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Ansoft Designer / Ansys Designer 在线帮助文档：

System Simulator >
System Component Models >
Digital Filters >
   Infinite Impulse Response Filter (IIR)       

Infinite Impulse Response Filter (IIR)

 

 


Property

Description

Units

Default

Range/Type

FILE

File name

None

<Project>

String

RIN1

Input 1 impedance

Ohm

Inf

(0, Inf]/Real

RIN2

Input 2 impedance

Ohm

Inf

(0, Inf]/Real

ROUT

Output impedance

Ohm

0

[0, Inf)/Real

Ports

Input1

Input 1 signal (real)

Input2

Input 2 clock signal (real, optional)

Output

Output signal (real)

 

Notes

1. This model implements IIR filter. I can be either clocked or non-clocked. If non-clocked, the second input port should be left open. The transfer function is of the form




(1)

2. The filter tap coefficients are provided in the data block in two-column XY DSP format. Each (X,Y) entry indicates the coefficients (ak, bk).

Netlist Form

IIR:NAME n1 n2 n3 FILE=”filename.dsp” [RIN1=val] [RIN2=val]

+ [ROUT=val]

Netlist Example

IIR:1 1 2 3 FILE="iirdata.dsp"



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