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Ansoft Designer / Ansys Designer 在线帮助文档：

System Simulator >
System Component Models >
Frequency Synthesizers >
   Phase and Frequency Comparator (PFCOMP)       

Phase and Frequency Comparator (PFCOMP)

 

 


Property

Description

Units

Default

Range/Type

VL

Low voltage level

Volt

0

(-Inf, Inf)/Real

VH

High voltage level

Volt

1

(-Inf, Inf)/Real

RIN1

Input1 impedance

Ohm

Inf

(0, Inf]/Real

RIN2

Input2 impedance

Ohm

Inf

(0, Inf]/Real

ROUT

Output impedance

Ohm

0

[0, Inf)/Real

Ports

Input1

Input1 signal (real)

Input2

Input2 signal (real)

Output

Output signal (real)

 

Limits

1. VL < VH

Notes

1. PFCOMP acts like an exclusive OR gate with settable levels. This is the same as Phase Com­parator on the MC14046 IC.

2. Let VTH = (VL + VH)/2

where V1(t) and V2(t) are two input signals and V3(t) is the output signal.

3. The two input signal voltages to the PFCOMP element are shown; PFCOMP parameters are VL=3 and VH=5.

 

 

Netlist Form

PFCOMP:Name n1 n2 n3 VL=val VH=val [Rin1=val] [Rin2=val] [Rout=val]

Netlist Example

PFCOMP:1 1 2 3 VL=3 VH=5



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