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PDF IDTQS32XVH384 Data sheet ( Hoja de datos )
| Número de pieza | IDTQS32XVH384 | |
| Descripción | QUICKSWITCH PRODUCTS 2.5V/3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH | |
| Fabricantes | Integrated Device Technology | |
| Logotipo |  |
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IDTQS32XVH384
2.5V/3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH
QUICKSWITCH® PRODUCTS
2.5V/3.3V 20-BIT HIGH
BANDWIDTH BUS SWITCH
INDUSTRIALTEMPERATURERANGE
IDTQS32XVH384
FEATURES:
• N channel FET switches with no parasitic diode to VCC
– Isolation under power-off conditions
– No DC path to VCC or GND
– 5V tolerant in OFF and ON state
• 5V tolerant I/Os
• Low RON - 4Ω typical
• Flat RON characteristics over operating range
ww• wR.aDial-ttoa-Srhaeilestw4Uit.cchoinmg 0 - 5V
• Bidirectional dataflow with near-zero delay: no added ground
bounce
• Excellent RON matching between channels
• VCC operation: 2.3V to 3.6V
• High bandwidth - up to 500MHz
• LVTTL-compatible control Inputs
• Undershoot Clamp Diodes on all switch and control Inputs
• Low I/O capacitance, 4pF typical
• Available in 48-pin QVSOP (S1) package
APPLICATIONS:
• Hot-swapping
• 10/100 Base-T, Ethernet LAN switch
• Low distortion analog switch
• Replaces mechanical relay
• ATM 25/155 switching
FUNCTIONAL BLOCK DIAGRAM
A0 B0
DESCRIPTION:
The QS32XVH384 HotSwitch is a high bandwidth, 20-bit bus switch. The
QS32XVH384 has very low ON resistance, resulting in under 250ps
propagationdelaythroughtheswitch. Fourbanksoffiveswitchesarecontrolled
byindependent(xOE),LVTTLcompatiblesignals forbidirectionaldataflowwith
no added delay or ground bounce. In the ON state, the switches can pass
signals up to 5V. In the OFF state, the switches offer very high impedence at
the terminals.
The combination of near-zero propagation delay, high OFF impedance, and
over-voltage tolerance makes the QS32XVH384 ideal for high performance
communicationsapplications.
The QS32XVH384 is characterized for operation from -40°C to +85°C.
A10 B10
A4
B4 A14
B14
A5
B5 A15
B15
A9 B9 A19
1O E
3O E
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
c 2002 Integrated Device Technology, Inc.
4O E
2O E
1
B19
AUGUST 2002
DSC-5946/10
1 page  
IDTQS32XVH384
2.5V/3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH
INDUSTRIALTEMPERATURERANGE
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
TA = -40°C to +85°C
VCC = 2.5 ± 0.2V (1)
VCC = 3.3 ± 0.3V (1)
Symbol
Parameter
Min. (4)
Max. Min. (4)
Max.
tPLH DataPropagationDelay(2,3)
0.2
0.2
tPHL Ax to/from Bx
tPZL Switch Turn-On Delay
1.5
7.5 1.5
7.5
tPZH xOE to Ax/Bx
tPLZ Switch Turn-Off Delay
1.5
7 1.5
7
tPHZ xOE to Ax/Bx
fxOE OperatingFrequency-Enable(2,5)
10
20
Unit
ns
ns
ns
MHz
NOTES:
1. See Test Conditions under TEST CIRCUITS AND WAVEFORMS.
ww2.wT.Dhias tpaaSrahmeeetetr4iUs .gcuoamranteed but not production tested.
3. The bus switch contributes no propagation 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 0.2ns at CL = 50pF. Since this time constant is much smaller than the rise and fall times of typical driving signals, it adds very little propagation delay to the
system. Propagation 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 interaction with the load on
the driven side.
4. Minimums are guaranteed but not production tested.
5. Maximum toggle frequency for xOE control input (pass voltage > VCC, VIN = 5V, RLOAD ≥ 1MΩ, no CLOAD).
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet IDTQS32XVH384.PDF ] | |
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