6
TS3USB221E
ZHCSK77D –SEPTEMBER 2009–REVISED SEPTEMBER 2019
www.ti.com.cn
Copyright © 2009–2019, Texas Instruments Incorporated
(1) For Maximum or Minimum conditions, use the appropriate value specified under Electrical Characteristics for the applicable device type.
6.6 Dynamic Electrical Characteristics, V
CC
= 3.3 V ±10%
over operating range, T
A
= –40°C to 85°C, V
CC
= 3.3 V ±10%, GND = 0 V
PARAMETER TEST CONDITIONS TYP
(1)
UNIT
X
TALK
Crosstalk R
L
= 50 , f = 250 MHz –40 dB
O
IRR
OFF isolation R
L
= 50 , f = 250 MHz –40 dB
BW Bandwidth (–3 dB) R
L
= 50 1 GHz
(1) For Maximum or Minimum conditions, use the appropriate value specified under Electrical Characteristics for the applicable device type.
6.7 Dynamic Electrical Characteristics, V
CC
= 2.5 V ±10%
over operating range, T
A
= –40°C to 85°C, V
CC
= 2.5 V ±10%, GND = 0 V
PARAMETER TEST CONDITIONS TYP
(1)
UNIT
X
TALK
Crosstalk R
L
= 50 , f = 250 MHz -39 dB
O
IRR
OFF isolation R
L
= 50 , f = 250 MHz -40 dB
BW Bandwidth (3 dB) R
L
= 50 1 GHz
(1) For Maximum or Minimum conditions, use the appropriate value specified under Electrical Characteristics for the applicable device type.
(2) Specified by design
(3) The bus switch contributes no propagational delay other than the RC delay of the on resistance of the switch and the load capacitance.
The time constant for the switch alone is of the order of 0.25 ns for 10-pF load. Because this time constant is much smaller than the
rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch, when
used in a system, is determined by the driving circuit on the driving side of the switch and its interactions with the load on the driven
side.
6.8 Switching Characteristics, V
CC
= 3.3 V ±10%
over operating range, T
A
= –40°C to 85°C, V
CC
= 3.3 V ±10%, GND = 0 V
PARAMETER MIN TYP
(1)
MAX UNIT
t
pd
Propagation delay
(2) (3)
0.25 ns
t
ON
Line enable time
S to D, nD 30
ns
OE to D, nD 17
t
OFF
Line disable time
S to D, nD 12
ns
OE to D, nD 10
t
SK(O)
Output skew between center port to any other port
(2)
0.1 0.2 ns
t
SK(P)
Skew between opposite transitions of the same output (t
PHL
– t
PLH
)
(2)
0.1 0.2 ns
(1) For Maximum or Minimum conditions, use the appropriate value specified under Electrical Characteristics for the applicable device type.
(2) Specified by design
(3) The bus switch contributes no propagational delay other than the RC delay of the on resistance of the switch and the load capacitance.
The time constant for the switch alone is of the order of 0.25 ns for 10-pF load. Because this time constant is much smaller than the
rise/fall times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch, when
used in a system, is determined by the driving circuit on the driving side of the switch and its interactions with the load on the driven
side.
6.9 Switching Characteristics, V
CC
= 2.5 V ±10%
over operating range, T
A
= –40°C to 85°C, V
CC
= 2.5 V ±10%, GND = 0 V
PARAMETER MIN TYP
(1)
MAX UNIT
t
pd
Propagation delay
(2) (3)
0.25 ns
t
ON
Line enable time
S to D, nD 50
ns
OE to D, nD 32
t
OFF
Line disable time
S to D, nD 23
ns
OE to D, nD 12
t
SK(O)
Output skew between center port to any other port
(2)
0.1 0.2 ns
t
SK(P)
Skew between opposite transitions of the same output (t
PHL
– t
PLH
)
(2)
0.1 0.2 ns
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