DP83840AVCE National Semiconductor, DP83840AVCE Datasheet - Page 73

• Manufacturer Part Number: DP83840AVCE
• Description: IC ETHERNET PHYS LAYER 100-PQFP
• Manufacturer: National Semiconductor

Specifications of DP83840AVCE

• Controller Type: Ethernet Controller, 10Base-T
• Interface: IEEE 802.3af
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 335mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-MQFP, 100-PQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *DP83840AVCE

Version A
8.0 Electrical Specifications
8.3 CLOCK TIMING
8.3.1 Clock Reference and Clock Generation Timing
Parameter
CLK25M
TX_CLK
T4a
T1
T2
T3
T4
T5
T6
OSCIN
REFIN
OSCIN to CLK25M Delay OSCIN = 50 MHz
CLK25M Rise Time
CLK25M Fall Time
OSCIN to TX_CLK Delay 10 Mb/s Operation (MII
OSCIN to TX_CLK Delay 10 Mb/s Operation (MII
REFIN to TX_CLK Delay 100 Mb/s Operation
TX_CLK Duty Cycle
T1
Description
T2
T5
10% to 90%
90% to 10%
Nibble Mode)
Serial Mode)
10 Mb/s Nibble (2.5 MHz),
10 Mb/s Serial (10 MHz)
100 Mb/s Nibble (25 MHz)
T6
Notes
73
T1
T3
Min
-3.0
35
0
Typ
30
10
10
5
5
T4
+3.0
Max
40
65
Units
ns
ns
ns
ns
ns
ns
%