Document Outline

• Features
• 1. Description
• 2. Block Diagram
• 3. Package and Pinout
• 4. Pin Description
• 5. Application Block Diagram
• 6. Absolute Maximum Ratings
• 7. Recommended Operating Conditions
• 8. Power Dissipation Ratings
• 9. PMU Electrical Characteristics
  • 9.1 Current Consumption Versus Modes
  • 9.2 Supply Monitor Thresholds
  • 9.3 Digital I/Os DC Characteristics
  • 9.4 DCDC0 and DCDC1
  • 9.5 LDO2
  • 9.6 LDO3
  • 9.7 LDO4
  • 9.8 LDO5
  • 9.9 Measurement Bridge and 10-bit ADC
  • 9.10 RTC Crystal Oscillator
  • 9.11 Die Temperature Sensor
• 10. Audio Codec Electrical Characteristics
• 11. PMU Functional Description
  • 11.1 Power Manager State Diagram
  • 11.2 PMU Startup and Shutdown State Diagram
  • 11.3 Power Manager Conditional Transitions
    • 11.3.1 POWER-ON EVENTS
    • 11.3.2 POWER-OFF EVENTS
    • 11.3.3 POWER-FAIL EVENTS
    • 11.3.4 STANDBY EVENT
    • 11.3.5 STANDBY-OUT EVENT
    • 11.3.6 WAKEUP EVENTS
    • 11.3.7 HRST EVENT
    • 11.3.8 HRST RUN EVENTS
    • 11.3.9 HRST POWERDOWN EVENTS
  • 11.4 Power Manager State Description
    • 11.4.1 POWERDOWN STATE
    • 11.4.2 RUN STATE
    • 11.4.3 STANDBY STATE
    • 11.4.4 HRST STATE
  • 11.5 DCDC0 and DCDC1 Functional Description
    • 11.5.1 PFM and PWM Control Modes
    • 11.5.2 Soft-start Circuit
    • 11.5.3 Output Voltage Programming
    • 11.5.4 180° Out-of-phase Operation
  • 11.6 LDO2 Functional Description
    • 11.6.1 Soft-start Circuit
    • 11.6.2 Output Voltage Programming
  • 11.7 LDO3 and LDO4 Functional Description
    • 11.7.1 Soft-start Circuit
    • 11.7.2 Output Voltage Programming
  • 11.8 Power Fail Detectors
  • 11.9 Measurement Bridge and 10-bit ADC
  • 11.10 Real Time Clock (RTC) User Interface
    • 11.10.1 RTC Register Read/Write Operation
    • 11.10.2 RTC Control Register
    • 11.10.3 RTC Mode Register
    • 11.10.4 RTC Time Register
    • 11.10.5 RTC Calendar Register
    • 11.10.6 RTC Time Alarm Register
    • 11.10.7 RTC Calendar Alarm Register
    • 11.10.8 RTC Status Register
    • 11.10.9 RTC Status Clear Command Register
    • 11.10.10 RTC Interrupt Enable Register
    • 11.10.11 RTC Interrupt Disable Register
    • 11.10.12 RTC Interrupt Mask Register
    • 11.10.13 RTC Valid Entry Register
    • 11.10.14 RTC Version register
  • 11.11 Die Temperature Sensor
• 12. Audio Codec Functional Description
  • 12.1 Description
  • 12.2 Audio Codec Block Diagram
  • 12.3 Audio Codec Controls
  • 12.4 Audio Controller
    • 12.4.1 Audio Codec General Recommendations
      • 12.4.1.1 VMID
      • 12.4.1.2 AC / DC Coupled Load Management
      • 12.4.1.3 MUTE Register
      • 12.4.1.4 Master Clock Input (MCLK)
      • 12.4.1.5 Power-off Conditions
      • 12.4.1.6 Power-off Time
    • 12.4.2 Automatic Path Configuration
      • 12.4.2.1 STANDBY Release
      • 12.4.2.2 Pause Management With STANDBY Bit
      • 12.4.2.3 On-the-fly Path Change
      • 12.4.2.4 Audio Codec Shutdown
    • 12.4.3 Custom Path Configuration
  • 12.5 Audio Codec Power Consumption Versus Programmed Audio Path
  • 12.6 Digital Audio Interface
    • 12.6.1 General Description
    • 12.6.2 Data Transfer: I²S MODE
    • 12.6.3 Data Transfer: Left Justified Mode
    • 12.6.4 Data Transfer: Right Justified Mode
    • 12.6.5 Timing Specifications
  • 12.7 Digital Filters Transfer Function
    • 12.7.1 DAC Frequency Response
    • 12.7.2 ADC Frequency Response
    • 12.7.3 De-Emphasis Filter Frequency Response
      • 12.7.3.1 De-Emphasis Filter: Frequency Response & Error (FS = 32kHz)
      • 12.7.3.2 De-Emphasis Filter: Frequency Response & Error (FS = 44.1kHz)
      • 12.7.3.3 De-Emphasis Filter: Frequency Response & Error (FS = 48kHz)
    • 12.7.4 Equalizer Frequency Response
  • 12.8 Analog Audio Interfaces
    • 12.8.1 Microphone Inputs
    • 12.8.2 Aux / Line Inputs
    • 12.8.3 Line / Headphone Outputs
• 13. Two Wire Interface and Control Registers
  • 13.1 Two-wire Interface (TWI) Protocol
  • 13.2 PMU Register Tables
    • 13.2.1 Register Mapping
    • 13.2.2 PMU Control
• 14. PMU and Audio Soft Control: Quick Start
  • 14.1 RTC Examples
    • 14.1.1 RTC Oscillator POWER-ON
    • 14.1.2 RTC Oscillator POWER-OFF
    • 14.1.3 RTC Domain RESET
    • 14.1.4 RTC Write Operation
    • 14.1.5 RTC Read Operation
    • 14.1.6 RTC Date and Time Update
  • 14.2 Audio Examples
    • 14.2.1 Basic Audio Codec Setting Using Automatic Path Control
    • 14.2.2 Basic Audio Codec Setting Using Custom Path Control
• 15. Typical Performance Characteristics
  • 15.1 PMU: Power Supply Sequences
  • 15.2 DCDC0 and DCDC1
  • 15.3 LDO2
  • 15.4 LDO3
  • 15.5 AUDIO
• 16. Package Information
• 17. Ordering Information
• 18. Revision History