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參數(shù)資料
| 型號(hào)： | PI3USB40 |
| 英文描述： | ASSP | 3.3V. Wide Bandwidth. 8-Channel. 2:1 Mux/Demux USB 2.0 Switch |
| 中文描述： | ASSP的| 3.3。寬帶。 8通道。 2:1復(fù)用/解復(fù)用的USB 2.0開(kāi)關(guān) |
| 文件頁(yè)數(shù)： | 3/6頁(yè) |
| 文件大?。?/td> | 376K |
| 代理商： | PI3USB40 |
3
PS8698 07/25/03
PI3USB40
3.3V, Wide Bandwidth, 8-Channel, 2:1,
Mux/Demux USB 2.0 Switch with Single Enable
Power Supply Characteristics
Notes:
1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 3.3V,
T
A
= 25°C ambient and maximum loading.
3. Per TTL driven input (control inputs only); A and B pins do not contribute to I
CC
.
Parameter
Description
Test Conditions
Min.
Typ.
(2)
Max.
Units
X
TALK
Crosstalk
RL = 100, f = 250MHz
-
-27
-
dB
O
IRR
OFF Isolation
-
-32
-
BW
Bandwidth –3dB
RL = 100
-
500
-
MHz
Notes:
1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Guaranteed 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 0.25ns for 10pF load. Since 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.
Dynamic Electrical Characteristics Over the Operating Range
(TA=-40o to +85oC, VCC=3.3V±10%, GND=0V)
Parameters
Description
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Units
I
CC
Quiescent Power Supply Current
V
CC
= Max., V
IN
= GND or V
CC
-
-
800
μA
Capacitance
(
T
A
= 25°C, f = 1MHz)
Notes:
1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 3.3V,
T
A
= 25°C ambient and maximum loading.
3. Measured by the voltage drop between A and B pins at indicated current through the switch. ON-resistance is determined by the lower of the
voltages on the two (A & B) pins.
4. This parameter is determined by device characterization but is not production tested.
Parameters
(5)
Description
Test Conditions
Typ.
Max.
Units
C
IN
Input Capacitance
V
IN
= 0V
2.0
3.0
pF
C
OFF
Port I Capacitance, Switch OFF
4.0
6.0
C
ON
Switch Capacitance, Switch ON
6.0
10.0
Paramenter
Description
Test
Conditions
Min.
Typ.(2)
Max.
Units
tPD
Propagation Delay(2,3)
-
0.25
ns
tPZH, tPZL
Line Enable Time - SEL to YN, IN
0.5
-
15
tPHZ, tPLZ
Line Disable Time - SEL to YN, IN
0.5
-
9
tSK(o)
Output Skew between center port (Y4 to Y5) to any other port(2)
-
0.1
0.2
tSK(p)
Skew between opposite transitions of the same output (tPHL
- tPLH) (2)
-
0.1
0.2
Switching Characteristics
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