AM79C984 Advanced Micro Devices, AM79C984 Datasheet - Page 33

• Manufacturer Part Number: AM79C984
• Description: enhanced Integrated Multiport Repeater (eIMR)
• Manufacturer: Advanced Micro Devices

DC CHARACTERISTICS (continued)
Notes:
1. Parameter not tested.
2. LED current not included. Maximum current rating on LED drivers is 12 mA.
Parameter
Twisted Pair Ports (Continued)
Power Supply Current
Symbol
V
V
V
V
V
V
V
V
V
RXDTH
LTSQ+
LTSQ–
LTHS+
LTHS–
TSQ+
TSQ–
THS+
THS–
I
DD
RXD Positive Squelch Threshold
(peak)
RXD Negative Squelch Threshold
(peak)
RXD Post-Squelch Positive
Threshold (peak)
RXD Post-Squelch Negative
Threshold (peak)
RXD Positive Squelch Threshold
(peak) - Extended Distance Mode
RXD Negative Squelch Threshold
(peak) - Extended Distance Mode
RXD Post-Squelch Positive
Threshold - Extended Distance Mode
RXD Post-Squelch Negative
Threshold - Extended Distance Mode
RXD Switching Threshold
Power Supply Current
(Idle) (Note 2)
Power Supply Current
(Transmitting)
Parameter Description
P R E L I M I N A R Y
Am79C984A
Sinusoid
5 MHz<f<10 MHz
Sinusoid
5 MHz<f<10 MHz
Sinusoid
5 MHz<f<10 MHz
Sinusoid
5 MHz<f<10 MHz
Sinusoid
5 MHz<f<10 MHz
Sinusoid
5 MHz<f<10 MHz
Sinusoid
5 MHz<f<10 MHz
Sinusoid
5 MHz<f<10 MHz
(Note 1)
CLK = 20 MHz
V
CLK = 20 MHz
V
DD
DD
Test Conditions
= +5.25V
= +5.25V
Min
–520
–293
–365
–175
180
300
150
90
–60
–
–
Max
–300
–150
–180
100
350
520
293
365
175
–90
60
Unit
mV
mV
mV
mV
mV
mV
mV
mV
mV
mA
mA
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