QUALITY SEMICONDUCTOR, INC. QuickSwitch® Products High-Speed CMOS

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QUALITY SEMICONDUCTOR, INC. QuickSwitch® Products High-Speed CMOS

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QS35390 ADVANCE INFORMATION
QUALITY SEMICONDUCTOR, INC.
QuickSwitch® Products High-Speed CMOS QuickSwitch 16:8 Multiplexer With Damping Resistor
DESCRIPTION
QS35390 ADVANCE INFORMATION
FEATURES/BENEFITS
Enhanced channel with inherent diode 16:8 multiplexer function with zero delay Bidirectional switches connect inputs outputs Zero propagation delay, zero ground bounce compatible control inputs Undershoot clamp diodes control switch pins Direct bidirectional connection mux, demux Available 28-pin SOIC (SO) QSOP
QS35390 provides 16:8 multiplexer logic switch. QS35390 adds internal resistor reduce reflection noise high-speed applications. enable inputs connect inputs common pin, respectively. multiplexer function used select route logic signals zero delay, isolate capacitance, form crossbar switches, etc. series resistor minimizes charge-sharing effect ideal series termination unterminated PCB/transmission lines. Mux/Demux devices provide order magnitude faster speed than equivalent logic devices.
APPLICATIONS
Video, audio, graphics switching, muxing Hot-swapping, hot-docking (Application Note AN-13) Voltage translation 3.3V; Application Note AN-11) funneling
Figure Functional Block Diagram
MDSL-00257-01 JULY 1997
QUALITY SEMICONDUCTOR, INC.
QS35390 ADVANCE INFORMATION Table Description
Name A0-A9 B0-B9 AEN, Description Switch Enable
Figure Configuration (All Pins View)
SOIC (SO), QSOP
Table Function Table
A0-A9 B0-B9 Function Disconnect
Table Absolute Maximum Ratings
Supply Voltage Ground -0.5V +7.0V Switch Voltage -0.5V +7.0V Input Voltage -0.5V +7.0V Input Voltage (for pulse width 20ns) -3.0V Output Current Max. Sink Current/Pin 120mA Maximum Power Dissipation watts TSTG Storage Temperature -65° +150°C
Note: ABSOLUTE MAXIMUM CONTINUOUS RATINGS those values beyond which damage device occur. Exposure these conditions conditions beyond those indicated adversely affect device reliability. Functional operation under absolute-maximum conditions implied.
Table Capacitance
25°C, 1MHz, VOUT Pins Control Inputs QuickSwitch Channels (Switch OFF) Demux SOIC, QSOP Unit
Note: Capacitance guaranteed, tested values typical. total capacitance while switch please Section under "Input Switch Capacitance."
QUALITY SEMICONDUCTOR, INC.
MDSL-00257-01 JULY 1997
QS35390 ADVANCE INFORMATION Table Electrical Characteristics Over Operating Range
-40°C +85°C, 5.0V Symbol Parameter Input HIGH Voltage Input Voltage Input Leakage Current (Control Inputs) Off-State Current (Hi-Z) Switch Resistance(2) Switch Resistance(2) Pass Voltage(3) Test Conditions Guaranteed Logic HIGH Control Inputs Guaranteed Logic Control Inputs VOUT Min., 0.0V 15mA Min., 2.4V IOUT -5µA Typ(1) Unit
Notes: Typical values indicate 5.0V 25°C. diagram explaining procedure measurement, please Section under Electrical Characteristics." Max. value guaranteed, production tested. Pass voltage guaranteed, production tested.
Figure Typical Resistance 5.0V
(ohms)
(Volts)
MDSL-00257-01 JULY 1997
QUALITY SEMICONDUCTOR, INC.
QS35390 ADVANCE INFORMATION Table Power Supply Characteristics Over Operating Range
-40°C +85°C, 5.0V Symbol ICCQ QCCD Parameter Quiescent Power Supply Current Power Supply Current Input HIGH(2) Dynamic Power Supply Current MHz(3) Test Conditions(1) Max., VCC, Max., 3.4V, Control Input Max., Pins Open, Control InputsToggling Duty Cycle 0.25 Unit
Notes: conditions shown Min. Max., appropriate values specified under specifications. driven input (VIN 3.4V, control inputs only). pins contribute ICC. This current applies control inputs only represents current required switch internal capacitance specified frequency. I/Os generate significant currents they transition. This parameter guaranteed, production tested.
Table Switching Characteristics Over Operating Range
-40°C +85°C, 5.0V CLOAD 50pF, RLOAD unless otherwise noted. QS35390 Symbol tPLH tPHL tPZL tPZH tPLZ tPHZ Description
(2,4)
Unit
Data Propagation Delay to/from Switch Turn-on Delay AEN/BEN Switch Turn-off Delay(2) AEN/BEN
Notes: Test Circuit Waveforms. Minimums guaranteed, production tested. This parameter guaranteed, production tested. time constant switch alone order 2.5ns QS35390 50pF. switch contributes propagation delay other than delay resistance switch load capacitance. Since this time constant much smaller than rise/fall times typical driving signals, adds very little propagation delay system. Propagation delay switch when used system determined driving circuit driving side switch interaction with load driven side.
QUALITY SEMICONDUCTOR, INC.
MDSL-00257-01 JULY 1997

QUALITY SEMICONDUCTOR, INC. QuickSwitch® Products High-Speed CMOS

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