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AM79C874VC Fiches technique(PDF) 46 Page - Advanced Micro Devices

No de pièce AM79C874VC
Description  NetPHY-1LP Low Power 10/100-TX/FX Ethernet Transceiver
PDF  60 Pages
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Fabricant  AMD [Advanced Micro Devices]
Site Internet  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM79C874VC Fiches technique(HTML) 46 Page - Advanced Micro Devices

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Am79C874
P R E L I M INARY
SWITCHING CHARACTERISTICS
Note: Parametric values are the same for commercial devices and industrial devices.
System Clock Signal
Figure 14.
Clock Signal
MLT-3 Signals
Figure 15.
MLT-3 Test Waveform
Symbol
Parameter Description
Min.
Max.
Unit
tCLK
REFCLK Period
39.998
40.002
ns
tCLKH
REFCLK Width HIGH
18
22
ns
tCLKL
REFCLK Width LOW
18
22
ns
tCLR
REFCLK Rise Time
-
5
ns
tCLF
REFCLK Fall Time
-
5
ns
Symbol
Parameter Description
Min.
Max.
Unit
tTXR
Rise Time of MLT-3 Signal
3.0
5.0
ns
tTXF
Fall Time of MLT-3 Signal
3.0
5.0
ns
tTXRFS
Rise Time and Fall Time Symmetry of MLT-3 Signal
-
5
%
tTXDCD
Duty Cycle Distortion Peak to Peak
-
0.5
ns
tTXJ
Transmit Jitter Using Scrambled Idle Signals
-
1.4
ns
tCLR
80%
20%
tCLF
tCLKH
tCLKL
tCLK
REFCLK
22235I-16
tTXR
tTXF
16 ns
TX
±
tXTDCD
tXTDCD
1
0
1
0
1
0
1
22235I-17



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