QS3VH16800PAG

IDTQS3VH16800 2.5V / 3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH WITH PRECHARGED OUTPUTS INDUSTRIAL TEMPERATURE RANGE QUICKSWITCH® PRODUCTS 2.5V / 3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH WITH PRECHARGED OUTPUTS IDTQS3VH16800 DESCRIPTION: 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 • B port precharged to user-selectable VBIAS Ω typical • Low RON - 4Ω • 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 TSSOP package The QS3VH16800 HotSwitch is a 20-bit high bandwidth bus switch. The QS3VH16800 has very low ON resistance, resulting in under 250ps propagation delay through the switch. The QS3VH16800 precharges the B port to a user selectable bias voltage (VBIAS) to minimize live insertion noise. The switches can be turned ON under the control of the LVTTL-compatible Output Enable signal for bidirectional data flow with no added delay or ground bounce. It can be used as two 10-bit bus switches or one 20-bit bus switch. In the OFF and ON states, the switches are 5V-tolerant. 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 QS3VH16800 ideal for high performance communications applications. The QS3VH16800 is characterized for operation from -40°C to +85°C. APPLICATIONS: • • • • • Hot-swapping 10/100 Base-T, Ethernet LAN switch Low distortion analog switch Replaces mechanical relay ATM 25/155 switching FUNCTIONAL BLOCK DIAGRAM V BIAS V BIAS A0 B0 A 10 B 10 A9 B9 A 19 B 19 OE1 OE2 The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE c 2013 Integrated Device Technology, Inc. JUNE 2013 1 DSC-5961/9 IDTQS3VH16800 2.5V / 3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH WITH PRECHARGED OUTPUTS INDUSTRIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION Symbol Description Max Unit VTERM(2) SupplyVoltage to Ground –0.5 to +4.6 V VTERM(3) DC Switch Voltage VS –0.5 to +5.5 V VTERM(3) DC Input Voltage VIN –0.5 to +5.5 V VBIAS 1 48 OE1 VAC AC Input Voltage (pulse width ≤20ns) –3 V A0 2 47 OE2 IOUT DC Output Current (max. sink current/pin) 120 mA A1 3 46 B0 TSTG Storage Temperature –65 to +150 °C A2 4 45 B1 A3 5 44 B2 A4 6 43 B3 A5 7 42 B4 GND 8 41 GND A6 9 40 B5 A7 10 39 B6 A8 11 38 B7 A9 12 37 B8 A10 13 36 B9 A11 14 35 B10 VCC 15 34 B11 A12 16 33 GND 17 32 B12 GND A13 18 31 B13 OEx I Bus Switch Enable VBIAS I Bias Voltage Ax I/O Bus A Bx I/O Bus B A14 19 30 B14 A15 20 29 B15 A16 21 28 B16 A17 22 27 B17 A18 23 26 B18 A19 24 25 B19 NOTES: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. VCC terminals. 3. All terminals except VCC . CAPACITANCE (TA = +25°C, F = 1MHz, VIN = 0V, VOUT = 0V) Parameter(1) Symbol CIN Control Inputs CI/O Quickswitch Channels (Switch OFF) Typ. Max. Unit 3 5 pF 4 6 pF 8 12 pF VBIAS = OPEN CI/O Quickswitch Channels (Switch ON) NOTE: 1. This parameter is guaranteed but not production tested. PIN DESCRIPTION Pin Names I/O Description FUNCTION TABLE (EACH 10-BIT BUS SWITCH)(1) OEx Bx Function L Ax Connect H VBIAS NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level Z = High-Impedence TSSOP TOP VIEW 2 Disconnect Ax = Z IDTQS3VH16800 2.5V / 3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH WITH PRECHARGED OUTPUTS INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Industrial: TA = –40°C to +85°C, VCC = 3.3V ±0.3V Symbol VIH VIL Parameter Test Conditions Input HIGH Voltage Input LOW Voltage Min. Typ.(1) Max. Unit V Guaranteed Logic HIGH VCC = 2.3V to 2.7V 1.7 — — for Control Inputs VCC = 2.7V to 3.6V 2 — — Guaranteed Logic LOW VCC = 2.3V to 2.7V — — 0.7 for Control Inputs VCC = 2.7V to 3.6V — — 0.8 0 — 5 0 — 3.3 0.25 — — mA VBIAS Bias Voltage | IO | Bias Current(2) VCC = 3.3V, VBIAS = 2.4V, VO = 0, OEx = HIGH VCC = 3.3V to 3.6V, IO = 0 VCC = 2.3V to 2.7V, IO = 0 V V IIN Input Leakage Current (Control Inputs) 0V ≤ VIN ≤ VCC — — ±1 μA IOZ Off-State Current (Hi-Z) 0V ≤ VOUT ≤ 5V, Switches OFF — — ±1 μA I OFF Data Input/Output Power Off Leakage VIN or VOUT 0V to 5V, VCC = 0V — — ±1 μA VCC = 2.3V VIN = 0V ION = 30mA — 6 8 RON Switch ON Resistance Typ. at VCC = 2.5V VIN = 1.7V ION = 15mA — 7 9 VCC = 3V VIN = 0V ION = 30mA — 4 6 VIN = 2.4V ION = 15mA — 5 8 NOTES: 1. Typical values are at VCC = 3.3V and TA = 25°C. 2. Bias resistance is 5KΩ typical at VCC = 3.3V; VBIAS = 2.4V at 25°C. TYPICAL ON RESISTANCE