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PI3USB20LEX Datasheet, PDF (3/6 Pages) Pericom Semiconductor Corporation – 3.3V, Wide Bandwidth, 4-Channel, 2:1 Mux/DeMux USB 2.0 Switch w/ Single Enable
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PI3USB20
3.3V, Wide Bandwidth, 4-Channel,
2:1 Mux/DeMux USB 2.0 Switch
Power Supply Characteristics
Parameters
Description
Test Conditions(1)
Min. Typ.(2) Max.
ICC
Quiescent Power Supply Current VCC = Max., VIN = GND or VCC
800
Notes:
1. For max. or min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 3.3V, TA = 25C ambient and maximum loading.
3. Per TTL driven input (control inputs only); A and B pins do not contribute to ICC.
Units
µA
Dynamic Electrical Characteristics Over the Operating Range
(TA = –40°C to +85°C, VCC = 3.3V ±10%, GND = 0V)
Parameters
Description
Test Conditions
XTALK
OIRR
Crosstalk
OFF Isolation
RL = 100Ω, f = 250 MHz
BW
Bandwidth -3dB
RL = 100Ω
Min.
Typ.(1)
-27
-32
500
Max.
Units
dB
MHz
Switching Characteristics
Parameters
Description
tPD
Propagation Delay(2,3)
Test
Conditions
Min. Typ.(1) Max. Units
0.25
tPZH, tPZL Line Enable Time - SEL to YN, NI0, IN
0.5
15.0
tPHZ, tPLZ
tSK(o)
Line Disable Time - SEL to YN, NI0, IN
Output Skew between center port to any other port(2)
0.5
9.0 ns
0.1 0.2
tSK(p)
Skew between opposite transitions of the same output (tPHL
- tPLH) (2)
0.1 0.2
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.
3
PS8697B
02/01/05
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