dp83251 National Semiconductor Corporation, dp83251 Datasheet - Page 82

• Manufacturer Part Number: dp83251
• Description: Player Device Fddi Physical Layer Controller
• Manufacturer: National Semiconductor Corporation

7 0 Electrical Characteristics
AC Characteristics for the Clock Signals
Note 1 RXC duty cycle TXC duty cycle and TBC to TXC setup time are not tested but are assured by correlation with characterization data
Note 2 When PLAYER is used in FDDI applications TBC and LBC periods will be 80 ns and RXC and TXC periods will be 8 ns
Symbol
T23
T24
T25
T26
T27
T28
T29
TBC to TXC Hold Time
TBC to TXC Setup Time
TBC to LBC Skew
RXC Duty Cycle
TXC Duty Cycle
TBC Duty Cycle
LBC Duty Cycle
Parameter
(Continued)
FIGURE 7-6 Clock Signals
Conditions
(Note 1)
(Note 1)
(Note 1)
(Note 1)
82
Min
2 5
3 0
3 5
10
37
35
2
Typ
Max
5 0
4 5
22
43
45
TL F 10386 – 36
Units
ns
ns
ns
ns
ns
ns
ns