Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Conversion | Stereo audio ADC |
| Sample Rates | 8 kHz to 96 kHz |
| SNR | 92 dBA stated feature |
| Analog Front End | Up to 40 dB programmable analog gain / AGC |
| Inputs | Six configurable analog inputs; single-ended or differential |
| DSP | Embedded instruction-programmable miniDSP and programmable filters |
| Digital Audio | I²S/LJ/RJ/DSP/TDM plus digital microphone support |
| Exact Package / Packing | VQFN (RGE), 24 pins; 3000-piece large tape and reel |
Product Overview
TLV320ADC3101IRGER combines a stereo audio ADC with programmable analog gain, digital-microphone support and an embedded miniDSP. It is aimed at portable voice/audio acquisition where input routing, AGC and filtering need to be changed in software without adding a separate DSP.
The miniDSP is the key selection differentiator versus simple audio ADCs such as PCM1808: it can implement IIR/FIR/EQ/noise-processing blocks but requires coefficient/program configuration and increases firmware validation scope.
The RGE order code uses a compact 4 mm VQFN with exposed pad and 3000-piece reel packaging. Thermal/ground-pad soldering and mixed-signal layout are therefore part of production readiness.
For related devices, see HKEQGOO’s ADCs/DACs – Special Purpose category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | TLV320ADC3101IRGER |
| Conversion | Stereo audio ADC |
| Sample Rates | 8 kHz to 96 kHz |
| SNR | 92 dBA stated feature |
| Analog Front End | Up to 40 dB programmable analog gain / AGC |
| Inputs | Six configurable analog inputs; single-ended or differential |
| DSP | Embedded instruction-programmable miniDSP and programmable filters |
| Digital Audio | I²S/LJ/RJ/DSP/TDM plus digital microphone support |
| Exact Package / Packing | VQFN (RGE), 24 pins; 3000-piece large tape and reel |
| Manufacturer Status | Active / Production |
| Part Marking | ADC 3101 |
Functional Highlights
Programmable front end can replace external analog/digital processing
Gain, input routing and miniDSP filters can move functions such as voice EQ or noise conditioning into the codec path, reducing component count but tying behavior to register/DSP firmware.
Digital microphone support changes clock/routing needs
A design that uses digital mics avoids analog input noise/gain constraints but must instead manage mic clock/data timing and the internal routing configuration.
Design Considerations
- Freeze miniDSP coefficients/register image as version-controlled firmware; audio performance is not defined by the BOM alone.
- Keep analog inputs/references away from digital audio clocks and provide a low-impedance exposed-pad ground.
- Validate power-up/register sequencing for the chosen analog or digital microphone path.
Product Status and Exact Order Code
Manufacturer status: Active / Production
Texas Instruments lists TLV320ADC3101IRGER as Active / Production; VQFN (RGE), 24 pins; 3000-piece large tape and reel; Level-2-260C-1 YEAR; −40°C to +85°C; marking ADC 3101.
Related Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
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