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

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

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QS35861 ADVANCE INFORMATION
QUALITY SEMICONDUCTOR, INC.
QuickSwitch® Products High-Speed CMOS 10-Bit Switch With Series Resistor
DESCRIPTION
QS35861 ADVANCE INFORMATION
Enhanced channel with inherent diode Bidirectional signal flow Near-zero propagation delay, zero ground bounce Undershoot clamp diodes switch control pins Available 24-pin QSOP 24-pin SOIC (SO) packages
QS35861 provides high speed CMOS, TTL-compatible switches. Active Enable (BE) signal turns switches Each switch includes internal series termination resistors reduce reflection noise high speed applications. When closed, switch acts source (series) termination driver connected series resistor minimizes change-sharing effect ideal series termination unterminated PCB/transmission lines.
APPLICATIONS
Hot-swapping, hot-docking (Application Note AN-13) Voltage translation 3.3V; Application Note AN-11) Capacitance reduction isolation Noise, ground bounce, charge sharing reduction isolation Clock gating
Figure Functional Block Diagram
MDSL-00242-00 JULY 1997
QUALITY SEMICONDUCTOR, INC.
QS35861 ADVANCE INFORMATION Table Description
Name A0-A9 B0-B9 Function Enable QSOP, SOIC (SO)
Figure Configuration (All Pins View)
Table Function Table
A0-A9 Hi-Z B0-B9 Function Disconnect Connect
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, Pins Control Inputs QuickSwitch Channels (Switch OFF) QSOP, SOIC Unit
Note: Capacitance characterized production tested. total capacitance while switch please Section under "Input Switch Capacitance."
QUALITY SEMICONDUCTOR, INC.
MDSL-00242-00 JULY 1997
QS35861 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 Input) Off-State Current (Hi-Z) Switch Resistance(2) VOUT VCC, Switches Min., 0.0V, 15mA Switch Resistance(2) Min., 2.4V, Pass Voltage(3) IOUT -5µA 0.01 Test Conditions Guaranteed Logic HIGH Control Inputs Guaranteed Logic Control Inputs Typ(1) 0.01 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-00242-00 JULY 1997
QUALITY SEMICONDUCTOR, INC.
QS35861 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 Dynamic Power Supply Current MHz(4) Test Conditions(1) Max., VCC, Max., 3.4V(3), Control Input Max., Pins Open, Input Toggling Duty Cycle Typ(2) 0.25 Unit
Notes: conditions shown Min. Max., appropriate values specified under specifications. Typical Values 5.0V, +25°C Ambient. 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. inputs 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.
Unit
Symbol tPLH tPHL
Description(1)
tPZL tPZH tPLZ tPHZ
Data Propagation Delay Switch Turn-on Delay Switch Turn-off Delay(2)
(2,4)
QS35861
Notes: Test Circuit Waveforms. Minimums guaranteed production tested. This parameter guaranteed, production tested. time constant switch alone order 2.5ns QS35861 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-00242-00 JULY 1997

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

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