am79c961a Advanced Micro Devices, am79c961a Datasheet - Page 135

• Manufacturer Part Number: am79c961a
• Description: Pcnet?-isa Ii Jumperless, Full Duplex Single-chip Ethernet Controller For Isa
• Manufacturer: Advanced Micro Devices

DC CHARACTERISTICS (continued)
Attachment Unit Interface (continued)
Twisted Pair Interface
Parameter
V
Symbol
I
V
V
V
AODOFF
V
V
V
V
V
V
AODOFF
V
V
V
R
V
V
I
V
V
V
IRDVD
LTSQ+
LTSQ–
LTHS+
LTHS
IRXD
TSQ
TSQ–
THS+
THS–
CMT
ASQ
OPD
TIVB
TIDV
RXD
ODI
ATH
ICM
+
–
Transmit Differential Output Idle
Voltage
Transmit Differential Output Idle
Current
Transmit Output Common Mode
Voltage
DO Transmit Differential Output
Voltage Imbalance
Receive Data Differential Input
Threshold
DI and CI Differential Input
Threshold (Squelch)
DI and CI Differential Mode Input
Voltage Range
DI and CI Input Bias Voltage
DO Undershoot Voltage at Zero
Differential on Transmit Return to
Zero (ETD)
Input Current at RXD
RXD Differential Input Resistance (Note 5)
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)
Parameter Description
R
R
R
R
(Note 5)
I
(Note 5)
AV
I
AV
Sinusoid
5 MHz
Sinusoid
5 MHz
Sinusoid
5 MHz
Sinusoid
5 MHz
LRT = 1 (Note 6)
LRT = 1 (Note 6)
LRT = 1 (Note 6)
LRT = 1 (Note 6)
IN
IN
Am79C961A
L
L
L
L =
SS
DD =
= 0 mA
= 0 mA
= 78
= 78
= 78
Test Conditions
78
< V
+5 V
f 10 MHz
f 10 MHz
f 10 MHz
f 10 MHz
IN
(Note 5)
(Note 4)
< AV
DD
AV
AV
DD
–275
–500
–520
–293
–312
–156
–1.5
DD
–3.1
Min
–40
–35
300
150
180
2.5
–1
10
90
–3.0
– 3.0
AV
AV
AV
DD
–160
–100
–300
–150
–180
Max
+1.5
+3.1
DD
+40
500
520
293
312
156
–90
+1
25
35
DD
–1.0
– 1.5
Unit
mV
mA
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
K
V
V
V
V
V
A
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