MC145181 Datasheet, PDF (54/71 Pages) Motorola, Inc – Dual 550/60 MHz PLL Frequency Synthesizer with DACs and Voltage Multiplier

Freescale S_Me_Cm₁₄i₅c₁o₈n₁ ductor, Inc.
Figure 58. Phase/Frequency Detector
HB4
HB3
In
fin
R_φ
R_φ PDout′
PDout
Ref
Ref
V_φ
V_φ
Figure 59. Phase Detector Logic
HB1
Ref
In1
Q1
Qout
V_φ
In2
If [V(Q1)>=1 & V(Q2)>=1 | V(delay)>=1, 5, 0]
U10
Delay
5 ns
HB2
In1
Q2
Qout
R_φ
In
In2
5 STP (5 ns – Time)
In1
V1
In2
In2
Figure 60. Behavioral RS Flip–flop
U5
Delay
1 ns
If [V(v1)>=1 & V(v2)<1 & V(In2)<1, 5]
If [V(In2)>=1, 0]
V2 _{If [V(In3)>=1 & V(In2)<1, 5, 0]}
In3
If [V(Q)>=1, 5, 0]
Q
Qout
54
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