E647ATF View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'E647ATF' PDF : 13 Pages View PDF
Edge647
TEST AND MEASUREMENT PRODUCTS
AC Characteristics
Parameter
Driver
Propagation Delay (Note 3)
DATA IN to DOUT
VTT EN to DOUT
DVR EN* to DOUT (Active to HiZ) (Note 5)
DVR EN* to DOUT (HiZ to Active) (Note 5)
DATA to VTT Prop Delay Matching (Note 4)
Symbol
Min
Typ
Max
Units
4
6
10
ns
5
7
11
ns
5
7
11
ns
5
7
11
ns
-2
+2
ns
Minimum Pulse Width (3V Swing)
4
5
ns
Toggle Rate (Note 6)
DOUT Output Rise/Fall Times (Notes 1, 4)
1V Swing (20% - 80%)
3V Swing (10% - 90%)
5V Swing (10% - 90%)
DOUT Output Overshoot/Undershoot (Notes 1, 4)
(3V Swing (Swing 2% + 50 mV))
∆Tpd vs. Overdrive (1.8V) (Note 4)
∆Tpd vs. DTr/DTf @ Digital Inputs (Note 4)
∆Tpd vs. Frequency (<=100 MHz) (Note 4)
Tpd Rise, Tpd Fall Errors (Note 4)
Comparator
Comparator Digital Outputs (Notes 2, 4)
Rise Time (10% - 90%)
Fall time (10% - 90%)
VINP to COMPA, COMPB
∆Tpd vs. Frequency (<= 100 MHz) (Note 4)
Minimum Pulse Width
Toggle Rate (Note 6)
Comparator Uncertainty Region (Notes 4, 7)
∆Tpd vs. Overdrive
400 mV Overdrive
200 mV Overdrive
Tpd Rise, Tpd Fall Errors
Switch Matrix
SW0, 1, 2 EN* to Switch On/Off
Fmax
100
MHz
1.2
1.6
ns
1.0
1.5
2.0
ns
2.0
3.5
ns
110
mV
100
ps
50
ps
200
ps
2.0
ns
tr
tf
Tpd
Fmax
5
100
-25
8
1.5
2.5
ns
1.5
2.5
ns
7
11
ns
200
ps
4
5
ns
MHz
+25
mV
1.0
ns
2.0
ns
2.0
ns
25
60
ns
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Into 1M of 50Ω transmission line terminated with 1KΩ and 5 pF with the proper series termination
resistor.
LOW LEVEL = 0V, HIGH LEVEL = 3.3V.
Measured at 2.5V with VH = +5V, VL = 0V.
Guaranteed by design and characterization. This parameter is not tested in production.
Tested with a 30 mA load.
Guaranteed by characterization. This parameter is tested in production against 40 MHz limits.
The region around the threshold where the comparator may have difficulty resolving the input state.
2005 Semtech Corp., Rev. 3, 2/28/05
12
www .semtech.com
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