample rates for the ADC?
The ADC supports sample rates from 8 kHz to 96 kHz. - How many analog inputs does the TLV320ADC3100 support?
The device supports up to four single-ended or two differential audio inputs. - What digital audio interfaces are supported by the TLV320ADC3100?
The device supports I2S, Left/Right-Justified, and TDM interfaces. - Is the TLV320ADC3100 RoHS compliant?
Yes, the TLV320ADC3100 is RoHS compliant. - What is the typical power consumption of the TLV320ADC3100?
The typical power consumption is 0.8 mA (DVDD) and 1.1 mA (AVDD with PLL powered). - What package type is the TLV320ADC3100 available in?
The device is available in a 32-VQFN package. - Can the bit clock polarity be configured on the TLV320ADC3100?
Yes, the bit clock polarity can be configured independently of the audio interface mode. - Does the TLV320ADC3100 support high-impedance state for DOUT?
Yes, the device can be put in a high-impedance state at the end of data transfer. - What communication modes are supported by the I2C interface of the TLV320ADC3100?
The I2C interface supports both standard and fast communication modes.
