SNAU295 July   2024 LMK5C33216A

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2EVM Quick Start
  6. 3EVM Configuration
    1. 3.1  Power Supply
    2. 3.2  Logic Inputs and Outputs
    3. 3.3  Switching Between I2C and SPI
    4. 3.4  Generating SYSREF Request
    5. 3.5  XO Input
      1. 3.5.1 48MHz TCXO (Default)
      2. 3.5.2 External Clock Input
      3. 3.5.3 Additional XO Input Options
      4. 3.5.4 APLL Reference Options
    6. 3.6  Reference Clock Inputs
    7. 3.7  Clock Outputs
    8. 3.8  Status Outputs and LEDS
    9. 3.9  Requirements for Making Measurements
    10. 3.10 Typical Phase Noise Characteristics
  7. 4EVM Schematics
    1. 4.1  Power Supply Schematic
    2. 4.2  Alternative Power Supply Schematic
    3. 4.3  Power Distribution Schematic
    4. 4.4  LMK5C33216A and Input References IN0 to IN1 Schematic
    5. 4.5  Clock Outputs OUT0 to OUT3 Schematic
    6. 4.6  Clock Outputs OUT4 to OUT9 Schematic
    7. 4.7  Clock Outputs OUT10 to OUT15 Schematic
    8. 4.8  XO Schematic
    9. 4.9  Logic I/O Interfaces Schematic
    10. 4.10 USB2ANY Schematic
  8. 5EVM Bill of Materials
    1. 5.1 Loop Filter and Vibration Nonsensitive Capacitors
  9. 6Appendix A - TICS Pro LMK5B33216 Software
    1. 6.1  Using the Start Page
      1. 6.1.1 Step 1
      2. 6.1.2 Step 2
      3. 6.1.3 Step 3
      4. 6.1.4 Step 4
      5. 6.1.5 Step 5
      6. 6.1.6 Step 6
      7. 6.1.7 Step 7
    2. 6.2  Using the Status Page
    3. 6.3  Using the Input Page
      1. 6.3.1 Cascaded Configurations
        1. 6.3.1.1 Cascade VCO to APLL Reference
    4. 6.4  Using APLL1, APLL2, and APLL3 Pages
      1. 6.4.1 APLL DCO
    5. 6.5  Using the DPLL1, DPLL2, and DPLL3 Pages
      1. 6.5.1 DPLL DCO
    6. 6.6  Using the Validation Page
    7. 6.7  Using the GPIO Page
      1. 6.7.1 SYNC/SYSREF/1-PPS Page
    8. 6.8  Using the Outputs Page
    9. 6.9  EEPROM Page
    10. 6.10 Design Report Page

5.1 Loop Filter and Vibration Nonsensitive Capacitors

The capacitors used on the EVM use are X7R, which are ferromagnetic and, therefore, sensitive to vibration due to the piezoelectric effect. TI recommends to use non-ferromagnetic capacitors such as NP0, C0G, or Tantalum for applications in which the best performance is required in the presence of vibration.

At and below 47nF, C0G/NP0 capacitors are available in 0805 sized packages. For values 0.1µF and above Tantalum capacitors can be considered for vibration immune loop filter components.

Table 5-2 Examples of Substitute Capacitors Which are Vibration Immune
CAPACITOR VALUE VIBRATION SENSITIVE, X7R VIBRATION IMMUNE
3.3nF C0603C332K5RACTU, 0603 GRM1885C1H332JA01D, C0G/NP0, 0603
33nF C0603C333J3RACTU, 0603 C2012C0G1H333J125AA, C0G/NP0, 0805
47nF 06035C473JAT2A, 0603 C0805X473G3GEC7800, C0G/NP0, 0805 C0805C473J3GACTU, C0G/NP0, 0805
0.1µF C0603C104J3RACTU, 0603 GRM31C5C1E104JA01L, C0G/NP0, 1206 TAJR104K020RNJ, Tantalum, 0805
0.47µF GRM188R71A474KA61D, 0603 F921C474MPA, Tantalum, 0805
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