AM79C100 Advanced Micro Devices, AM79C100 Datasheet - Page 16

• Manufacturer Part Number: AM79C100
• Description: Twisted-Pair Ethernet Transceiver Plus (TPEX Plus)
• Manufacturer: Advanced Micro Devices

DC CHARACTERISTICS (continued)
16
Twisted Pair Interface
Power Supply Current
Notes:
1. Parameter not tested.
2. Uses switching test load.
Parameter
Symbol
I
V
V
V
V
V
V
DDPRDN
V
V
V
V
I
V
R
V
I
V
RXDTH
V
IREXT
V
TXOFF
LTSQ+
LTSQ–
LTHS+
LTHS–
R
IRXD
TSQ+
TSQ–
THS+
THS–
I
TIVB
TIDV
RXD
TXH
DD
TXL
TXI
TX
Parameter Description
Input Current at RXD
RXD Differential Input
Resistance
RXD+, RXD– Open Circuit
Input Voltage (Bias)
Differential Mode Input
Voltage Range (RXD )
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)
RXD Negative
Squelch Threshold (Peak)
RXD Post-Squelch Positive
Threshold (Peak)
RXD Post-Squelch Negative
Threshold (Peak)
RXD Switching Threshold
TXD and TXP
Output HIGH Voltage
TXD and TXP
Output LOW Voltage
TXD and TXP Differential
Output Voltage Imbalance
TXD and TXP
Idle Output Voltage
TXD and TXP Differential
Driver Output Impedance
Input Current at REXT Pin
Power Supply Current
(Idle)
Power Supply Current
(Transmitting—No TP load)
Power Supply Current
(Transmitting—with TP load)
Power Supply Current
in Power Down Mode
Test Conditions
AV
(Note 1)
I
AV
Sinusoid
5 MHz
Sinusoid
5 MHz
Sinusoid
5 MHz
Sinusoid
5 MHz
LRT = LOW
LRT = LOW
LRT = LOW
LRT = LOW
(Note 1)
DV
(Note 2)
DV
(Note 2)
DV
(Note 1)
R
AV
PRDN/RST = HIGH
DV
PRDN/RST = LOW
PRDN/RST = HIGH
DV
PRDN/RST = LOW
IN
Am79C100
EXT
SS
= 0 mA
DD
SS
SS
DD
DD
DD
DD
= 24.3 k
< V
= +5 V
= 0 V
= +5 V
= +5 V
= AV
= AV
= +5 V
f
IN
f
f
f
DD
DD
< AV
10 MHz
10 MHz
10 MHz
10 MHz
= +5 V
= +5 V
DD
1%
DV
Av
DV
–500
DD
–520
–293
–312
–175
–3.1
DD
Min
300
150
180
–60
–40
–40
10
90
SS
–3.0
–0.6
DV
Av
DV
–300
–150
–180
DD
SS
500
520
293
312
175
–90
120
150
Max
3.1
60
40
40
40
40
95
4
DD
+ 0.6
–1.5
AMD
Unit
uA
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mA
mA
mA
mA
K
V
V
V
V
A