FSUSB42UMX.pdf
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1、March 2013 2007 Fairchild Semiconductor Corporation FSUSB42 Rev. 1.1.5 FSUSB42 Low-Power, Two-Port, Hi-Speed, USB2.0 (480Mbps) UART Switch FSUSB42 Low-Power, Two-Port, Hi-Speed, USB2.0 (480Mbps) UART Switch Features Low On Capacitance: 3.7pF Typical Low On Resistance: 3.9 Typical Low Power Consumpt
2、ion: 1A Maximum - 15A Maximum ICCT over an Expanded Voltage Range (VIN=1.8V, VCC=4.4V) Wide -3db Bandwidth: 720MHz Packaged in: - 10-Lead UMLP (1.4 x 1.8mm) - 10-Lead MSOP 8kV ESD Rating, 16kV Power/GND ESD Rating Over-Voltage Tolerance (OVT) on all USB Ports Up to 5.25V without External Components
3、Applications Cell phone, PDA, Digital Camera, and Notebook LCD Monitor, TV, and Set-Top Box IMPORTANT NOTE: For additional performance information, please contact . Description The FSUSB42 is a bi-directional, low-power, two-port, Hi-Speed, USB2.0 switch. Configured as a double-pole, double-throw sw
4、itch (DPDT) switch, it is optimized for switching between two Hi-Speed (480Mbps) sources or a Hi-Speed and Full-Speed (12Mbps) source. The FSUSB42 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) exc
5、eeds the bandwidth needed to pass the third harmonic, resulting in signals with minimum edge and phase distortion. Superior channel-to-channel crosstalk also minimizes interference. The FSUSB42 contains special circuitry on the switch I/O pins for applications where the VCC supply is powered-off (VC
6、C=0), which allows the device to withstand an over-voltage condition. This device is designed to minimize current consumption even when the control voltage applied to the SEL pin is lower than the supply voltage (VCC). This feature is especially valuable to ultra-portable applications, such as cell
7、phones, allowing for direct interface with the general- purpose I/Os of the baseband processor. Other applications include switching and connector sharing in portable cell phones, PDAs, digital cameras, printers, and notebook computers. Ordering Information Part Number Top Mark Operating Temperature
8、 Range Package FSUSB42UMX HE -40 to +85C 10-Lead, Quad, Ultrathin Molded Leadless Package (UMLP), 1.4 x 1.8mm FSUSB42MUX FSUSB42 -40 to +85C 10-Lead, Molded Small Outline Package (MSOP) JEDEC MO-187, 3.0mm Wide MicroPak is a trademark of Fairchild Semiconductor Corporation. HSD1+ HSD2+ HSD1- HSD2- D
9、- D+ ControlSel/OE Figure 1. Analog Symbol Mobile:13713906610 E-mail: 2007 Fairchild Semiconductor Corporation FSUSB42 Rev. 1.1.5 2 FSUSB42 Low-Power, Two-Port, Hi-Speed, USB2.0 (480Mbps) UART Switch Pin Assignments Vcc GND 1 85 4 3 2 Sel D+D- HSD2+HSD2- HSD1+/OE 9 10 67 HSD1- 5 4 3 2 1 6 7 8 9 10
10、VCC Sel D+ D- GND /OE HSD1- HSD2- HSD1+ HSD2+ Figure 2. Pin Assignment 10L UMLP (Top Through View) Figure 3. Pin Assignment 10L MSOP (Top Through View) Pin Definitions UMLP Pin# MSOP Pin# Name Description 1 3 D+ USB Data Bus 2 4 D- USB Data Bus 3 5 GND Ground 4 6 HSD1- Multiplexed Source Inputs (UAR
11、T / USB) 5 7 HSD1+ Multiplexed Source Inputs (UART / USB) 6 8 HSD2- Multiplexed Source Inputs (USB Only) 7 9 HSD2+ Multiplexed Source Inputs (USB Only) 8 10 /OE Switch Enable 9 1 VCC Supply Voltage 10 2 Sel Switch Select Truth Table Sel /OE Function X HIGH Disconnect LOW LOW D+, D-=HSD1+, HSD1- HIGH
12、 LOW D+, D-=HSD2+, HSD2- 2007 Fairchild Semiconductor Corporation FSUSB42 Rev. 1.1.5 3 FSUSB42 Low-Power, Two-Port, Hi-Speed, USB2.0 (480Mbps) UART Switch Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above
13、 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 Parameter Min. Max. Unit
14、 VCC Supply Voltage -0.5 5.6 V VCNTRL DC Input Voltage (S, /OE)(1) -0.5 VCC V VSW DC Switch I/O Voltage(1) -0.50 5.25 V IIK DC Input Diode Current -50 mA IOUT DC Output Current 100 mA TSTG Storage Temperature -65 +150 C MSL Moisture Sensitivity Level (JEDEC J-STD-020A) 1 Level ESD Human Body Model,
15、JEDEC: JESD22-A114 All Pins 7 kV I/O to GND 8 Power to GND 16 D+/D- 9 IEC 61000-4-2 System on USB Connector Pins D+ & D- Air Discharge 15 Contact 8 Charged Device Model, JEDEC: JESD22-C101 2 Note: 1. The input and output negative ratings may be exceeded if the input and output diode current ratings
16、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 d
17、esigning to Absolute Maximum Ratings. Symbol Parameter Min. Max. Unit VCC Supply Voltage 3.0 4.4 V VCNTRL(2) Control Input Voltage (S, /OE) 0 VCC V VSW Switch I/O Voltage -0.5 4.5 V TA Operating Temperature -40 +85 C Note: 2. The control input must be held HIGH or LOW and it must not float. 2007 Fai
18、rchild Semiconductor Corporation FSUSB42 Rev. 1.1.5 4 FSUSB42 Low-Power, Two-Port, Hi-Speed, USB2.0 (480Mbps) UART Switch DC Electrical Characteristics All typical value are at TA=25C unless otherwise specified. Symbol Parameter Condition VCC (V) TA=- 40C to +85C Unit Min. Typ. Max. VIK Clamp Diode
19、 Voltage IIN=-18mA 3.0 -1.2 V VIH Input Voltage High 3.0 to 3.6 1.3 V 4.3 1.7 V VIL Input Voltage Low 3.0 to 3.6 0.5 V 4.3 0.7 V IIN Control Input Leakage VSW=0 to VCC 0 to 4.3 -1 1 A IOZ Off State Leakage 0 Dn, HSD1n, HSD2n 3.6V 4.3 -2 2 A IOFF Power-Off Leakage Current (All I/O Ports) VSW=0V to 4.
20、3V, VCC=0V Figure 5 0 -2 2 A RON HS Switch On Resistance(3) VSW=0.4V, ION=-8mA Figure 4, 3.0 3.9 6.5 RON HS Delta RON(4) VSW=0.4V, ION=-8mA 3.0 0.65 ICC Quiescent Supply Current VCNTRL=0 or VCC, IOUT=0 4.3 1 A ICCT Increase in ICC Current per Control Voltage and VCC VCNTRL=2.6V, VCC=4.3V 4.3 10 A VC
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