EDGE142 Просмотр технического описания (PDF) - Semtech Corporation

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EDGE142

Per Pin timing Deskew w 4x2 Cross Point Switch

Semtech Corporation 

Edge142

EDGE HIGH-PERFORMANCE PRODUCTS

Application Information (continued)

Driver Fan Out

The Edge142 is also designed to support the fanning

out and deskewing of driver data, driver enable, and load

ePnINabDleessigcnraiplstitoonmsultiple test heads. By controlling

the multiplexer and output enable signals, the signals

may be routed to either test head.

By using the Edge142 for timing calibration, the timing

generator can generate “pure” timing signals, regardless

of the timing errors associated with driving one test head

vs. another. Removing the need for the timing generator

to perform the deskew function, the restriction on

consecutive edges may be improved.

Data

Timing

Generator

Dvr Enable

Edge142

Mux Out 1

Out 1

Out 2

Mux Out 0

Edge 142 Functions

• Test Head to Test Head Deskew

– TG restrictions on edge

regeneration improved

• Driver Data vs. Enable Deskew

• Rising vs. Falling Edge Deskew

• Test Head Multiplexing

• Cable Driver

Performance Benefits

• Point to Point Routing on all

transmission lines

TEST HEAD 1

Channel N

Device Under

Test

TEST HEAD 2

Channel N

Device Under

Test

 2000 Semtech Corp.

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www.semtech.com

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