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參數(shù)資料
| 型號： | E142AHF |
| 廠商： | Semtech Corporation |
| 英文描述： | Per Pin timing Deskew w 4x2 Cross Point Switch |
| 中文描述： | 每個引腳的時間糾偏瓦特4x2交叉點開關(guān) |
| 文件頁數(shù)： | 4/19頁 |
| 文件大小： | 179K |
| 代理商： | E142AHF |
4
2000 Semtech Corp.
www.semtech.com
EDGE HIGH-PERFORMANCE PRODUCTS
Circuit Description
Edge142
Chip Overview
The Edge142 is a 4 X 2 cross point switch and deskew
element, offering an 1.5 ns delay (Tspan), where the
VDELAY inputs adjust the overall propagation delay of
the part. In addition, the part supports a separate falling
edge delay of 300 ps (Tfall), where the VFALL inputs
control the falling edge delay.
Two additional outputs, which are selectable from either
OUT0 or OUT1, are provided. These outputs are useful
when attempting to fanout a selected input to multiple
destination without using and external buffer All output
signals may be enabled or disabled.
The Edge142 is designed to be monotonic and very
stable. Figure 1 shows a simplified block diagram
.
Figure 1. Edge142 Block Diagram
VDELAY0
VFALL0
OUT0 / 0*
OUT1 / 1*
MUX OUT0 / 0*
MUX OUT1 / 1*
VDELAY1
VFALL1
IN0 / 0*
IN1 / 1*
IN2 / 2*
IN3 / 3*
0
1
2
3
3
2
1
0
T
T
T
T
VMID1
MUX1 SEL
S11 S10
0
0
1
1
S01 S00
VMID0
MUX0 SEL EN* MUX EN
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