SBOSA52B november   2022  – august 2023 TRF0206-SP

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  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
    6. 6.6 Quality Conformance Inspection
    7. 6.7 Typical Characteristics
  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 Application
      1. 8.2.1 TRF0206-SP Driving an AFE7950-SP Receiver
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 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 Third-Party Products Disclaimer
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

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

8.1.1 Driving a High-Speed ADC

A common application of the TRF0206-SP is to drive a high-speed ADC, such as the ADC12DJ3200QML-SP or AFE7950 that have differential inputs. Conventionally, passive baluns are used to drive GSPS ADCs because of nonavailability of high-bandwidth linear amplifiers. The TRF0206-SP is an active balun that has excellent bandwidth flatness, gain, and phase imbalance comparable to or exceeding costly passive baluns.

The following figure shows a typical interface circuit for the ADC12DJ3200QML-SP. Depending on the ADC and system requirement, this circuit can be simplified or can be more complex.

GUID-20220302-SS0I-TGFQ-2QJD-JWVXK8VVNFMQ-low.svg Figure 8-1 Interfacing with High-Speed ADC

Figure 8-1 shows two sections of the circuit between the driver amp and the ADC: namely, the matching pad (or attenuator pad) and the antialiasing filter. Use small form-factor, RF-quality, passive components for these circuits. The output swing of the TRF0206-SP is designed to drive these ADCs full-scale, while at the same time not overdrive the device. This functionality avoids the need for any voltage limiting device at the ADC.