SBAA400A September   2019  – December 2023 PCM5140-Q1 , PCM6140-Q1 , TLV320ADC5140 , TLV320ADC6140

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Dynamic Range Enhancer
    1. 2.1 High Pass Filter
    2. 2.2 DRE Parameters
    3. 2.3 Sample Rate Support
  6. 3Example
  7. 4References
  8. 5Revision History

Abstract

TLV320ADC5140 and TLV320ADC6140 devices are quad-channel, high-performance, audio analog-to-digital converters that have an extensive set of features that includes the following:

  • Programmable Gain Amplifier (PGA)
  • Digital volume control
  • A programmable microphone bias voltage
  • A phase-locked loop (PLL)
  • A programmable high pass filter (HPF)
  • Automatic Gain Control (DRE)
  • Dynamic Range Enhancer (DRE)
  • Linear phase or low-latency filter modes for sample rates up-to 768 kHz

This application note describes how to configure the dynamic range enhancer (DRE) feature in TLV320ADC5140, TLV320ADC6140, PCM5140-Q1 and PCM6140-Q1 devices.