SBOSAA9A March   2023  – June 2024 TRF0208-SEP

ADVANCE INFORMATION  

  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 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 Fully-Differential Amplifier
      2. 6.3.2 Single Supply Operation
    4. 6.4 Device Functional Modes
      1. 6.4.1 Power Down Mode
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Driving a High-Speed ADC
      2. 7.1.2 Calculating Output Voltage Swing
      3. 7.1.3 Thermal Considerations
    2. 7.2 Typical Applications
      1. 7.2.1 TRF0208-SEP in Receive Chain
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Third-Party Products Disclaimer
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information
    1. 10.1 Package Option Addendum
    2. 10.2 Mechanical Data

7.1.2 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 100Ω differential load and a power gain of 16dB is assumed.

TRF0208-SEP Power and Voltage Levels Figure 7-3 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) – 3dB
Table 7-1 Output Voltage Swings for Different Input Power Levels
INPUT OUTPUT

(TRF0208-SEP)
PI (dBm50) VI (VPP) PO (dBm100) VO (VPP)
–20 0.063 –4 0.564
–15 0.112 1 1.004
–10 0.2 6 1.785
–9 0.224 7 2.002