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PDF IDTQS3VH16861 Data sheet ( Hoja de datos )
| Número de pieza | IDTQS3VH16861 | |
| Descripción | HIGH BANDWIDTH BUS SWITCH | |
| Fabricantes | Integrated Device Technology | |
| Logotipo |  |
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IDTQS3VH16861
2.5V / 3.3V 20-BIT FLOW-THROUGH PIN OUT, HIGH BANDWIDTH BUS SWITCH
INDUSTRIALTEMPERATURERANGE
QUICKSWITCH® PRODUCTS 2.5V/
IDTQS3VH16861
3.3V 20-BIT FLOW-THROUGH PIN OUT,
HIGH BANDWIDTH BUS SWITCH
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 500 MHz
• LVTTL-compatible control Inputs
• Undershoot Clamp Diodes on all switch and control Inputs
• Low I/O capacitance, 4pF typical
• Available in TSSOP 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
DESCRIPTION:
The QS3VH16861 HotSwitch with 20-bit flow-though pin out is a high
bandwidth bus switch. The QS3VH16861 has very low ON resistance,
resulting in under 250ps propagation delay through the switch. The switches
are controlled by active low enable (BEx) controls. 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 QS3VH16861 ideal for high perfor-
mance communications applications.
The QS3VH16861 is characterized for operation from -40°C to +85°C.
A0
B0 A10
B10
A9 B9 A19
BE1
BE2
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
INDUSTRIAL TEMPERATURE RANGE
c 2013 Integrated Device Technology, Inc.
1
B19
JUNE 2013
DSC-5875/6
1 page  
IDTQS3VH16861
2.5V / 3.3V 20-BIT FLOW-THROUGH PIN OUT, HIGH BANDWIDTH BUS SWITCH
INDUSTRIALTEMPERATURERANGE
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
TA = -40°C to +85°C
Symbol
tPLH
Parameter
Data Propagation Delay(2,3)
VCC = 2.5 ± 0.2V (1)
Min. (4)
Max.
⎯ 0.2
VCC = 3.3 ± 0.3V (1)
Min. (4)
Max.
⎯ 0.2
Unit
ns
tPHL A to B or B to A
tPZH Switch Turn-On Delay
1.5 8.5
1.5
8 ns
tPZL BEx to xA or xB
tPHZ Switch Turn-Off Delay
1.5 7.5 1.5 7.5 ns
tPLZ BEx to xA or xB
fBEx Operating Frequency - Enable (2,5) ⎯ 10 ⎯ 20 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 BEx control input (pass voltage > VCC, VIN = 5V, RLOAD > 1MΩ, no CLOAD).
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet IDTQS3VH16861.PDF ] | |
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