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

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机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.2.2.2 Detailed Design Procedure

The TRF1208 is configured as a D2S amplifier. The OUTM pin of the TRF1208 is terminated with 50 Ω and OUTP is taken out as the SE output. The section close to TRF1208 input is an attenuator pad that is meant for robust matching. The section close to AFE7950 is the matching network for the AFE, which is channel dependent. Choose matching components based on the AFE return-loss data and some trial and error because the board parameters can influence the exact values.

Table 8-3 shows the BOM values of the design for a channel that is matched to center frequency of 8.2 GHz.

Table 8-3 Component Values of TX Chain With Center Frequency = 8.2 GHz
SECTIONDESIGNATORTYPEVALUEPART NUMBERINSTALL / DNI
Supply inductorL25Inductor2 nHLQP03TG2N0B02#Install
Supply inductorL26Inductor2 nHLQP03TG2N0B02#Install
MatchingC125———DNI
MatchingC142———DNI
MatchingC156———DNI
MatchingL34Capacitor0.7 pF02015J0R7PBSTRInstall
MatchingL33Capacitor0.7 pF02015J0R7PBSTRInstall
MatchingC134Inductor0.5 nHLQP03TG0N5B02#Install
MatchingC140Inductor0.1 nHLQP03TG0N1B02#Install
MatchingC139Inductor0.1 nHLQP03TG0N1B02#Install
DC block capC149Capacitor100 nF530L104KTInstall
DC block capC150Capacitor100 nF530L104KTInstall
DC block capC151Capacitor100 nF530L104KTInstall
DC block capC153Capacitor100 nF530L104KTInstall
AttenuatorR88Resistor20 ΩERJ-1GNF20R0CInstall
AttenuatorR89Resistor20 ΩERJ-1GNF20R0CInstall
AttenuatorR92Resistor20 ΩERJ-1GNF20R0CInstall
AttenuatorR93Resistor20 ΩERJ-1GNF20R0CInstall
AttenuatorR90Resistor57.6 ΩERJ-1GNF57R6CInstall
AttenuatorR91Resistor57.6 ΩERJ-1GNF57R6CInstall
TermR105Resistor0 ΩERJ-1GN0R00CInstall
TermR107Resistor0 ΩERJ-1GN0R00CInstall
TermR96Resistor10 ΩERJ-1GEF10R0CInstall
TermR97Resistor10 ΩERJ-1GEF10R0CInstall
TermR108Resistor50 ΩERJ-1GEF49R9CInstall