QUALITY SEMICONDUCTOR, INC. QuickSwitch® Products High-Speed CMOS
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QS3LR384 ADVANCE INFORMATION
QUALITY SEMICONDUCTOR, INC.
QuickSwitch® Products High-Speed CMOS 10-Bit Power, Resistance Switches
DESCRIPTION
QS3LR384 ADVANCE INFORMATION
Enhanced channel with inherent diode bidirectional switches connect inputs outputs Zero propagation delay, zero ground bounce Undershoot clamp diodes switch control pins Ultra power with 0.2µA typical enables control five bits each Available 24-pin SOIC QSOP
QS3LR384 provides high-speed CMOS TTL-compatible switches. banks switches controlled independent Enable (BE) signals. very resistance (2.5) QS3LR384 allows inputs connected without adding propagation delay without generating additional ground bounce noise. resistance QS3LR384 makes ideal hot-plugging hot-swapping applications.
APPLICATIONS
Hot-swapping hot-docking (Application Note AN-13) resistance Compact applications Voltage translation 3.3V; Application Note AN-11) Power conservation Capacitance reduction isolation isolation Clock gating
Figure Functional Block Diagram
MDSL-00308-02 NOVEMBER 1998
QUALITY SEMICONDUCTOR, INC.
QS3LR384 ADVANCE INFORMATION Table Description
Name A0-A9 B0-B9 BEA, Function Switch Enable
Figure Configuration (All Pins View)
SOIC, QSOP
Table Function Table
B0-B4 Hi-Z A0-A4 Hi-Z A0-A4 B5-B9 Hi-Z Hi-Z A5-A9 A5-A9 Function Disconnect Connect Connect 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 Storage Temperature TSTG -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 SOIC, QSOP Unit
Note: Capacitance guaranteed production tested. total capacitance while switch please Section under "Input Switch Capacitance."
Pins Control Inputs QuickSwitch Channels (Switch OFF)
QUALITY SEMICONDUCTOR, INC.
MDSL-00308-02 NOVEMBER 1998
QS3LR384 ADVANCE INFORMATION Table Electrical Characteristics Over Operating Range
Commercial: -40°C 85°C, 5.0V ±10% 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) VOUT VCC, Switches Min., 0.0V, 30mA Min., 2.4V, 15mA 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-00308-02 NOVEMBER 1998
QUALITY SEMICONDUCTOR, INC.
QS3LR384 ADVANCE INFORMATION Table Power Supply Characteristics Over Operating Range
Commercial: -40°C 85°C, 5.0V ±10% 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, Max., Pins Open, Control Inputs Toggling Duty Cycle Typ(2) 0.25 Unit
Notes: conditions shown Min. Max., appropriate values specified under specifications. Typical values 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 characterization, production tested.
Table Switching Characteristics Over Operating Range
Commercial: -40°C 85°C, 5.0V CLOAD 50pF, RLOAD unless otherwise noted. Symbol tPLH tPHL Description(1) Data Propagation Delay(2,4) Switch Turn-on Delay BEA, Switch Turn-off Delay(2) BEA,
Unit
0.12(3)
tPZL tPZH tPLZ tPHZ
Notes: Test Circuit Waveforms. Minimums guaranteed production tested. This parameter guaranteed production tested. time constant switch alone order 0.12ns QS3LR384 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-00308-02 NOVEMBER 1998
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