SBASA30 December   2020 PCM6480-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information
    5. 7.5  Electrical Characteristics
    6. 7.6  Timing Requirements: I2C Interface
    7. 7.7  Switching Characteristics: I2C Interface
    8. 7.8  Timing Requirements: SPI Interface
    9. 7.9  Switching Characteristics: SPI Interface
    10. 7.10 Timing Requirements: TDM, I2S or LJ Interface
    11. 7.11 Switching Characteristics: TDM, I2S or LJ Interface
    12. 7.12 Timing Requirements: PDM Digital Microphone Interface
    13. 7.13 Switching Characteristics: PDM Digial Microphone Interface
    14. 7.14 Timing Diagrams
    15. 7.15 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Serial Interfaces
        1. 8.3.1.1 Control Serial Interfaces
        2. 8.3.1.2 Audio Serial Interfaces
          1. 8.3.1.2.1 Time Division Multiplexed Audio (TDM) Interface
          2. 8.3.1.2.2 Inter IC Sound (I2S) Interface
          3. 8.3.1.2.3 Left-Justified (LJ) Interface
        3. 8.3.1.3 Using Multiple Devices With Shared Buses
      2. 8.3.2  Phase-Locked Loop (PLL) and Clock Generation
      3. 8.3.3  Analog Input Channel Configuration
      4. 8.3.4  Reference Voltage
      5. 8.3.5  Microphone Bias
      6. 8.3.6  Input DC Fault Diagnostics
        1. 8.3.6.1 Fault Conditions
          1. 8.3.6.1.1 Input Pin Short to Ground
          2. 8.3.6.1.2 Input Pin Short to MICBIAS
          3. 8.3.6.1.3 Open Inputs
          4. 8.3.6.1.4 Short Between INxP and INxM
          5. 8.3.6.1.5 Input Pin Overvoltage
          6. 8.3.6.1.6 Input Pin Short to VBAT_IN
        2. 8.3.6.2 Fault Reporting
          1. 8.3.6.2.1 Overcurrent and Overtemperature Protection
      7. 8.3.7  Digital PDM Microphone Record Channel
      8. 8.3.8  Signal-Chain Processing
        1. 8.3.8.1 Programmable Channel Gain and Digital Volume Control
        2. 8.3.8.2 Programmable Channel Gain Calibration
        3. 8.3.8.3 Programmable Channel Phase Calibration
        4. 8.3.8.4 Programmable Digital High-Pass Filter
        5. 8.3.8.5 Programmable Digital Biquad Filters
        6. 8.3.8.6 Programmable Channel Summer and Digital Mixer
        7. 8.3.8.7 Configurable Digital Decimation Filters
          1. 8.3.8.7.1 Linear Phase Filters
            1. 8.3.8.7.1.1 Sampling Rate: 8 kHz or 7.35 kHz
            2. 8.3.8.7.1.2 Sampling Rate: 16 kHz or 14.7 kHz
            3. 8.3.8.7.1.3 Sampling Rate: 24 kHz or 22.05 kHz
            4. 8.3.8.7.1.4 Sampling Rate: 32 kHz or 29.4 kHz
            5. 8.3.8.7.1.5 Sampling Rate: 48 kHz or 44.1 kHz
            6. 8.3.8.7.1.6 Sampling Rate: 96 kHz or 88.2 kHz
            7. 8.3.8.7.1.7 Sampling Rate: 192 kHz or 176.4 kHz
            8. 8.3.8.7.1.8 Sampling Rate: 384 kHz or 352.8 kHz
            9. 8.3.8.7.1.9 Sampling Rate: 768 kHz or 705.6 kHz
          2. 8.3.8.7.2 Low-Latency Filters
            1. 8.3.8.7.2.1 Sampling Rate: 16 kHz or 14.7 kHz
            2. 8.3.8.7.2.2 Sampling Rate: 24 kHz or 22.05 kHz
            3. 8.3.8.7.2.3 Sampling Rate: 32 kHz or 29.4 kHz
            4. 8.3.8.7.2.4 Sampling Rate: 48 kHz or 44.1 kHz
            5. 8.3.8.7.2.5 Sampling Rate: 96 kHz or 88.2 kHz
            6. 8.3.8.7.2.6 Sampling Rate: 192 kHz or 176.4 kHz
          3. 8.3.8.7.3 Ultra-Low-Latency Filters
            1. 8.3.8.7.3.1 Sampling Rate: 16 kHz or 14.7 kHz
            2. 8.3.8.7.3.2 Sampling Rate: 24 kHz or 22.05 kHz
            3. 8.3.8.7.3.3 Sampling Rate: 32 kHz or 29.4 kHz
            4. 8.3.8.7.3.4 Sampling Rate: 48 kHz or 44.1 kHz
            5. 8.3.8.7.3.5 Sampling Rate: 96 kHz or 88.2 kHz
            6. 8.3.8.7.3.6 Sampling Rate: 192 kHz or 176.4 kHz
            7. 8.3.8.7.3.7 Sampling Rate: 384 kHz or 352.8 kHz
      9. 8.3.9  Automatic Gain Controller (AGC)
      10. 8.3.10 Interrupts, Status, and Digital I/O Pin Multiplexing
    4. 8.4 Device Functional Modes
      1. 8.4.1 Hardware Shutdown
      2. 8.4.2 Sleep Mode or Software Shutdown
      3. 8.4.3 Active Mode
      4. 8.4.4 Software Reset
    5. 8.5 Programming
      1. 8.5.1 Control Serial Interfaces
        1. 8.5.1.1 I2C Control Interface
          1. 8.5.1.1.1 General I2C Operation
          2. 8.5.1.1.2 I2C Single-Byte and Multiple-Byte Transfers
