SLOSED5 December   2024 TRF1213

PRODUCTION DATA  

  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 TRF1213 in Receive Chain
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
        3. 7.2.1.3 Application Curve
    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

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • RPV|12
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.1.1 Driving a High-Speed ADC

A common application for the TRF1213 is driving a high-speed ADC that has a differential input (such as the ADC12DJ5200 or AFE7950). Conventionally, passive baluns are used to drive giga-samples-per-second (GSPS) ADCs as a result of the low availability of high-bandwidth, linear amplifiers. The TRF1213 is a single-ended to differential (S2D) RF amplifier that has excellent bandwidth flatness, gain, and phase imbalance comparable to or exceeding costly, passive RF baluns.

Figure 7-1 shows a typical interface circuit for ADC12DJ5200. Depending on the ADC and system requirement, this circuit can be simplified or more complex.

TRF1213 Interfacing With the ADC12DJ5200RF Figure 7-1 Interfacing With the ADC12DJ5200RF

Figure 7-1 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 TRF1213 is designed to drive these ADCs to full-scale, while at the same time not overdrive the ADC. This functionality avoids the need for any voltage limiting device at the ADC.

Figure 7-2 shows a typical interface circuit for the AFE7950, where the TRF1213 is the S2D amplifier.

TRF1213 Interfacing With the AFE7950 RX
A. AFE matching network: component type (L or C) and values depend on the channel (A, B, C, D, FB1, FB2) and frequency band.
Figure 7-2 Interfacing With the AFE7950 RX