JAJSDN8C March   2017  – April 2019 LMX2594

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      概略回路図
  4. 4 改訂履歴
  5. 5 概要（続き）
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Reference Oscillator Input
      2. 8.3.2  Reference Path
        1. 8.3.2.1 OSCin Doubler (OSC_2X)
        2. 8.3.2.2 Pre-R Divider (PLL_R_PRE)
        3. 8.3.2.3 Programmable Multiplier (MULT)
        4. 8.3.2.4 Post-R Divider (PLL_R)
        5. 8.3.2.5 State Machine Clock
      3. 8.3.3  PLL Phase Detector and Charge Pump
      4. 8.3.4  N-Divider and Fractional Circuitry
      5. 8.3.5  MUXout Pin
        1. 8.3.5.1 Lock Detect
        2. 8.3.5.2 Readback
      6. 8.3.6  VCO (Voltage-Controlled Oscillator)
        1. 8.3.6.1 VCO Calibration
        2. 8.3.6.2 Determining the VCO Gain
      7. 8.3.7  Channel Divider
      8. 8.3.8  Output Buffer
      9. 8.3.9  Power-Down Modes
      10. 8.3.10 Phase Synchronization
        1. 8.3.10.1 General Concept
        2. 8.3.10.2 Categories of Applications for SYNC
        3. 8.3.10.3 Procedure for Using SYNC
        4. 8.3.10.4 SYNC Input Pin
      11. 8.3.11 Phase Adjust
      12. 8.3.12 Fine Adjustments for Phase Adjust and Phase SYNC
      13. 8.3.13 Ramping Function
        1. 8.3.13.1 Manual Pin Ramping
          1. 8.3.13.1.1 Manual Pin Ramping Example
        2. 8.3.13.2 Automatic Ramping
          1. 8.3.13.2.1 Automatic Ramping Example (Triangle Wave)
      14. 8.3.14 SYSREF
        1. 8.3.14.1 Programmable Fields
        2. 8.3.14.2 Input and Output Pin Formats
          1. 8.3.14.2.1 Input Format for SYNC and SysRefReq Pins
          2. 8.3.14.2.2 SYSREF Output Format
        3. 8.3.14.3 Examples
        4. 8.3.14.4 SYSREF Procedure
      15. 8.3.15 SysRefReq Pin
    4. 8.4 Device Functional Modes
    5. 8.5 Programming
      1. 8.5.1 Recommended Initial Power-Up Sequence
      2. 8.5.2 Recommended Sequence for Changing Frequencies
      3. 8.5.3 General Programming Requirements
    6. 8.6 Register Maps
      1. 8.6.1  General Registers R0, R1, & R7
        1. Table 24. Field Descriptions
      2. 8.6.2  Input Path Registers
        1. Table 25. Field Descriptions
      3. 8.6.3  Charge Pump Registers (R13, R14)
        1. Table 26. Field Descriptions
      4. 8.6.4  VCO Calibration Registers
        1. Table 27. Field Descriptions
      5. 8.6.5  N Divider, MASH, and Output Registers
        1. Table 28. Field Descriptions
      6. 8.6.6  SYNC and SysRefReq Input Pin Register
        1. Table 29. Field Descriptions
      7. 8.6.7  Lock Detect Registers
        1. Table 30. Field Descriptions
      8. 8.6.8  MASH_RESET
        1. Table 31. Field Descriptions
      9. 8.6.9  SysREF Registers
        1. Table 32. Field Descriptions
      10. 8.6.10 CHANNEL Divider Registers
        1. Table 33. Field Descriptions
      11. 8.6.11 Ramping and Calibration Fields
        1. Table 34. Field Descriptions
      12. 8.6.12 Ramping Registers
        1. 8.6.12.1 Ramp Limits
          1. Table 35. Field Descriptions
        2. 8.6.12.2 Ramping Triggers, Burst Mode, and RAMP0_RST
          1. Table 36. Field Descriptions
        3. 8.6.12.3 Ramping Configuration
          1. Table 37. Field Descriptions
      13. 8.6.13 Readback Registers
        1. Table 38. Field Descriptions
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 OSCin Configuration
      2. 9.1.2 OSCin Slew Rate
      3. 9.1.3 RF Output Buffer Power Control
      4. 9.1.4 RF Output Buffer Pullup
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12デバイスおよびドキュメントのサポート
    1. 12.1 デバイス・サポート
      1. 12.1.1 デベロッパー・ネットワークの製品に関する免責事項
      2. 12.1.2 開発サポート
    2. 12.2 ドキュメントのサポート
      1. 12.2.1 関連資料
    3. 12.3 ドキュメントの更新通知を受け取る方法
    4. 12.4 コミュニティ・リソース
    5. 12.5 商標
    6. 12.6 静電気放電に関する注意事項
    7. 12.7 Glossary
  13. 13メカニカル、パッケージ、および注文情報

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

8.3.6.2 Determining the VCO Gain

The VCO gain varies between the seven cores and is the lowest at the lowest end of the band and highest at the highest end of each band. For a more accurate estimation, use Table 7:

Table 7. VCO Gain

CORE f1 f2 Kvco1 Kvco2
VCO1 7500 8600 73 114
VCO2 8600 9800 61 121
VCO3 9800 10800 98 132
VCO4 10800 12000 106 141
VCO5 12000 12900 170 215
VCO6 12900 13900 172 218
VCO7 13900 15000 182 239

Based on Table 7, Equation 4 can estimate the VCO gain for an arbitrary VCO frequency of fVCO:

Equation 4. Kvco = Kvco1 + (Kvco2 – Kvco1) × (fVCO – f1) / (f2 – f1)