• Stereo Audio ADC
  • 92-dBA Signal-to-Noise Ratio
  • Supports ADC Sample Rates From 8 kHz to 96 kHz
• Instruction-Programmable Embedded miniDSP
• Flexible Digital Filtering With RAM Programmable Coefficient, Instructions, and Built-In Processing Blocks
  • Low-Latency IIR Filters for Voice
  • Linear Phase FIR Filters for Audio
  • Additional Programmable IIR Filters for EQ, Noise Cancellation or Reduction
  • Up to 128 Programmable ADC Digital Filter Coefficients
• Six Audio Inputs With Configurable Automatic Gain Control (AGC)
  • Programmable in Single-Ended or Fully Differential Configurations
  • Can Be 3-Stated for Easy Interoperability With Other Audio ICs
• Low Power Consumption and Extensive Modular Power Control:
  • 6-mW Mono Record, 8-kHz
  • 11-mW Stereo Record, 8-kHz
  • 10-mW Mono Record, 48-kHz
  • 17-mW Stereo Record, 48-kHz
• Dual Programmable Microphone Bias
• Programmable PLL for Clock Generation
• I2C Control Bus
• Audio Serial Data Bus Supports I2S, Left/Right-Justified, DSP, PCM, and TDM Modes
• Digital Microphone Input Support
• Two GPIOs
• Power Supplies:
  • Analog: 2.6 V to 3.6 V
  • Digital: Core: 1.65 V to 1.95 V, I/O: 1.1 V–3.6 V
• 4-mm × 4-mm 24-Pin RGE (VQFN)

• Wireless Handsets
• Portable Low-Power Audio Systems
• Noise-Cancellation Systems
• Front-End Voice or Audio Processor for Digital Audio

The TLV320ADC3101 device is a low-power, stereo audio analog-to-digital converter (ADC) supporting sampling rates from 8 kHz to 96 kHz with an integrated programmable-gain amplifier providing up to 40-dB analog gain or AGC. A programmable miniDSP is provided for custom audio processing. Front-end input coarse attenuation of 0 dB, –6 dB, or off, is also provided. The inputs are programmable in a combination of single-ended or fully differential configurations. Extensive register-based power control is available via an I2C interface, enabling mono or stereo recording. Low power consumption makes the TLV320ADC3101 ideal for battery-powered portable equipment.