Figure 6. hybrid analog-digital pll, Figure 6, Cs2100-otp – Cirrus Logic CS2100-OTP User Manual
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CS2100-OTP
10
DS841F2
Figure 6. 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
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