FSUSB31L8X

FSUSB31 Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch January 2007 FSUSB31 Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch Features ■ Low On capacitance, 3.7pF (typical) ■ Low On resistance, 6.5Ω (typical) ■ Low power consumption (1µA maximum) Description The FSUSB31 is a low-power, single-port, high-speed USB 2.0 switch. This part is configured as a single 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. 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 ultra-portable applications such as cell phones, allowing for 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. ■ ■ ■ ■ – 10µA maximum ICCT over and expanded control voltage range (VIN = 2.6V, VCC = 4.3V) Wide -3dB bandwidth, > 720MHz 8K I/O to GND ESD protection Power OFF protection when VCC = 0V, D+ / D- pins can tolerate up to 4.3V Packaged in: – Pb-Free 8-lead MicroPak™ (1.6 x 1.6mm) – Pb-Free 8-lead US8 Applications ■ Cell phone, PDA, Digital Camera, and Notebook ■ LCD Monitor, TV, and Set-Top Box Related Application Notes ■ AN-6022 Using the FSUSB30/31 to Comply with USB 2.0 Fault Condition Requirements Ordering Information Part Number FSUSB31K8X Package MAB08A Pb-Free Yes Package Description 8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide 8-Lead MicroPak, 1.6mm Wide FSUSB31L8X MAC08A Yes Pb-Free package per JEDEC J-STD-020B. Application Diagram VCC FSUSB31 D+ Base Band Processor or FS USB Controller USB Connector D– OE HS USB Controller Figure 1. Typical Application Diagram MicroPak™ is a trademark of Fairchild Semiconductor Corporation. © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.6 www.fairchildsemi.com FSUSB31 Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch Connection Diagrams g HSD– NC D– Analog Symbol HSD+ D+ GND 7 6 5 VCC 8 4 HSD– D– 1 2 3 OE HSD+ D+ OE Control Figure 2. Pin Assignments for MicroPak NC HSD– D– GND VCC OE HSD+ D+ Figure 4. Analog Symbol 1 8 2 3 4 7 6 5 Figure 3. Pin Assignments for US8 Pin Descriptions Pin Name OE D+, D−, HSD+, HSD− NC Description Bus Switch Enable Data Ports No Connect Truth Table OE HIGH LOW Function Disconnect D+, D− = HSD © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.6 www.fairchildsemi.com 2 FSUSB31 Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch Absolute Maximum Ratings 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 VS VIN IIK IOUT TSTG ESD Supply Voltage DC Input Voltage (1) Parameter Minimum -0.5V -0.5V Maximum 4.6 4.6 VCC+0.3 +4.6 50 Unit V V V V mA mA °C kV kV DC Switch Voltage(1) DC Input Diode Current DC Output Current Storage Temperature Human Body Model HSD D+, D− -0.5V -0.5 -50 -65 +150 7.5 8 All Pins I/O to GND 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 VCC VIN TA Supply Voltage Control Input Voltage Switch Input Voltage Parameter (2) Minimum 3.0 0V 0V -40 Maximum 4.3 VCC VCC +85 Unit V V V °C Operating Temperature Notes: 1. The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed. DC switch voltage may never exceed 4.6V. 2. Control input must be held HIGH or LOW and it must not float. © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.6 www.fairchildsemi.com 3 FSUSB31 Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch DC Electrical Characteristics All typical values are at 25°C unless otherwise specified. Symbol VIK VIH VIL IIN IOZ IOFF RON ΔRON Parameter Clamp Diode Voltage Input Voltage HIGH Input Voltage LOW Control Input Leakage OFF State Leakage Power OFF Leakage Current (D+, D–) Switch On Resistance(3) Delta RON(4) Conditions IIN = −18mA VCC (V) 3.0 3.0 to 3.6 4.3 3.0 to 3.6 4.3 TA = −40°C to +85°C Min. 1.3 1.7 0.5 0.7 -1.0 -2.0 -2.0 6.5 0.35 2.0 1.0 