ZHCSK28E April   2003  – July 2019 PCM1753 , PCM1754 , PCM1755

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      功能方框图
  4. 4 修订历史记录
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin 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 System Clock Input Timing
    7. 7.7 Audio Interface Timing
    8. 7.8 Control Interface Timing Requirements
    9. 7.9 Typical Characteristics
      1. 7.9.1 Digital Filter (De-Emphasis Off)
      2. 7.9.2 Analog Dynamic Performance (Supply Voltage Characteristics)
      3. 7.9.3 Analog Dynamic Performance (Temperature Characteristics)
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 System Clock and Reset Functions
        1. 8.3.1.1 System Clock Input
        2. 8.3.1.2 Power-On Reset Functions
      2. 8.3.2 Audio Serial Interface
        1. 8.3.2.1 Audio Data Formats and Timing
      3. 8.3.3 Zero Flag (PCM1754)
      4. 8.3.4 Zero Flag (PCM1753)
      5. 8.3.5 Zero Flag Outputs
      6. 8.3.6 Analog Outputs
        1. 8.3.6.1 VCOM Output
    4. 8.4 Device Functional Modes
      1. 8.4.1 Hardware Control (PCM1754)
      2. 8.4.2 Oversampling Rate Control (PCM1754)
    5. 8.5 Programming
      1. 8.5.1 Software Control (PCM1753/55)
        1. 8.5.1.1 Register Write Operation
    6. 8.6 Register Maps
      1. 8.6.1 Mode Control Registers (PCM1753/55)
        1. 8.6.1.1 User-Programmable Mode Controls
        2. 8.6.1.2 Register Definitions
          1. 8.6.1.2.1  ATx[7:0]: Digital Attenuation Level Setting
          2. 8.6.1.2.2  MUTx: Soft Mute Control
          3. 8.6.1.2.3  OVER: Oversampling Rate Control
          4. 8.6.1.2.4  SRST: Reset
          5. 8.6.1.2.5  DACx: DAC Operation Control
          6. 8.6.1.2.6  DM12: Digital De-Emphasis Function Control
          7. 8.6.1.2.7  DMF[1:0]: Sampling Frequency Selection for the De-Emphasis Function
          8. 8.6.1.2.8  FMT[2:0]: Audio Interface Data Format
          9. 8.6.1.2.9  FLT: Digital Filter Rolloff Control
          10. 8.6.1.2.10 DREV: Output Phase Select
          11. 8.6.1.2.11 ZREV: Zero Flag Polarity Select
          12. 8.6.1.2.12 AZRO: Zero Flag Function Select
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
        1. 9.2.1.1 Design Parameters
        2. 9.2.1.2 Power Supplies and Grounding
        3. 9.2.1.3 D/A Output Filter Circuits
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Total Harmonic Distortion + Noise
        2. 9.2.2.2 Dynamic Range
        3. 9.2.2.3 Idle Channel Signal-to-Noise Ratio (SNR)
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 相关文档　
    2. 12.2 相关链接
    3. 12.3 接收文档更新通知
    4. 12.4 社区资源
    5. 12.5 商标
    6. 12.6 静电放电警告
    7. 12.7 Glossary
  13. 13机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

9.1 Application Information

The delta-sigma section of the PCM175x device is based on an 8-level amplitude quantizer and a 4th-order noise shaper. This section converts the oversampled input data to 8-level delta-sigma format. A block diagram of the 8-level delta-sigma modulator is shown in Figure 32. This 8-level delta-sigma modulator has the advantage of stability and clock jitter sensitivity over the typical one-bit (2-level) delta-sigma modulator.

The combined oversampling rate of the delta-sigma modulator and the interpolation filter is 64 fS.

The theoretical quantization noise performance of the 8-level delta-sigma modulator is shown in Figure 35 and Figure 36. The enhanced multilevel delta-sigma architecture also has advantages for input clock jitter sensitivity due to the multilevel quantizer, with the simulated jitter sensitivity shown in Figure 37.

The PCM175X devices are suitable for a wide variety of cost-sensitive consumer applications requiring good performance and operation with a single 5-V supply.