Manuali utente per Texas Instruments LM49370RLEVAL Evaluation Board LM49370RLEVAL/NOPB

Sommario

• Features

  1
• Applications

  1
• Description

  2
  • LM49370 Overview

    2
  • Typical Application

    3
  • Connection Diagrams

    3
    • PIN TYPE DEFINITIONS

      5
• Absolute Maximum Ratings

  6
• Operating Ratings

  6
• Electrical Characteristics

  6
• System Control

  12
  • I2C SIGNALS

    12
  • I2C DATA VALIDITY

    12
  • I2C START AND STOP CONDITIONS

    12
  • TRANSFERRING DATA

    12
  • I2C TIMING PARAMETERS

    13
  • Status & Control Registers

    15
    • BASIC CONFIGURATION REGISTER

      16
    • CLOCKS CONFIGURATION REGISTER

      16
    • LM49370 CLOCK NETWORK

      17
    • COMMON CLOCK SETTINGS FOR THE DAC & ADC

      18
    • PLL M DIVIDER CONFIGURATION REGISTER

      19
    • PLL N DIVIDER CONFIGURATION REGISTER

      19
    • PLL P DIVIDER CONFIGURATION REGISTER

      19
    • PLL N MODULUS CONFIGURATION REGISTER

      20
    • FURTHER NOTES ON PLL PROGRAMMING

      21
    • ADC_1 CONFIGURATION REGISTER

      23
    • ADC_2 CONFIGURATION REGISTER

      23
    • AGC_1 CONFIGURATION REGISTER

      24
    • AGC_2 CONFIGURATION REGISTER

      25
    • AGC_3 CONFIGURATION REGISTER

      26
    • AGC OVERVIEW

      27
    • MIC_1 CONFIGURATION REGISTER

      28
    • MIC_2 CONFIGURATION REGISTER

      28
    • SIDETONE ATTENUATION REGISTER

      30
    • CP_INPUT CONFIGURATION REGISTER

      30
    • AUX_LEFT CONFIGURATION REGISTER

      31
    • AUX_RIGHT CONFIGURATION REGISTER

      31
    • DAC CONFIGURATION REGISTER

      32
    • CP_OUTPUT CONFIGURATION REGISTER

      32
    • AUX_OUTPUT CONFIGURATION REGISTER

      32
    • LS_OUTPUT CONFIGURATION REGISTER

      33
    • HP_OUTPUT CONFIGURATION REGISTER

      33
    • EP_OUTPUT CONFIGURATION REGISTER

      33
    • DETECT CONFIGURATION REGISTER

      34
    • HEADSET DETECT OVERVIEW

      34
    • STATUS REGISTER

      36
    • 3D CONFIGURATION REGISTER

      37
    • I2S PORT MODE CONFIGURATION REGISTER

      38
    • I2S PORT CLOCK CONFIGURATION REGISTER

      38
    • DIGITAL AUDIO DATA FORMATS

      39
    • PCM PORT MODE CONFIGURATION REGISTER

      40
    • PCM PORT CLOCK CONFIGURATION REGISTER

      41
    • SRC CONFIGURATION REGISTER

      42
    • GPIO CONFIGURATION REGISTER

      43
    • DAC PATH COMPENSATION FIR CONFIGURATION REGISTERS

      44
• Typical Performance Characteristics

  46
• Application Note

  79
  • MICROPHONE BIAS CONFIGURATIONS

    79
    • Schematic Considerations for MEMs Microphones

      79
    • Schematic Considerations for ECM Microphones

      79
  • PCB LAYOUT CONSIDERATIONS

    79
    • A_VDD and LS_VDD

      79
    • Microphone Inputs

      79
    • Class D Loudspeaker

      80
    • Capacitors

      80
  • LM49370 Demonstration Board Schematic Diagram

    80
  • Demoboard PCB Layout

    81
• Revision History

  84