E142AHF Datasheet, PDF (11/19 Pages) Semtech Corporation – Per Pin timing Deskew w 4x2 Cross Point Switch

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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