Modem User Manual

107
PARAMETER MIN TYP MAX UNITS
10BASE-T
Receiver Threshold Voltage 100 mV
Receiver Squelch 300 400 585 mV
Receiver Common Mode Range 0 V
DD
Transmitter Output: Voltage
Source Resistance
±2 ±2.5 ±3
10
V
ohms
Transmitter Output DC Offset 50 mV
Transmitter Backswing Voltage to Idle 100 mV
Differential Input Voltage
±0.585 ±3
V
AUI
Receiver Threshold Voltage 60 mV
Receiver Squelch 180 240 300 mV
Receiver Common Mode Range 0 V
DD
Transmitter Output Voltage (R=78Ω) ±0.45 ±0.85 ±1.2
V
Transmitter Backswing Voltage to Idle 100 mV
Input Differential Voltage
±0.3 ±1.2
V
Output Short Circuit (to V
CC
or GND) Current
±150
mV
Differential Idle Voltage (measured 8.0 µs
after last positive transition of data frame)
±40
mV
CAPACITIVE LOAD ON OUTPUTS
nIOCS16, IOCHRDY 240 pF
INTRO-INTR3 120 pF
All other outputs 45 pF