FSUSB31 Low-Power, Single-Port, High-Speed USB 2.0 (480Mbps) Switch Features Description ■ Low On Capacitance: 3.7pF (Typical) The FSUSB31 is a low-power, single-port, high-speed USB 2.0 switch. This part is configured as a double-pole, single-throw switch and is optimized for switching or isolating a high-speed (480Mbps) source or a high-speed and full-speed (12Mbps) source. The FSUSB31 is compatible with the requirements of USB2.0 and features an extremely low on capacitance (CON) of 3.7pF. The wide bandwidth of this device (>720MHz) exceeds the bandwidth needed to pass the third harmonic, resulting in signals with minimum edge and phase distortion. Superior channel-to-channel crosstalk minimizes interference. ■ Low On Resistance: 6.5Ω (Typical) ■ Low Power Consumption: 1µA (Maximum) ■ ■ ■ ■ – 10µA Maximum ICCT Over an Expanded Control Voltage Range: VIN = 2.6V, VCC = 4.3V Wide -3dB Bandwidth: > 720MHz 8kV I/O to GND ESD Protection Power-off Protection When VCC = 0V, D+ / D- Pins Can Tolerate up to 5.5V Packaged in: – 8-lead MicroPak™ (1.6 x 1.6mm) – 8-lead US8 – 8-lead Ultrathin MLP (1.2 x 1.4mm) Applications ■ Cell Phone, PDA, Digital Camera, and Notebook ■ LCD Monitor, TV, and Set-top Box Related Resources ■ AN-6022 Using the FSUSB30/31 to Comply with USB 2.0 Fault Condition Requirements The FSUSB31 contains special circuitry on the D+ / Dpins that allows the device to withstand an over-voltage condition. This device is also designed to minimize current consumption even when the control voltage applied to the OE pin is lower than the supply voltage (VCC). This feature is especially valuable for mobile applications, such as cell phones, allowing direct interface with the general-purpose I/Os of the baseband processor. Other applications include port isolation and switching in portable cell phones, PDAs, digital cameras, printers, and notebook computers. Ordering Information Part Number FSUSB31K8X Package MAB08A Eco Status Package Description Green 8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide FSUSB31L8X MAC08A RoHS 8-Lead MicroPak, 1.6mm Wide FSUSB31UMX UMLP08A Green 8-Lead, Ultrathin Molded Leadless Package (UMLP), 1.2 x 1.4mm For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. Application Diagram VCC FSUSB31 D+ USB Connector Base Band Processor or FS USB Controller D– OE HS USB Controller Figure 1. Typical Application Diagram MicroPak™ is a trademark of Fairchild Semiconductor Corporation. © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.8 www.fairchildsemi.com FSUSB31 — Low-Power, Single-Port, High-Speed USB 2.0 (480Mbps) Switch September 2008 Pin Descriptions HSD+ D+ HSD– D– Description OE Bus Switch Enable D+, D−, HSD+, HSD− Data Ports NC No Connect Truth Table Control OE Pin Name Figure 2. Analog Symbol OE Function HIGH Disconnect LOW D+, D− = HSD+, HSD- HSD– D– 7 6 5 4 2 GND 3 D+ 1 HSD+ 8 OE VCC NC Connection Diagrams g Figure 3. Pin Assignments for MicroPak 1 8 VCC HSD– 2 7 OE D– 3 6 HSD+ GND 4 5 D+ NC Figure 4. Pin Assignments for US8 Figure 5. Pin Assignments for UMLP © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.8 www.fairchildsemi.com 2 FSUSB31 — Low-Power, Single-Port, High-Speed USB 2.0 (480Mbps) Switch Analog Symbol Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol VCC Parameter Minimum Maximum Unit -0.5 5.5 V -0.5 VCC V HSD -0.5 VCC V D+, D− -0.5 VCC V Supply Voltage (1) VS DC Input Voltage VIN DC Switch Voltage(1) IIK DC Input Diode Current IOUT DC Output Current TSTG Storage Temperature ESD Human Body Model: JESD22-A114 -50 -65 All Pins I/O to GND mA 50 mA +150 °C 7.5 kV 8 kV Note: 1.The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed. Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings. Symbol Parameter Minimum Maximum Unit VCC Supply Voltage 3.0 4.3 V VIN Control Input Voltage(2) 0 VCC V Switch Input Voltage 0 VCC V -40 +85 °C TA Operating Temperature Note: 2. Control input must be held HIGH or LOW and it must not float. © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.8 www.fairchildsemi.com 3 FSUSB31 — Low-Power, Single-Port, High-Speed USB 2.0 (480Mbps) Switch Absolute Maximum Ratings All typical values are at 25°C unless otherwise specified. Symbol Parameter VIK Clamp Diode Voltage VIH Input Voltage HIGH VIL Input Voltage LOW VCC (V) Conditions IIN = −18mA TA = −40°C to +85°C Min. Typ. 3.0 Unit Max. -1.2 3.0 to 3.6 1.3 4.3 1.7 V V 3.0 to 3.6 0.5 4.3 0.7 V IIN Control Input Leakage VIN = 0V to VCC 4.3 -1.0 1.0 μA IOZ OFF State Leakage 0 ≤ HSD ≤ VCC 4.3 -2.0 2.0 μA IOFF Power OFF Leakage Current (D+, D–) VIN = 0.0V to 4.3V, VCC = 0V 0 -2.0 2.0 μA RON Switch On Resistance(3) VIN = 0.4V, ION = −8mA VIN = 0.4V, ION = −8mA 10.0 Ω ΔRON Delta RON (4) RON Flatness RON Flatness(3) 3.0 6.5 3.0 0.35 Ω VIN = 0.0V −1.0V, ION = −8mA 3.0 2.0 Ω ICC Quiescent Supply Current VIN = 0.0V or VCC, IOUT = 0 4.3 1.0 μA ICCT Increase in ICC Current per Control Voltage and VCC Levels VIN = 2.6V, VCC = 4.3V 4.3 10.0 μA Notes: 3. Measured by the voltage drop between Dn, HSD, and Dn pins at the indicated current through the switch. On resistance is determined by the lower of the voltage on the two ports. 4. Guaranteed by characterization. AC Electrical Characteristics All typical values are for VCC = 3.3V are at 25°C unless otherwise specified. Symbol Parameter VCC (V) Conditions TA = −40°C to +85°C Figure Number Typ. Max. 3.0 to 3.6 15.0 30.0 ns Figure 13 3.0 to 3.6 12.0 25.0 ns Figure 13 RL = 50Ω, CL = 5pF 3.3 0.25 ns Figure 11 Figure 12 Break-Before-Make RL = 50Ω, CL = 5pF, VIN = 0.8V 3.0 to 3.6 ns Figure 14 OIRR Off Isolation (Non-Adjacent) RT = 50Ω, f = 240MHz 3.0 to 3.6 -35.0 dB Figure 17 Xtalk Non-Adjacent Channel Crosstalk RT = 50Ω, f = 240MHz 3.0 to 3.6 -55.0 dB Figure 18 MHz Figure 16 tON Turn-On Time, OE to Output VIN = 0.8V, RL = 50Ω, CL = 5pF tOFF Turn-Off Time, OE to Output VIN = 0.8V, RL = 50Ω, CL = 5pF tPD Propagation Delay(5) tBBM BW -3dB Bandwidth RT = 50Ω, CL = 0pF 3.0 to 3.6 RT = 50Ω, CL = 5pF Min. Unit 2.0 6.5 720 550 Note: 5. Guaranteed by characterization. © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.8 www.fairchildsemi.com 4 FSUSB31 — Low-Power, Single-Port, High-Speed USB 2.0 (480Mbps) Switch DC Electrical Characteristics Symbol Parameter TA = −40°C to +85°C VCC (V) Conditions Min. Typ. Unit Figure Number Max. tSK(O) Channel-to-Channel Skew(6) CL = 5pF 3.0 to 3.6 50.0 ps Figure 11 Figure 15 tSK(P) Skew of Opposite Transitions of the Same Output(6) CL = 5pF 3.0 to 3.6 20.0 ps Figure 11 Figure 15 Total Jitter(6) RL = 50Ω, CL = 5pF, tR = tF = 500ps at 480 Mbps (PRBS = 215 − 1) 3.0 to 3.6 200 ps tJ Note: 6. Guaranteed by design. Capacitance Symbol Parameter Conditions Min. Typ. 1.0 Max. Unit Figure Number pF Figure 20 CIN Control Pin Input Capacitance CON On Capacitance VCC = 3.3V, OE = 0V 3.7 pF Figure 19 COFF Off Capacitance VCC and OE = 3.3V 1.7 pF Figure 20 © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.8 VCC = 0V TA = −40°C to +85°C www.fairchildsemi.com 5 FSUSB31 — Low-Power, Single-Port, High-Speed USB 2.0 (480Mbps) Switch USB Hi-Speed Related AC Electrical Characteristics 0 0 -1 -10 Off Isolation (dB) Gain (dB) -2 VCC = 3.3V -20 CL = 0pF VCC = 3.3V -3 -4 -5 -6 -30 -40 -50 -60 -70 -80 -7 -90 -8 -100 1 10 100 1000 10000 1 10 Frequency (MHz) Figure 6. Gain vs. Frequency Crosstalk (dB) 100 1000 Frequency (MHz) 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 Figure 7. Off Isolation VCC = 3.3V 1 10 100 1000 Frequency (MHz) Figure 8. Crosstalk © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.8 www.fairchildsemi.com 6 FSUSB31 — Low-Power, Single-Port, High-Speed USB 2.0 (480Mbps) Switch Typical Characteristics VON FSUSB31 FSUSB31 IDn(OFF) NC HSD Dn A VIN VIN ION OE OE GND GND GND VS = 0 to VCC VS = 0 or VCC RON = VON / ION Each switch port is tested separately. Figure 9. On Resistance Figure 10. Off Leakage FSUSB31 D+, D– VIN 800mV Input: HSD+, HSD– 400mV RL VOUT CL* RS GND tFALL = 500ps tRISE = 500ps HSD GND 90% 90% 50% 50% 10% 10% VOE VOH GND Output: D+, D– RL, RS, and CL are functions of the application environment (see AC Electrical tables for specific values). 50% tPLH *CL includes test fixture and stray capacitance. Figure 11. AC Test Circuit Load tPHL Figure 12. Switch Propagation Delay Waveforms (tPD) tFALL = 2.5ns tRISE = 2.5ns VCC 90% Input – OE VCC/2 GND 50% VOL 90% VCC/2 10% 10% VOH 90% 90% Output – VOUT VOL tON tOFF Figure 13. Turn On / Turn Off Waveform (tON / tOFF) © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.8 www.fairchildsemi.com 7 FSUSB31 — Low-Power, Single-Port, High-Speed USB 2.0 (480Mbps) Switch Test Diagrams VCC VCC HSDn VO VOUT D+, D– RL VCC Control Input HSDn CL* 50% 0V tR = tF = 2.5ns (10–90%) S Control Input VOUT GND 0.9 x VOUT tD *CL includes test fixture and stray capacitance. Figure 14. Break-Before-Make (tBBM) tFALL = 500ps tRISE = 500ps 800mV 90% Input: D+, D– 50% 10% 400mV 10% tFALL = 500ps tRISE = 500ps 800mV 90% nput: HSDn+ HSDn– 50% VOH Output1: HSD1+ HSD1– 90% 50% 10% 400mV 90% 50% 50% 50% VOL 10% tPLH1 tPHL1 50% 50% VOH VOH 50% Output: D+, D– 50% Output1: D2+, D2– VOL VOL tPLH tPHL tPLH2 TSK(P) = | tPHL – tPLH | Pulse Skew, TSK(P) tPHL2 TSK(O) = | tPLH1 – tPLH2 | or | tPHL1 – tPHL2 | Output Skew, TSK(OUT) Figure 15. Switch Skew Tests Network Analyzer FSUSB31 RS VIN VS GND GND VOE GND VOUT GND RS and RT are functions of the application environment (see AC Electrical Tables for specific values). RT GND Figure 16. Bandwidth © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.8 www.fairchildsemi.com 8 FSUSB31 — Low-Power, Single-Port, High-Speed USB 2.0 (480Mbps) Switch Test Diagrams (Continued) FSUSB31 — Low-Power, Single-Port, High-Speed USB 2.0 (480Mbps) Switch Test Diagrams (Continued) Network Analyzer FSUSB31 RS VIN VS GND RT VOE GND GND GND VOUT GND OFF-Isolation = 20 Log (VOUT / VIN) RT GND Figure 17. Channel Off Isolation NC Network Analyzer FSUSB31 RS VIN VS GND VOE GND RT GND GND RT GND RS and RT are functions of the application environment (50, 75 or 100Ω). VOUT GND Crosstalk = 20 Log (VOUT / VIN) Figure 18. Non-Adjacent Channel-to-Channel Crosstalk Capacitance Meter Dn FSUSB31 Dn FSUSB31 OE OE Capacitance Meter VOE = 0 or VCC F = 240MHz F = 240MHz HSDn Figure 19. Channel On Capacitance © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.8 VOE = 0 or VCC HSDn Figure 20. Channel Off Capacitance www.fairchildsemi.com 9 Power-On Protection In section 7.1.1 of the USB 2.0 specification, it notes that USB devices must be able to withstand a Vbus short to D+ or D- when the USB devices is either powered off or powered on. The FSUSB31 can be successfully configured to meet both these requirements. The USB 2.0 specification also notes that the USB device should be capable of withstanding a Vbus short during transmission of data. Fairchild