92dB SNR Low-Power Stereo ADC with Digital Mic Support and miniDSP  - TLV320ADC3101

TLV320ADC3101 (ACTIVE)

92dB SNR Low-Power Stereo ADC with Digital Mic Support and miniDSP

 

Description

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.

The AGC programs to a wide range of attack (7 ms to 1.4 s) and decay (50 ms to 22.4 s) times. A programmable noise-gate function is included to avoid noise pumping. Low-latency IIR filters optimized for voice and telephony are available, as well as linear-phase FIR filters optimized for audio. Programmable IIR filters are also available and may be used for sound equalization, or to remove noise components. The audio serial bus can be programmed to support I2S, left-justified, right-justified, DSP, PCM, and TDM modes. The audio bus may be operated in either master or slave mode.

A programmable integrated PLL is included for flexible clock generation and provides support for all standard audio rates from a wide range of available MCLKs, varying from 512 kHz to 50 MHz, including the most popular cases of 12-MHz, 13-MHz, 16-MHz, 19.2-MHz, and 19.68-MHz system clocks.

Features

  • 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)

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Parametrics Compare all products in Audio ADC

 
# ADCs
# Inputs / # Outputs
Resolution (Bits)
Control Interface
Digital Audio Interface
ADC SNR (Typ) (dB)
Additional Features
Rating
Operating Temperature Range (C)
Pin/Package
TLV320ADC3101 TLV320ADC3001
2    2   
6 / Digital I/F    3 / Digital I/F   
24    24   
I2C    I2C   
DSP
I2S
L
PCM
R
TDM   
L
R
I2S
DSP
TDM
PCM   
92    92   
Analog Mic support
Digital Mic Support
Low-latency IIR linear-phase FIR filters   
Low-latency IIR linear-phase FIR filters
Analog Mic support   
Catalog    Catalog   
-40 to 85    -40 to 85   
24VQFN    16DSBGA   

Other qualified versions of TLV320ADC3101

Version Part Number Definition
Automotive TLV320ADC3101-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects