SLES142B JUNE   2005  – July 2016 PCM1803A

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
      1. 6.6.1 Typical Curves of Internal Filter
        1. 6.6.1.1 Decimation Filter Frequency Response
        2. 6.6.1.2 Low-Cut Filter Frequency Response
      2. 6.6.2 Typical Performance Curves
      3. 6.6.3 Output Spectrum
      4. 6.6.4 Supply Current
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Hardware Control
      2. 7.3.2 Power-On-Reset Sequence
      3. 7.3.3 System Clock
    4. 7.4 Device Functional Modes
      1. 7.4.1 Serial Audio Data Interface
        1. 7.4.1.1 Interface Mode
          1. 7.4.1.1.1 Master Mode
          2. 7.4.1.1.2 Slave Mode
        2. 7.4.1.2 Data Format
        3. 7.4.1.3 Interface Timing
      2. 7.4.2 Synchronization With Digital Audio System
      3. 7.4.3 Power Down
      4. 7.4.4 HPF Bypass
      5. 7.4.5 Oversampling Ratio Control
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Control Pins
        2. 8.2.2.2 DSP or Audio Processor
        3. 8.2.2.3 Input Filters
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 VCC, VDD Pins
      2. 10.1.2 AGND, DGND Pins
      3. 10.1.3 VINL, VINR Pins
      4. 10.1.4 VREF1 Pin
      5. 10.1.5 VREF2 Pin
      6. 10.1.6 DOUT Pin
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • 24-Bit Delta-Sigma Stereo A/D Converter
  • Single-Ended Voltage Input: 3 Vp-p
  • Oversampling Decimation Filter:
    • Oversampling Frequency: ×64, ×128
    • Pass-Band Ripple: ±0.05 dB
    • Stop-Band Attenuation: –65 dB
    • On-Chip High-Pass Filter: 0.84 Hz (44.1 kHz)
  • High-Performance:
    • THD+N: –95 dB (Typically)
    • SNR: 103 dB (Typically)
    • Dynamic Range: 103 dB (Typically)
  • PCM Audio Interface:
    • Master or Slave Mode Selectable
    • Data Formats:
      • 24-Bit Left-Justified
      • 24-Bit I2S
      • 20-, 24-Bit Right-Justified
  • Sampling Rate: 16 kHz to 96 kHz
  • System Clock: 256 fS, 384 fS, 512 fS, 768 fS
  • Dual Power Supplies: 5 V for Analog, 3.3 V for Digital
  • Package: 20-Pin SSOP

2 Applications

  • AV Amplifier Receivers
  • MD Players
  • CD Recorders
  • Multitrack Receivers
  • Electric Musical Instruments

3 Description

The PCM1803A device is high-performance, low-cost, single-chip stereo analog-to-digital converter with single-ended analog voltage input. The PCM1803A uses a delta-sigma modulator with 64- and 128-times oversampling, and includes a digital decimation filter and high-pass filter, which removes the DC component of the input signal. For various applications, the PCM1803A supports master and slave modes and four data formats in serial interface. The PCM1803A is suitable for a wide variety of cost-sensitive consumer applications where good performance and operation from a 5-V analog supply and 3.3-V digital supply are required. The PCM1803A is fabricated using a highly-advanced CMOS process and is available in a small 20-pin SSOP package.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
PCM1803A SSOP (20) 7.20 mm × 5.30 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Functional Block Diagram

PCM1803A b0004-06.gif