Cirrus Logic AN152 User Manual
By bill durbin and jerome johnston introduction, Cs552x overview
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Table of contents
Document Outline
- AN152: USING THE CS552X’S CHARGE PUMP DRIVE FOR EXTERNAL LOADS
- INTRODUCTION
- CS552X Overview
- Charge Pump Basics
- The CS552X’s Charge Pump
- Figure 4. ADC Charge Pump Regulation Loop
- Figure 5. Charge Pump Drive Diode Circuit For VD+ = 3V
- Figure 6. Load Current vs. Frequency for the CS5521/23 and CS5522/24/28; VA+ = VD+
- Figure 7. Load Current vs. Frequency for the CS5525/26; VA+ = VD+
- Figure 8. Load Current vs. Frequency; VA+ = VD+ = 5 V, Capacitor Size = 0.15 uF; CS5521/22/23/24/28
- Figure 9. Load Current vs. Frequency for VD+ = 3.0 V, Capacitor Sizes = 0.47 uF CS5521/22/23/24/28
- Figure 10. Load Current vs. Frequency for VA+ = 5.0 V, Capacitor Sizes = 0.47 uF CS5521/22/23/24/28
- Running the CS552X at Frequencies other than 32.768 kHz
- APPENDIX
- INTRODUCTION