D142 데이터 시트보기 (PDF) - Semtech Corporation

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D142

Per Pin timing Deskew w 4x2 Cross Point Switch

Semtech Corporation 

Edge142

EDGE HIGH-PERFORMANCE PRODUCTS

Application Information (continued)

Temperature Coefficient

The propagation delay temperature coefficient is shown

in the above two charts. The same information is

displayed on two different scales to enhance readability.

The 142 functions over the entire VDELAY voltage range,

but the timing error due to changes in the ambient

temperature becomes large for VDELAY < -1.1V. If

extreme accuracy is required, the recommended voltage

range is: +0.1V >= VDELAY >= -1.1V. If greater range is

needed and thermal drift can be tolerated, or the ambient

temperature is very tightly controlled, the entire voltage

range may be used.

Edge 142 Temperature Coefficient vs. VDELAY

vs. Ambient

60

50

40

30

20

10

0

-0.1

-0.4

-0.8

-1.1

VDELAY [V]

-1.3

Tpd+ 30-40°C

Tpd- 30-40°C

Tpd+ 40-50°C

Tpd- 40-50°C

Tpd+ 50-60°C

Tpd- 50-60°C

Edge 142 Temperature Coefficient vs. VDELAY

vs. Ambient

6

5

4

3

2

1

0

-0.1

-0.4

-0.8

-1.1

VDELAY [V]

-1.3

Tpd+ 30-40°C

Tpd- 30-40°C

Tpd+ 40-50°C

Tpd- 40-50°C

Tpd+ 50-60°C

Tpd- 50-60°C

 2000 Semtech Corp.

11

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