ZHCSLL7C october   2021  – august 2023 TRF1208

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
  7. 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: TRF1208
    6. 6.6 Electrical Characteristics: TRF1208B
    7. 6.7 Typical Characteristics: TRF1208
    8. 6.8 Typical Characteristics: TRF1208B
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Fully-Differential Amplifier
      2. 7.3.2 Single Supply Operation
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power-Down Mode
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Driving a High-Speed ADC
      2. 8.1.2 Calculating Output Voltage Swing
      3. 8.1.3 Thermal Considerations
    2. 8.2 Typical Applications
      1. 8.2.1 TRF1208 in Receive Chain
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
      2. 8.2.2 TRF1208 in a Transmit Chain
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 第三方产品免责声明
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 接收文档更新通知
    4. 9.4 支持资源
    5. 9.5 Trademarks
    6. 9.6 静电放电警告
    7. 9.7 术语表
  11. 10Mechanical, Packaging, and Orderable Information

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

8.1.2 Calculating Output Voltage Swing

This section gives a quick reference of the output voltage swings for different input power levels. In this example, the output is terminated with a 100‑Ω differential load and a power gain of 16 dB is assumed.

GUID-20210904-SS0I-V9H5-5417-DX6DS4151MBZ-low.svg Figure 8-4 Power and Voltage Levels
Equation 1. Voltage gain = 20 × log(VO / VI)
Equation 2. Power gain = 10 × log(PO / PI) = 10 × log((VO2 / 100) / (VI2 / 50)) = 20 × log(VO / VI) – 3 dB
Table 8-1 Output Voltage Swings for Different Input Power Levels
INPUT OUTPUT

(TRF1208)

 OUTPUT

(TRF1208B)
PI (dBm) VI (VPP) PO (dBm) VO (VPP) PO (dBm) VO (VPP)
–20 0.063 –4 0.564 –10 0.283
–15 0.112 1 1.004 –5 0.503
–10 0.2 6 1.785 0 0.894
–9 0.224 7 2.002 1 1.004