DP83955AV National Semiconductor, DP83955AV Datasheet - Page 51

• Manufacturer Part Number: DP83955AV
• Description: IC CTRLR RIC REPEATER 100-PQFP
• Manufacturer: National Semiconductor
• Series: LERIC™r

Specifications of DP83955AV

• Controller Type: LitE Repeater Interface Controller
• Voltage - Supply: 5V
• Current - Supply: 250mA
• Mounting Type: Surface Mount
• Package / Case: 84-LCC (J-Lead)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Operating Temperature: -
• Interface: -
• Other names: *DP83955AV

11 0 AC Timing Test Conditions
All specifications are valid only if the mandatory isolation is
employed and all differential signals are taken to be at AUI
side of the pulse transormer
Input Pulse Levels (TTL CMOS)
Input Rise and Fall Times (TTL CMOS)
Input and Output Reference Levels (TTL CMOS)
Note 1 100 pF include scope and jig capacitance
Note 2 S1
Capacitance
Derating Factor
Output timings are measured with a purely capacitive load
for 50 pF The following correction factor can be used for
other loads C
Symbol
C
C
S1
S1
S1
S1
IN
OUT
e
e
e
e
e
Open for timing tests for push pull outputs
V
GND for V
V
GND for High Impedance to active high and active high to High Impedance measurements
CC
CC
L t
for V
for High Impedance to active low and active low to High Impedance measurements
50 pF
OL
OH
T
test
test
A
e
Input Capacitance
Output Capacitance
a
25 C f
0 3 ns pF
Parameter
e
1 MHz
GND to 3 0V
1 5V
5 ns
Typ
7
7
51
Input Pulse Levels (Diff )
Input and Output Reference
TRI-STATE Reference Levels
Output Load (See Figure Below)
Note In the above diagram the TX
AUI side of the isolation (pulse transformer) The pulse transformer used for
all testing is the Pulse Engineering PE64103
Levels (Diff )
Units
pF
pF
TL F 11240 – 42
a
and TX
50% Point of the Differential
b
b
350 mV to
signals are taken from the
Float ( V)
TL F 11240 – 43
b
1315 mV
g
0 5V