P R E L I M I N A R Y
Test Conditions
Parameter
Symbol
Parameter Description
Min
Max
Unit
V
RXD Positive Squelch Threshold Ex-
tended Distance Mode
Sinusoid 5 MHz <f< 10 MHz
Sinusoid 5 MHz <f< 10 MHz
Sinusoid 5 MHz <f< 10 MHz
180
312
mV
LTSQ+
V
RXD Positive Squelch Threshold Ex-
tended Distance Mode
-312
80
-180
175
-80
mV
mV
mV
LTSQ-
V
RXD Post-Squelch Positive Threshold
Extended Distance Mode
LTHS+
V
RXD Post-Squelch Negative Threshold Sinusoid 5 MHz <f< 10 MHz
Extended Distance Mode
-175
LTHS-
V
RXD Switching Threshold
TXD± Differential Output Voltage Im-
balance
(Note 1)
-60
-40
+60
+40
mV
mV
RXDTH
V
TXI
I
TXD± Idle Output Current
DV = 5V
-2
2
µA
TXOFF
DD
(Note 2)
Power Supply Current
I
Power Supply Current (All 4 ports Trans-
mitting Including TXD current)
F=20MHzV =V
MAX
(Uses Twisted Pair Switching
Test Current)
-
-
380
120
mA
mA
DDTX
DD
I
Power Supply Current Idle
F= 20 MHz V =V
DD MAX
DDI
Note:
1. CMOS Mode on PAUI signals is guaranteed by design and is compatible with normal CMOS levels present on other QuIET
device pins.
Am79C988A
17
AMD [ AMD ]
