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Número de pieza | IDTQS3VH384 | |
Descripción | 2.5V / 3.3V 10-BIT HIGH BANDWIDTH BUS SWITCH | |
Fabricantes | Integrated Device Technology | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de IDTQS3VH384 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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2.5V / 3.3V 10-BIT HIGH BANDWIDTH BUS SWITCH
INDUSTRIALTEMPERATURERANGE
QUICKSWITCH® PRODUCTS
2.5V / 3.3V 10-BIT HIGH
BANDWIDTH BUS SWITCH
IDTQS3VH384
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
• Rail-to-rail switching 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 QSOP and TSSOP packages
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
DESCRIPTION:
The QS3VH384 HotSwitch is a high bandwidth, 10-bit bus switch. The
QS3VH384 has very low ON resistance, resulting in under 250ps propagation
delay through the switch. Two banks of five switches are controlled by
independent(xOE),LVTTLcompatiblesignals forbidirectionaldataflowwith
noaddeddelayorgroundbounce. IntheONstate,theswitchcanpasssignals
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 QS3VH384 ideal for high performance
communicationsapplications.
The QS3VH384 is characterized for operation from -40°C to +85°C.
B0
A4 B4
A5 B5
A9
1OE
2O E
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
c 2014 Integrated Device Technology, Inc.
1
B9
SEPTEMBER 2008
DSC-5895/13
1 page IDTQS3VH384
2.5V / 3.3V 10-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
tPLH
tPHL
tPZL
tPZH
tPLZ
tPHZ
Parameter
Data Propagation Delay(2,3)
Ax to/from Bx
Switch Turn-On Delay
xOE to Ax/Bx
Switch Turn-Off Delay
xOE to Ax/Bx
Min. (4)
⎯
1.5
1.5
Max. Min. (4)
0.2 ⎯
7.5 1.5
7 1.5
Max.
0.2
7.5
7
fxOE OperatingFrequency-Enable(2,5)
⎯
10 ⎯
20
Unit
ns
ns
ns
MHz
NOTES:
1. See Test Conditions under TEST CIRCUITS AND WAVEFORMS.
2. This parameter is guaranteed 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 IDTQS3VH384.PDF ] |
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