MB15C03 データシートの表示（PDF） - Fujitsu

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MB15C03

Single Serial Input PLL Frequency Synthesizer On-Chip prescaler

Fujitsu 

MB15C03

(c) Lock detector

The lock detector detects the lock and unlock states of the PLL. The lock detector outputs “H” when the PLL

enters the lock state and outputs “L” when the PLL enters the unlock state as shown in Figure 2. When PS

= “L”, the lock detector outputs “H” compulsorily.

Figure 2 Phase comparator input/output waveforms (lock detector)

fr

fp

LD

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