vs VIN AT VCC = 3.3V 16 14 R ON (ohms) 12 10 8 6 4 2 0 0.0 0.5 1.0 1.5 2.0 2.5 V IN (Volts) 3 3.0 3.5 4.0 4.5 5.0 Ω IDTQS3VH16800 2.5V / 3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH WITH PRECHARGED OUTPUTS INDUSTRIAL TEMPERATURE RANGE POWER SUPPLY CHARACTERISTICS Parameter Test Conditions(1) ICCQ Quiescent Power Supply Current VCC = Max., VIN = GND or VCC, f = 0 ΔICC Power Supply Current ICCD Dynamic Power Supply Current(4) Symbol (2,3) per Input HIGH VCC = Max., VIN = 3V, f = 0 per Control Input VCC = 3.3V, A and B Pins Open, Control Inputs Min. Typ. Max. Unit — 1.5 3 mA — — 30 μA See Typical ICCD vs Enable Frequency graph below Toggling @ 50% Duty Cycle NOTES: 1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics. 2. Per input driven at the specified level. A and B pins do not contribute to ΔIcc. 3. This parameter is guaranteed but not tested. 4. This parameter represents the current required to switch internal capacitance at the specified frequency. The A and B inputs do not contribute to the Dynamic Power Supply Current. This parameter is guaranteed but not production tested. TYPICAL ICCD vs ENABLE FREQUENCY CURVE AT VCC = 3.3V 20 18 16 ICCD (mA) 14 12 10 8 6 4 2 0 0 2 4 6 8 10 12 ENABLE FREQUENCY (MHz) 4 14 16 18 20 IDTQS3VH16800 2.5V / 3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH WITH PRECHARGED OUTPUTS INDUSTRIAL TEMPERATURE RANGE SWITCHING CHARACTERISTICS OVER OPERATING RANGE TA = -40°C to +85°C VCC = 2.5 ± 0.2V (1) Symbol tPLH tPHL Parameter Data Propagation Delay(2,3) Ax to Bx or Bx to Ax Test Conditions tPZL Switch Turn-On Delay VBIAS = 3V tPZH OEx to Ax/Bx VBIAS = GND tPLZ Switch Turn-Off Delay VBIAS = 3V tPHZ OEx to Ax/Bx VBIAS = GND fOEx Operating Frequency - Enable(2,5) VBIAS = OPEN VCC = 3.3 ± 0.3V (1) Min. (4) ⎯ Max. 0.2 Min. (4) ⎯ Max. 0.2 Unit ns 1.5 8.5 1.5 8 ns 1.5 7.5 1.5 7.5 ns ⎯ 10 ⎯ 20 MHz (OEx) 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 OEx control input (pass voltage > VCC, VIN = 5V, RLOAD > 1MΩ, no CLOAD). 5 IDTQS3VH16800 2.5V / 3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH WITH PRECHARGED OUTPUTS INDUSTRIAL TEMPERATURE RANGE SOME APPLICATIONS FOR HOTSWITCH PRODUCTS NFET 0 to +5V Vcc = 3.3V +6.5V CHARGE PUMP OE 0 to +5V DRIVER SINGLE HOT SWITCH Rail-to-Rail Switching PHY 3VH SWITCH 4.5VPP 10Mbps to 100Mbps Z = 100 Ω LOGIC SIDE Z = 100 Ω >100m 4.5VPP TWISTED PAIR LOGIC SIDE 2VPP Fast Ethernet Data Switching (LAN Switch) ZERO DOWN TIME SYSTEM PLUGGABLE CARD/ LIVE SYSTEM CARD I/O ON CARD LOGIC CONNECTOR QS3VHXXX CPU CARD I/O ON CARD LOGIC CONNECTOR QS3VHXXX RAM BUS Hot Swapping 6 IDTQS3VH16800 2.5V / 3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH WITH PRECHARGED OUTPUTS INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS TEST CONDITIONS Symbol VCC = 3.3V ± 0.3V VCC = 2.5V ± 0.2V Unit VLOAD 6 2 x Vcc V VIH 3 Vcc V (1) (2) VT 1.5 VCC/2 V VLZ 300 150 mV VHZ 300 150 mV CL 50 30 pF SAME PHASE INPUT TRANSITION tPLH tPHL tPLH tPHL OUTPUT VIH VT 0V VOH VT VOL VIH VT 0V OPPOSITE PHASE INPUT TRANSITION Propagation Delay VLOAD VCC 500Ω Pulse(1, 2) Generator VIN CONTROL INPUT GND tPZL VOUT D.U.T. RT DISABLE ENABLE Open OUTPUT SWITCH NORMALLY CLOSED LOW tPZH OUTPUT SWITCH NORMALLY OPEN HIGH 500Ω CL tPLZ VLOAD/2 VT tPHZ VT 0V Test Circuits for All Outputs VIH VT 0V VLOAD/2 VOL + VLZ VOL VOH VOH -VHZ 0V NOTE: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. Enable and Disable Times DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. NOTES: 1. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2.5ns; tR ≤ 2.5ns. 2. Pulse Generator for All Pulses: Rate ≤ 10MHz; tF ≤ 2ns; tR ≤ 2ns. SWITCH POSITION Test Switch tPLZ/tPZL VLOAD tPHZ/tPZH GND tPD Open 7 IDTQS3VH16800 2.5V / 3.3V 20-BIT HIGH BANDWIDTH BUS SWITCH WITH PRECHARGED OUTPUTS INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION QS XXXXX XX Package Device Type X Blank 8 Tube or Tray Tape and Reel PAG Thin Shrink Small Outline Package-TSSOP Green 3VH16800 2.5V/3.3V 20-Bit High Bandwidth Bus Switch with Precharged Outputs Datasheet Document History 06/10/2013 Pg. 1, 8 Updated the Ordering Information by removing non green package version, the “IDT” notation and Adding Tape and Reel information. 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