MAX4890 Просмотр технического описания (PDF) - Maxim Integrated
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MAX4890 Datasheet PDF : 17 Pages
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10/100/1000 Base-T Ethernet LAN Switch
ELECTRICAL CHARACTERISTICS (continued)
(V+ = +3V to +3.6V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at V+ = 3.3V, TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
Crosstalk
Differential Crosstalk
SWITCH DYNAMICS
VCT1 Any switch to any 1MHz < f < 30MHz
-45
VCT2 switch RL = 100Ω, 30MHz < f < 60MHz
-40
VCT3
Figure 3
60MHz < f < 100MHz
-35
VDCT1
1MHz < f < 30MHz
-60
VDCT2
RL = 100Ω,
Figure 4
30MHz < f < 60MHz
-55
VDCT3
60MHz < f < 100MHz
-50
On-Channel -3dB Bandwidth
Off-Capacitance
On-Capacitance
Off-Capacitance, LED Switches
On-Capacitance, LED Switches
Turn-On Time
Turn-Off Time
Propagation Delay
BW
COFF
CON
COFFLED
CONLED
tON
tOFF
tPLH, tPHL
RL = 100Ω, Differential pair
f = 1MHz, _B_ inputs
f = 1MHz, _B_ inputs
f = 1MHz, _LED inputs
f = 1MHz, _LED inputs
VA_ = 1V, Figure 5
VA_ = 1V, Figure 5
CL = 10pF, Figure 6
1000
3.5
6.5
20
22
25
50
20
40
0.15
Output Skew Between Ports
tSK(o)
Skew between A4 and A5 and any other
port, Figure 7
0.01
Output Skew Same Port
tSK(p)
Skew between opposite transitions in same
port
0.07
SWITCH LOGIC
Input-Voltage Low
Input-Voltage High
Input-Logic Hysteresis
Input Leakage Current
Operating Supply-Voltage Range
VIL
VIH
VHYST
ISEL
V+
V+ = 3.6V, VSEL = 0 or V+
0.8
2.0
100
-5
+5
3
3.6
Quiescent Supply Current
I+
V+ = 3.6V, VSEL = 0 or V+
280 450
Note 2: Specifications at -40°C are guaranteed by design.
Note 3: Guaranteed by design.
UNITS
dB
dB
MHz
pF
pF
pF
pF
ns
ns
ns
ns
ns
V
mV
uA
V
µA
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