recommends adding a 100Ω series resister between the switch VCC pin and supply rail to protect against this case. This modification works by limiting current flow back into the VCC rail during the over-voltage event so current remains within the safe operating range. In this application, the switch passes the full 5.25V input signal through to the selected output, while maintaining specified off isolation on the un-selected pins. Power-Off Protection For a Vbus short circuit, the switch is expected to withstand such a condition for at least 24 hours. The FSUSB31 has specially designed circuitry which prevents unintended signal bleed through as well as guaranteed system reliability during a power-down, overvoltage condition. The protection has been added to the common pins (D+, D-). VCC= 3.6 V 100 Ohms HSD+ HSD- D+ = 5.25V FSUSB31 D- = 5.25V Figure 21. A 100Ω resistor in series with the VCC supply allows the FSUSB31 to withstand a Vbus short when powered up For more information, see Applications Note AN-6022 — Using the FSUSB30/FSUSB31 to Comply with USB 2.0 Fault Condition Requirements at www.fairchildsemi.com. © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.8 www.fairchildsemi.com 10 FSUSB31 — Low-Power, Single-Port, High-Speed USB 2.0 (480Mbps) Switch Application Guidance: Meeting USB 2.0 Vbus Short Requirements FSUSB31 — Low-Power, Single-Port, High-Speed USB 2.0 (480Mbps) Switch Physical Dimensions Figure 22. 8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide For MicroPak™ tape and reel specifications, please visit Fairchild’s website: http://www.fairchildsemi.com/ms/MS/MS-522.pdf. Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.8 www.fairchildsemi.com 11 0.10 2X (Continued) C A 1.6 B 1.6 INDEX AREA 0.10 2X C TOP VIEW 0.55 MAX 0.05 0.05 0.00 DETAIL A 8X(0.09) 8X 0.05 C Recommended Landpattern C (0.20) 1.0 2 1 4 (0.1) C 8 4 7 0.35 0.25 3X(0.2) 0.35 0.25 0.5 3 6 5 (0.15) 0.35 0.25 0.15 8X 0.25 0.10 0.05 C A B C DETAIL A PIN #1 TERMINAL SCALE: 2X BOTTOM VIEW Notes: 1. PACKAGE CONFORMS TO JEDEC MO-255 VARIATION UAAD 2. DIMENSIONS ARE IN MILLIMETERS 3. DRAWING CONFORMS TO ASME Y.14M-1994 4. PIN 1 FLAG, END OF PACKAGE OFFSET 5. DRAWING FILE NAME: MKT-MAC08AREV4 MAC08AREV4 Figure 23. 8-Lead MicroPak, 1.6mm Wide For MicroPak™ tape and reel specifications, please visit Fairchild’s website: http://www.fairchildsemi.com/products/logic/pdf/micropak_tr.pdf. Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.8 www.fairchildsemi.com 12 FSUSB31 — Low-Power, Single-Port, High-Speed USB 2.0 (480Mbps) Switch Physical Dimensions 2X (Continued) 0.10 C 1.450 0.725 1.4 B A 0.400 0.450 1.20 1.250 0.350 7X 0.10 2X 0.625 C 0.250 8X TOP VIEW 0.55 MAX 0.05 C 0.05 C SEATING PLANE 0.025 0.00 C 0.40 2 DETAIL A 0.35 7X 0.25 4 0.10 PIN#1 IDENT 0.30 5 1 8 6 (0.2) 0.15 8X 0.25 0.10 0.05 45° 0.20 0.10 C A B C BOTTOM VIEW DETAIL: A SCALE : 2x NOTES: A. DOES NOT CONFORMS TO JEDEC STANDARD. B. DIMENSIONS ARE IN MILLIMETERS. C. DIMENSIONS AND TOLERANCES CONFORMS TO ASME Y14.5M, 1994. D. DRAWING FILE NAME : UMLP08Arev1 Figure 24. 8-Lead, Ultrathin Molded Leadless Package (UMLP), 1.2 x 1.4mm For MicroPak™ tape and reel specifications, please visit Fairchild’s website: http://www.fairchildsemi.com/products/logic/pdf/micropak_tr.pdf. Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.8 www.fairchildsemi.com 13 FSUSB31 — Low-Power, Single-Port, High-Speed USB 2.0 (480Mbps) Switch Physical Dimensions FSUSB31 — Low-Power, Single-Port, High-Speed USB 2.0 (480Mbps) Switch © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.8 14 www.fairchildsemi.com