dp83902a National Semiconductor Corporation, dp83902a Datasheet - Page 51

• Manufacturer Part Number: dp83902a
• Description: St-nictm Serial Network Interface Controller For Twisted Pair
• Manufacturer: National Semiconductor Corporation

AUI INTERFACE PINS (TX
OSCILLATOR PINS (X1 AND X2)
TWISTED PAIR INTERFACE PINS (TXO
Symbol
V
V
V
V
V
V
V
I
I
R
R
V
V
V
V
14 0 Preliminary Electrical Characteristics
Preliminary DC Specifications
OSC
X2
Note 1 This parameter is guaranteed by design and is not tested
OD
OB
U
DS
CM
IH
IL
SRON1
SRON2
SROFF
DIFF
TOL
TOH
Diff Output Voltage (TX
Diff Output Voltage Imbalance (TX
(Note 1)
Undershoot Voltage (TX
Diff Squelch Threshold
(RX
Diff Input Common Mode Voltage
(RX
X1 Input High Voltage
X1 Input Low Voltage
X1 Input Current
X2 Input Current
TXOd
Output Resistance
TXOd
Output Resistance
Receive Threshold
Turn-On Voltage (10BASE-T)
Receive Threshold
Turn-On Voltage (Reduced Level)
Receive Threshold
Turn-Off Voltage (Note 1)
Differential Mode Input
Voltage Range (Note 1)
g
g
g
g
and CD
and CD
TXO
TXO
g
Parameter
g
g
g
g
RX
) (Note 1)
) (Note 1)
Low Level
High Level
g
and CD
g
g
)
g
) (Note 1)
TXOd
g
)
g
g
)
T
and RXI
A
e
78X Termination and 270X
from Each to GND
78X Termination and 270X
from Each to GND
78X Termination and 270X
from Each to GND
X1 is Connected to an Oscillator
and GND X2 is Grounded
X1 is Connected to an Oscillator
and GND X2 is Grounded
GND X2 is Grounded
V
X2 Grounded
(Driven Mode)
I
I
V
OL
OH
IN
CC
0 C to 70 C V
e
e
e
g
e
25 mA
)
V
25 mA
51
5 0V
CC
Conditions
or GND
(Continued)
CC
e
5V
g
5% unless otherwise specified (Continued)
g
b
g
g
g
b
Min
2 0
550
175
300
175
175
0
3 1
Typical 40 mV
Typical 80 mV
V
SRON
g
b
g
g
a
Max
5 25
0 8
1200
15
15
585
300
300
3
4
3 1
b
100
Units
mA
mA
mV
mV
mV
mV
mV
X
X
V
V
V
V