ZHCSAU9A April   2013  – January 2016 ADS4449

PRODUCTION DATA.  

  1. 特性
  2. 应用
  3. 说明
  4. 修订历史记录
  5. Pin Configuration and Functions
  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  Digital Characteristics
    7. 6.7  Timing Requirements
    8. 6.8  Timing Characteristics For
    9. 6.9  Typical Characteristics
    10. 6.10 Typical Characteristics: Contour
  7. Parameter Measurement Information
    1. 7.1 LVDS Output Timing
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Overrange Indication (OVRxx)
      2. 8.3.2 Gain for SFDR and SNR Trade-Off
    4. 8.4 Device Functional Modes
      1. 8.4.1 Special Performance Modes
      2. 8.4.2 Digital Output Information
        1. 8.4.2.1 DDR LVDS Outputs
          1. 8.4.2.1.1 LVDS Output Data and Clock Buffers
          2. 8.4.2.1.2 Output Data Format
      3. 8.4.3 Using High SNR Mode Register Settings
      4. 8.4.4 Input Common Mode
    5. 8.5 Programming
      1. 8.5.1 Serial Interface
        1. 8.5.1.1 Register Initialization
        2. 8.5.1.2 Serial Register Readout
    6. 8.6 Register Maps
      1. 8.6.1 Register Description
        1. 8.6.1.1  Register Address 00h (Default = 00h)
        2. 8.6.1.2  Register Address 01h (Default = 00h)
        3. 8.6.1.3  Register Address 25h (Default = 00h)
        4. 8.6.1.4  Register Address 2bh (Default = 00h)
        5. 8.6.1.5  Register Address 31h (Default = 00h)
        6. 8.6.1.6  Register Address 37h (Default = 00h)
        7. 8.6.1.7  Register Address 3dh (Default = 00h)
        8. 8.6.1.8  Register Address 3fh (Default = 00h)
        9. 8.6.1.9  Register Address 40h (Default = 00h)
        10. 8.6.1.10 Register Address 42h (Default = 00h)
        11. 8.6.1.11 Register Address 45h (Default = 00h)
        12. 8.6.1.12 Register Address A9h (Default = 00h)
        13. 8.6.1.13 Register Address Ach (Default = 00h)
        14. 8.6.1.14 Register Address C3h (Default = 00h)
        15. 8.6.1.15 Register Address C4h (Default = 00h)
        16. 8.6.1.16 Register Address Cfh (Default = 00h)
        17. 8.6.1.17 Register Address D6h (Default = 00h)
        18. 8.6.1.18 Register Address D7h (Default = 00h)
        19. 8.6.1.19 Register Address F1h (Default = 00h)
        20. 8.6.1.20 Register Address 58h (Default = 00h)
        21. 8.6.1.21 Register Address 59h (Default = 00h)
        22. 8.6.1.22 Register Address 70h (Default = 00h)
        23. 8.6.1.23 Register Address 71h (Default = 00h)
        24. 8.6.1.24 Register Address 88h (Default = 00h)
        25. 8.6.1.25 Register Address 89h (Default = 00h)
        26. 8.6.1.26 Register Address A0h (Default = 00h)
        27. 8.6.1.27 Register Address A1h (Default = 00h)
        28. 8.6.1.28 Register Address Feh (Default = 00h)
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
      4. 9.2.4 Enabling 14-Bit Resolution
      5. 9.2.5 Analog Input
      6. 9.2.6 Drive Circuit Requirements
      7. 9.2.7 Clock Input
  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 器件命名规则
    2. 12.2 文档支持
      1. 12.2.1 相关文档 
    3. 12.3 社区资源
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 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

1 特性

  • 四通道
  • 14 位分辨率
  • 最大采样数据速率:250MSPS
  • 功率耗散:
    • 每通道 365mW
  • 170MHz IF 上的频谱性能(典型值):
    • 信噪比 (SNR):69dBFS
    • 无杂散动态范围 (SFDR):86dBc
  • DDR 低压差分信令 (LVDS) 数字输出接口
  • 内部抖动
  • 封装:144 引脚 NFBGA (10.00mm × 10.00mm)

2 应用

  • 多载波 GSM 蜂窝基础设施基站
  • 雷达和智能天线阵列
  • 多载波多模式蜂窝基础设施基站
  • 针对无线基础设施有源天线阵列
  • 通信测试设备

3 说明

ADS4449 是一款高线性、四通道、14 位、250MSPS 模数转换器 (ADC)。此器件针对低功耗和高无杂散动态范围 (SFDR) 而设计,具有低噪声性能以及在宽输入频率范围内出色的 SFDR。

器件信息(1)

器件型号 封装 封装尺寸(标称值)
ADS4449 NFBGA (144) 10.00mm x 10.00mm
  1. 要了解所有可用封装,请参见数据表末尾的可订购产品附录。

170MHz 输入频率的频谱

ADS4449 sbas603_frontpg.gif