            1. 8.5.1.1.2.1 I2C Single-Byte Write
            2. 8.5.1.1.2.2 I2C Multiple-Byte Write
            3. 8.5.1.1.2.3 I2C Single-Byte Read
            4. 8.5.1.1.2.4 I2C Multiple-Byte Read
        2. 8.5.1.2 SPI Control Interface
    6. 8.6 Register Maps
      1. 8.6.1 Device Configuration Registers
        1. 8.6.1.1 Registers Access Type
        2. 8.6.1.2 Page 0 Registers
        3. 8.6.1.3 Page 1 Registers
      2. 8.6.2 Programmable Coefficient Registers
        1. 8.6.2.1 Programmable Coefficient Registers: Page 2
        2. 8.6.2.2 Programmable Coefficient Registers: Page 3
        3. 8.6.2.3 Programmable Coefficient Registers: Page 4
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Four-Channel Analog Microphone and Four-Channel PDM Microphone Simultaneous Recording Using the PCM6480-Q1
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Example Device Register Configuration Script for EVM Setup
        3. 9.2.1.3 Application Curves
    3. 9.3 What To Do and What Not To Do
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Development Support
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Support Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information
9.2.1.2.1 Example Device Register Configuration Script for EVM Setup

This section provides a typical EVM I2C register control script that shows how to set up the PCM6480-Q1 in a 4-channel digital PDM input and a 4-channel analog microphone record mode with differential inputs.

# 
# Key: w 98 XX YY ==> write to I2C address 0x98, to register 0xXX, data 0xYY
#               # ==> comment delimiter
#
# The following list gives an example sequence of items that must be executed in the time
# between powering the device up and reading data from the device. Note that there are 
# other valid sequences depending on which features are used.
#
# Refer to the PCM6xx0-Q1 EVM user guide for key jumper settings and audio connections:
#
# 4-channel differential analog input : INP1/INM1 - Ch1, INP2/INM2 - Ch2, INP3/INM3 - Ch3 and INP4/INM4 - Ch4
# High swing mode enabled
# 4-channel digital PDM input : PDMDIN1_GPI1 - Ch5 and Ch6 and PDMDIN2_GPI2 - Ch7 and Ch8
# FSYNC = 44.1 kHz (Output Data Sample Rate), BCLK = 11.2896 MHz (BCLK/FSYNC = 256)
################################################################
#
#
# Power up IOVDD, AVDD and BSTVDD power supplies keeping SHDNZ pin voltage LOW 
# Wait for IOVDD, AVDD and BSTVDD power supplies to settle to steady state operating voltage range.
# Release SHDNZ to HIGH.
# Wait for 1ms.
#
# Wake-up device by I2C write into P0_R2 using internal AREG
w 90 02 81
# 
# Powerdown MICBIAS and ADC channels on fault detection (overtemperature, and so forth)
w 90 28 10
#
# Configure channel 1 DC-coupled, differential microphone input with high-swing mode
w 90 3C 18
# 
# Configure channel 2 DC-coupled, differential microphone input with high-swing mode
w 90 41 18
# 
# Configure channel 3 DC-coupled, differential microphone input with high-swing mode
w 90 46 18
# 
# Configure channel 4 DC-coupled, differential microphone input with high-swing mode
w 90 4B 18
#
# Configure CH5_INSRC as Digital PDM Input by I2C write into P0_R80
w 98 50 40
#
# Configure CH6_INSRC as Digital PDM Input by I2C write into P0_R85
w 98 55 40
#
# Configure CH7_INSRC as Digital PDM Input by I2C write into P0_R90
w 98 5A 40
#
# Configure CH8_INSRC as Digital PDM Input by I2C write into P0_R95
w 98 5F 40
#
# Configure PDMCLK1_GPIO2 as PDMCLK by I2C write into P0_R34
w 98 22 41
#
# Configure PDMCLK1_GPIO3 as PDMCLK by I2C write into P0_R35
w 98 23 41
#
# Configure PDMDIN1_GPI1 as PDMDIN1 by I2C write into P0_R36
w 98 24 E0
#
# Configure PDMDIN2_GPI2 as PDMDIN2 by I2C write into P0_R37
w 98 25 F0
#
# Enable input channel 1 to channel 4 by I2C write into P0_R115
w 90 73 FF
#
# Enable ASI output channel 1 to channel 4 slots by I2C write into P0_R116
w 90 74 FF
#
# Power-up ADC,MICBIAS and PLL by I2C write into P0_R117
w 90 75 E0
#
# Apply FSYNC = 44.1 kHz and BCLK = 11.2896 MHz and 
# Start recording data by host on ASI bus with TDM protocol 32-bit channel word length
#
# Wait for 10 ms.
# Enable diagnostics for channel 1 to channel 4 by I2C write into P0_R100
w 90 64 F0
#