Cirrus Logic CS2100-CP - Manual (Page 12)

CS2100-CP
12 DS840F2
Figure 8. Hybrid Analog-Digital PLL
N
Digital Filter
Frequency
Comparator for
Frac-N Generation
Frequency Reference
Clock
Delta-Sigma Fractional-N Frequency Synthesizer
Digital PLL and Fractional-N Logic
Output to Input Ratio for Hybrid mode
Fractional-N
Divider
Timing Reference
Clock
PLL Output
Voltage Controlled
Oscillator
Internal
Loop Filter
Phase
Comparator
Delta-Sigma
Modulator