PADS_Eval_Guide

6.Rules, Differential Pairs.

7.Select Add

OUT_DATA_NEG OUT_DATA_POS

Available Pairs:

a.Select >>.

b.Select >>.

c.Add >>.

8..

Trace length:

Minimum 1000

Maximum 4000

Obstacles:

Allow pair to split around obstacles Maximums

.

9.OK Differential Pairs.

10.Close Rules.

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5.4

, PADS. PADS Layout. :

•&

•X Y

•– " "

•( , DUT)

1.>Select Components .

2.G100 Enter 100 mils.

3.- .

4.Ctrl+R ., .

: , Esc . ,

Esc .

1. , , .

2.,

. .

Reference Designators

1.>Select Documentation.

2., ReferenceDesignator. ReferenceDesignators.

: Tab.

: ,.

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5.5

PADS Layout .

PADS STANDARDVIA.

:

•,

STANDARDVIA :

1.Setup > Pad Stacks .

2.Pad Stack Type, Via.

3.<Start> Sh: Sz: Layer.

4.40 Diameter.

: Diameter,.

5.<Inner Layers> <End>.

6.24 Drill Size.

7.OK .

8.“Yes” “Are you sure you want to change all vias of type STANDARDVIA”.

Partial ( ) Slotted ( ).

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5.6

, CAM Photoplot. :

•Split/Mixed ( , WYSIWYG - )

•CAM ( )

:

•, , split/mixed

•-

, .

1.Setup, Layer Definition.

2.Electrical Layers Modify.

3.Modify Electrical Layer Count 4 OK.Reassign Electrical Layers, OK.

4.Lev. 2, Power.

5.Plane Type Split/Mixed.

6.AssignNets. PlaneLayer Nets.

: No PlanePlane Type.

7.+5V Add.

8.OK .

9.2 – 6 Lev. 3, GroundGND .

10.OK .

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6 PADS

ၣၤၢၦၔၟၞၜၖၔၡၜၳ

- 36 -

6.1

, PADS

. ,

PADS Layout PADS Router.

PADS Router

min/max 100/1500 :

1.Project Explorer, Net Objects, Nets,

“$” .

2.U1.2 J1.1.$<net name> .

3.>Properties.

4.Length.

5.Restrict Length.

6.100 Minimum length.

7.1500 Maximum length.

:

.Apply.

8.OK .

,

( 5.3) .

1.Project Explorer, Differential Pairs,OUT_DATA_NEG<- > OUT_DATA_POS.

2.>Properties.

min/max 1000/4000.

3.OK .

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6.2 -

PADS Router .. , . PADS Router:

•/ , , , ,, , ,

•- , , " "

•,

•" "

Top Bottom.

:

1.Tools Options.

2.Routing.

3.4 – Bottom Second Layer.

4.OK.

:

1.Edit Properties.

2.Grid.

3.Routing, 10X Increment, Y Increment.

4.OK .

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.

1.Layers List .

2., F4.

3.Layers. ( L 1 1)

( L 4 4)

:

1 J1 ( ).

1.1 J1 ( ).

2.>Interactive Route F3.

1500 mils.

3.F4.

: Backspace.

4.. : ,.

5.. , OUT_DATA_NEG OUT_DATA_POS (J1.2 or J1.3),

F3.

.

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- .

U1.2 J1.1 .

1.Tools Options, Tune/Diff Pairs, 20 Minimum Amplitude.

2.OK.

3., U1.2

J1.1 Shift .

4.>Unroute.

5.J1.1 F3, .

6.>Add Accordion.

7..

:,. .

8..

9.>Complete Accordion ( ).

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