SBASB12 May   2024 PCM1809

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Timing Requirements: TDM, I2S or LJ Interface
    7. 5.7 Switching Characteristics: TDM, I2S or LJ Interface
    8. 5.8 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Hardware Control
      2. 6.3.2 Audio Serial Interfaces
        1. 6.3.2.1 Time Division Multiplexed Audio (TDM) Interface
        2. 6.3.2.2 Inter IC Sound (I2S) Interface
      3. 6.3.3 Phase-Locked Loop (PLL) and Clock Generation
      4. 6.3.4 Input Channel Configurations
      5. 6.3.5 Reference Voltage
      6. 6.3.6 Signal-Chain Processing
        1. 6.3.6.1 Digital High-Pass Filter
        2. 6.3.6.2 Configurable Digital Decimation Filters
          1. 6.3.6.2.1 Linear Phase Filters
            1. 6.3.6.2.1.1 Sampling Rate: 8 kHz or 7.35 kHz
            2. 6.3.6.2.1.2 Sampling Rate: 16 kHz or 14.7 kHz
            3. 6.3.6.2.1.3 Sampling Rate: 24 kHz or 22.05 kHz
            4. 6.3.6.2.1.4 Sampling Rate: 32 kHz or 29.4 kHz
            5. 6.3.6.2.1.5 Sampling Rate: 48 kHz or 44.1 kHz
            6. 6.3.6.2.1.6 Sampling Rate: 96 kHz or 88.2 kHz
            7. 6.3.6.2.1.7 Sampling Rate: 192 kHz or 176.4 kHz
          2. 6.3.6.2.2 Low-Latency Filters
            1. 6.3.6.2.2.1 Sampling Rate: 16 kHz or 14.7 kHz
            2. 6.3.6.2.2.2 Sampling Rate: 24 kHz or 22.05 kHz
            3. 6.3.6.2.2.3 Sampling Rate: 32 kHz or 29.4 kHz
            4. 6.3.6.2.2.4 Sampling Rate: 48 kHz or 44.1 kHz
            5. 6.3.6.2.2.5 Sampling Rate: 96 kHz or 88.2 kHz
    4. 6.4 Device Functional Modes
      1. 6.4.1 Active Mode
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
  9. 8 Power Supply Recommendations
  10. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Receiving Notification of Documentation Updates
    2. 10.2 Support Resources
    3. 10.3 Trademarks
    4. 10.4 Electrostatic Discharge Caution
    5. 10.5 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

3 Description

The PCM1809 is a low power audio analog-to-digital converter (ADC) that supports simultaneous sampling of up to two analog channels. The device supports single-ended and differential line and microphone inputs with a 2VRMS full-scale differential signal. The device integrates a phase-locked loop (PLL), a DC removal high-pass filter (HPF), and supports sample rates up to 192kHz. The device supports time-division multiplexing (TDM) or I2S audio formats, selectable with the hardware pin level. Additionally, the PCM1809 supports Controller and target mode selection for the audio bus interface operation. These integrated features, along with the ability to be powered from a single supply of 3.3V, make the device an excellent choice for cost-sensitive, space-constrained audio systems in microphone recording applications.

The PCM1809 is specified from –40°C to +105°C, and is offered in a 20-pin WQFN package.

Device Information
PART NUMBER PACKAGE(1) PACKAGE SIZE(2)
PCM1809 WQFN (20) 3.00mm × 3.00mm with 0.5mm pitch
(1) For all available packages, see the package option addendum at the end of the data sheet.
(2) The package size (length × width) is a nominal value and includes pins, where applicable.
PCM1809 Simplified Block Diagram Simplified Block Diagram