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7.5 AC Electrical Characteristics
The specifications in this section are valid for the range of operating conditions defined in Table 24.
7.5.1 General AC specifications
Table 28. Clock requirements and switching characteristics
Parameter Min Max Units Conditions
Clock Frequency 25 – 100 ppm 25 + 100 ppm MHz
P_TX_CLK_M_RX_CLK,
P_RX_CLK_M_TX_CLK
Clock Frequency 19.44 – 20 ppm 19.44 + 20 ppm MHz
TX_SONETCLK,
RX_SONETCLK
SONET Clocks Min Low & 18 33.4 ns Duty Cycle 35% - 65%
High Time @ 51.4 ns
MII Clocks Min Low & High 14 26 ns Duty Cycle 35% - 65%
Time @ 40 ns
Output Rise Time 0.65 5 ns Load = 15 pF (from 30% - 70% =
1.2 V)
Output Fall Time 0.65 5 ns Load = 15 pF (from 30% -70% =
1.2 V)
HiZ Leakage Current -10 10 µA
7.4 DC Characteristics
The specifications in this section are valid for the range of operating conditions defined in Table 24.
Table 26. DC Electrical Characteristics
Symbol Parameter Min Max Conditions Units
V
OH
High Level Output Voltage DVDD-0.1 DVDD I
OH
= 20µA Volts
V
OL
Low Level Output Voltage GND 0.4 I
OL
= 6mA Volts
V
IH
High Level Input Voltage 0.7xDVDD DVDD Volts
V
IL
Low Level Input Voltage 0.0 0.3xDVDD Volts
I
IL
/I
IH
Input Leakage Current -10.0 +10.0 µA
Table 27. Power Dissipation
Parameter Min. Typ. Max. Units
Power Dissipation (Operational) 250 450 mW