10.0 1.0 2.0 2.0 10.0 Typ. Max. -1.2 Unit V V V μA μA μA Ω Ω Ω μA μA VIN = 0V to VCC 0 ≤ HSD ≤ VCC VIN = 0.0V to 4.3V, VCC = 0V VIN = 0.4V, ION = −8mA VIN = 0.4V, ION = −8mA VIN = 0.0V −1.0V, ION = −8mA VIN = 0.0V or VCC, IOUT = 0 VIN = 2.6V, VCC = 4.3V 4.3 4.3 0 3.0 3.0 3.0 4.3 4.3 RON Flatness RON Flatness(3) ICC ICCT Quiescent Supply Current Increase in ICC Current per Control Voltage and VCC Levels 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 tON tOFF tPD tBBM OIRR Xtalk BW Parameter Turn-On Time, OE to Output Turn-Off Time, OE to Output Propagation Delay(4) Break-Before-Make Off Isolation (Non-Adjacent) Non-Adjacent Channel Crosstalk -3dB Bandwidth Conditions VIN = 0.8V, RL = 50Ω, CL = 5pF VIN = 0.8V, RL = 50Ω, CL = 5pF RL = 50Ω, CL = 5pF RL = 50Ω, CL = 5pF, VIN = 0.8V RT = 50Ω, f = 240MHz RT = 50Ω, f = 240MHz RT = 50Ω, CL = 0pF RT = 50Ω, CL = 5pF VCC (V) 3.0 to 3.6 3.0 to 3.6 3.3 3.0 to 3.6 3.0 to 3.6 3.0 to 3.6 3.0 to 3.6 TA = −40°C to +85°C Min. Typ. 15.0 12.0 0.25 2.0 -35.0 -55.0 720 550 6.5 Max. 30.0 25.0 Unit ns ns ns ns dB dB MHz Figure Number Figure 12 Figure 12 Figure 10 Figure 11 Figure 13 Figure 16 Figure 17 Figure 15 © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.6 www.fairchildsemi.com 4 FSUSB31 Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch USB Hi-Speed Related AC Electrical Characteristics Symbol Parameter Channel-to-Channel Skew(5) Skew of Opposite Transitions of the Same Output(5) Total Jitter(5) Conditions VCC (V) 3.0 to 3.6 3.0 to 3.6 TA = −40°C to +85°C Min. Typ. 50.0 20.0 Unit Max. ps ps Figure Number Figure 10 Figure 14 Figure 10 Figure 14 tSK(O) tSK(P) CL = 5pF CL = 5pF RL = 50Ω, CL = 5pF, tR = tF = 500ps at 480 Mbps (PRBS = 215 − 1) tJ 3.0 to 3.6 200 ps Note: 5. Guaranteed by design. Capacitance Symbol CIN CON COFF Parameter Control Pin Input Capacitance D1n, D2n, Dn On Capacitance D1n, D2n Off Capacitance Conditions VCC = 0V VCC = 3.3, OE = 0V VCC and OE = 3.3 TA = −40°C to +85°C Min. Typ. 1.0 3.7 1.7 Max. Unit pF pF pF Figure Number Figure 19 Figure 18 Figure 19 © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.6 www.fairchildsemi.com 5 FSUSB31 Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch Typical Characteristics 0 -1 Off Isolation (dB) -2 Gain (dB) -3 -4 -5 -6 -7 -8 1 10 100 Frequency (MHz) 1000 10000 CL = 0pF VCC = 3.3V 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 1 10 100 1000 VCC = 3.3V Frequency (MHz) Figure 5. Gain vs. Frequency Figure 6. Off Isolation 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 1 VCC = 3.3V Crosstalk (dB) 10 100 1000 Frequency (MHz) Figure 7. Crosstalk © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.6 www.fairchildsemi.com 6 FSUSB31 Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch Test Diagrams VON FSUSB31 NC Dn VIN GND OE VS = 0 to VCC RON = VON / ION GND ION OE GND VS = 0 or VCC Each switch port is tested separately. IDn(OFF) FSUSB31 HSD A VIN Figure 8. On Resistance Figure 9. Off Leakage FSUSB31 HSD D+, D– VIN GND RS CL* GND VOE GND RL, RS, and CL are functions of the application environment (see AC Electrical tables for specific values). *CL includes test fixture and stray capacitance. VOH Output: D+, D– VOL tPLH tPHL 50% 50% tRISE = 500ps RL VOUT 800mV Input: HSD+, HSD– 400mV 90% 50% 10% 90% 50% tFALL = 500ps 10% Figure 10. AC Test Circuit Load Figure 11. Switch Propagation Delay Waveforms (tPD) tRISE = 2.5ns VCC Input – OE GND 10% 90% VCC/2 90% VCC/2 tFALL = 2.5ns 10% VOH Output – VOUT VOL tON 90% 90% tOFF Figure 12. Turn On / Turn Off Waveform (tON / tOFF) © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.6 www.fairchildsemi.com 7 FSUSB31 Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch Test Diagrams (Continued) VCC VCC VO HSDn D+, D– HSDn RL S Control Input GND VOUT CL* VOUT Control Input VCC 50% 0V tR = tF = 2.5ns (10–90%) 0.9 x VOUT tD *CL includes test fixture and stray capacitance. Figure 13. Break-Before-Make (tBBM) tRISE = 500ps 800mV Input: D+, D– 400mV tRISE = 500ps 800mV nput: HSDn+ HSDn– 400mV 10% 90% 50% 10% 90% 50% 90% 50% 10% tFALL = 500ps tFALL = 500ps VOH Output1: HSD1+ HSD1– VOL 10% 90% 50% 50% 50% tPLH1 tPHL1 VOH Output: D+, D– VOL tPLH TSK(P) = | tPHL – tPLH | Pulse Skew, TSK(P) tPHL 50% 50% VOH Output1: D2+, D2– VOL tPLH2 tPHL2 50% 50% TSK(O) = | tPLH1 – tPLH2 | or | tPHL1 – tPHL2 | Output Skew, TSK(OUT) Figure 14. Switch Skew Tests Network Analyzer FSUSB31 VIN GND VOE GND VOUT GND RS and RT are functions of the application environment (see AC Electrical Tables for specific values). RT GND RS VS GND Figure 15. Bandwidth © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.6 www.fairchildsemi.com 8 FSUSB31 Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch Test Diagrams (Continued) Network Analyzer FSUSB31 VIN RT VOE GND GND GND OFF-Isolation = 20 Log (VOUT / VIN) VOUT RT GND GND RS VS GND Figure 16. Channel Off Isolation NC FSUSB31 Network Analyzer RS VIN GND VS GND RT GND VOE GND GND RS and RT are functions of the application environment (50, 75 or 100Ω). Crosstalk = 20 Log (VOUT / VIN) RT GND VOUT Figure 17. Non-Adjacent Channel-to-Channel Crosstalk Capacitance Meter F = 240MHz Dn FSUSB31 OE VOE = 0 or VCC Capacitance Meter F = 240MHz Dn FSUSB31 OE VOE = 0 or VCC HSDn HSDn Figure 18. Channel On Capacitance Figure 19. Channel Off Capacitance © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.6 www.fairchildsemi.com 9 FSUSB31 Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch Application Guidance: Meeting USB 2.0 Vbus Short Requirements 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. Power-On Protection 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 20. 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. 1.0.6 www.fairchildsemi.com 10 FSUSB31 Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch Tape and Reel Specification Tape Format for MircoPak Package Designator L8X Tape Section Leader (Start End) Carrier Trailer (Hub End) Number Cavities 125 (typ) 5000 75 (typ) Cavity Status Empty Filled Empty Cover Tape Status Sealed Sealed Sealed Tape Dimension Dimensions are in millimeters unless otherwise specified. © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.6 www.fairchildsemi.com 11 FSUSB31 Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch Reel Dimension for MircoPak Dimensions are in inches (millimeters) unless otheriwise specified. Tape Size (8mm) A 7.0 (177.8) B 0.059 (1.50) C 0.512 (13.00) D 0.795 (20.20) N 2.165 (55.00) W1 0.331 + 0.059/−0.000 (8.40 + 1.50/−0.00) W2 0.567 (14.40) W3 W1 + 0.078/−0.039 (W1 + 2.00/−1.00) © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.5 www.fairchildsemi.com 12 FSUSB31 Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch Physical Dimensions Dimensions are in millimeters unless otherwise noted. Figure 21. Pb-Free, 8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.6 www.fairchildsemi.com 13 FSUSB31 Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch Physical Dimensions (Continued) Dimensions are in millimeters unless otherwise noted. Figure 22. Pb-Free, 8-Lead MicroPak, 1.6mm Wide © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.6 www.fairchildsemi.com 14 FSUSB31 Low-Power 1-Port Hi-Speed USB 2.0 (480Mbps) Switch © 2006 Fairchild Semiconductor Corporation FSUSB31 Rev. 1.0.6 15 www.fairchildsemi.com