FSUSB20 Low-Power 1-Port High-Speed USB (480Mbps) Switch

Size: px

Start display at page:

Download "FSUSB20 Low-Power 1-Port High-Speed USB (480Mbps) Switch"

Gabriella Bridges
5 years ago
Views:

1 FSUSB20 Low-Power 1-Port High-Speed USB (480Mbps) Switch Features 30dB off isolation at 250MHz 30dB non-adjacent channel crosstalk at 250MHz 4.5Ω typical on resistance (R ON ) 3dB bandwidth: >720MHz Low power consumption (1µA max) Control input: LVTTL compatible Bi-directional operation USB high-speed and full-speed signaling capability Space-saving Pb-free packaging Applications Cell phone, PDA, digital camera, and notebook General Description September 2006 FSUSB20 is a low-power high-bandwidth switch specially designed for switching high-speed USB 2.0 signals in handset and consumer applications, such as cell phones, digital cameras, and notebooks with hubs or controllers with limited USB I/Os. The wide bandwidth (>720MHz) of this switch allows signals to pass with minimum edge and phase distortion. Superior channel-tochannel crosstalk results in minimal interference. It is compatible with the high-speed USB 2.0 standard. Ordering Information Order Number Package Number Pb- Free Top Mark Package Description FSUSB20L10X MAC010A Yes EY 10-Lead MicroPak, 1.6 x 2.1mm FSUSB20BQX MLP014A Yes USB20 14-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 3.0mm FSUSB20MUX MUA10A Yes FSUSB20 10-Lead Molded Small Outline Package (MSOP), JEDEC MO- 187, 3.0mm Wide Pb-Free package per JEDEC J-STD-020B. MicroPak is a trademark of Fairchild Semiconductor Corporation. FSUSB20 Rev

2 Connection Diagrams Pad Assignments for MicroPak OE 2B1 2B2 2A V CC 10 5 GND S 1B1 1B2 1A (Top View) Pad Assignments for DQFN NC V CC 1 14 S 2 13 OE 1B B 1 NC 4 11 NC 1B B 2 1A 6 9 2A 7 8 GND NC (Top Through View) Analog Symbol Truth Table Pin Descriptions 1B 1 1A 1B 2 2B 1 2A 2B 2 S Control OE S OE Function X High Disconnect Low Low A = B 1 High Low A = B 2 Pin Name Description OE Bus Switch Enable S Select Input A Bus A B 1 B 2 Bus B Pin Assignment for MSOP S 1 10 V CC 1B OE 1B B 1 1A 4 7 2B 2 GND 5 6 2A (Top Through View) FSUSB20 Rev

3 Absolute Maximum Ratings The Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The Recommended Operating Conditions table will define the conditions for actual device operation. Symbol Parameter Min. Max. Unit V CC Supply Voltage V V S DC Switch Voltage 0.5V V CC V V IN DC Input Voltage (1) l IK DC Input Diode Current V IN < 0V 50 ma I OUT DC Output Sink Current 50 ma I CC /I GND DC V CC /GND Current ±100 ma T STG Storage Temperature Range C ESD Human Body Model Notes: 1. The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed. Recommended Operating Conditions (2) Notes: 2. Unused control inputs must be held HIGH or LOW. They may not float. All Pins 7000 I/O to GND 7000 Symbol Parameter Min. Max. Unit V CC Power Supply Operating V V IN Input Voltage 0 V CC V V OUT Output Voltage 0 V CC V Switch Control Input 0 5 t r,t f Input Rise and Fall Time ns/v Switch I/O 0 DC T A Free Air Operating Temperature C V FSUSB20 Rev

4 DC Electrical Characteristics Typical values are at V CC = 3.0V and T A = +25 C. Symbol Parameter Conditions V CC (V) Notes: 3. Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the voltages on the two (A or B) pins. 4. Flatness is defined as the difference between the maximum and minimum value on resistance over the specified range of conditions. AC Electrical Characteristics Typical values are at V CC = 3.3V and T A = +25 C. T A = 40 C to +85 C Min. Typ. Max. V IK Clamp Diode Voltage I IN = 18mA V V IH HIGH Level Input Voltage 3.0 to 2.0 V 3.6 V IL LOW Level Input Voltage 3.0 to 0.8 V 3.6 I I Input Leakage Current 0 V IN 3.6V 3.6 ±1.0 μa I OFF OFF-STATE Leakage Current 0 A, B V CC 3.6 ±1.0 μa R ON Switch On Resistance (3) V IN = 0.8V, I ON = 8mA Ω V IN = 3.0V, I ON = 8mA Ω ΔR ON Delta R ON V IN = 0.8V, V IN = 0V 1.5V, Ω I ON = 8mA R FLAT(ON) On Resistance Flatness (4) I OUT = 8mA Ω I CC Quiescent Supply Current V IN = V CC or GND, I OUT = μa Symbol Parameter Conditions V CC (V) t ON t OFF Turn ON Time S-to-Bus B Turn OFF Time S-to-Bus B T A = 40 C to +85 C Min. Typ. Max. Units Units Figure Number V B = 0.8V 3.0 to ns Figure 5 Figure 6 V B = 0.8V 3.0 to ns Figure 5 Figure 6 t PD Propagation Delay C L = 10pF 3.0 to ns Figure 10 O IRR Non-Adjacent f = 250MHz, 3.0 to db Figure 7 OFF-Isolation R L = 50Ω X TALK Non-Adjacent Channel Crosstalk f = 250MHz, R L = 50Ω, 3.0 to db Figure 8 BW 3dB Bandwidth R L = 50Ω, C L = 0pF 3.0 to MHz Figure 9 R L = 50Ω, C L = 5pF 435 FSUSB20 Rev

5 USB Related AC Electrical Characteristics Typical values are at V CC = 3.3V and T A = +25 C. Symbol Parameter Conditions V CC (V) t SK(O) t SK(P) Capacitance Channel-to-Channel Skew Skew of Opposite Transition of the Same Output T J Total Jitter R L = 50Ω, C L = 10pF t R = t F = 750ps at 480Mbps Typical values are at V CC = 3.3V and T A = +25 C. T A = 40 C to +85 C Min. Typ. Max. Units Figure Number C L = 10pF 3.0 to ns Figure 10 Figure 11 C L = 10pF 3.0 to ns Figure 10 Figure 11 Symbol Parameter Conditions 3.0 to ns T A = 40 C to +85 C C IN Control Pin Input Capacitance V CC = 0V 2.5 pf C ON A/B ON Capacitance V CC = 3.3V, OE = 0V 12.0 pf C OFF Port B OFF Capacitance V CC and OE = 3.3V 4.0 pf Typ. Units FSUSB20 Rev

6 Typical Characteristics Off Isolation (db) Gain (db) Frequency Response Frequency (MHz) C L = 0pF, V CC = 3.3V Figure 1. Gain vs. Frequency Frequency Response Frequency (MHz) V BIAS = 0.5V, V CC = 3.3V Figure 2. OFF Isolation FSUSB20 Rev

7 Typical Characteristics (Continued) Crosstalk (db) Frequency Response Frequency (MHz) R ON (Ohms) V BIAS = 0.5V, V CC = 3.3V Figure 3. Crosstalk -40 C V B2 = mV R ON = 3.561Ω -85 C V B2 = mV R ON = 5.402Ω -25 C V B2 = mV R ON = 4.437Ω V B2 (V) Figure 4. R ON FSUSB20 Rev

8 AC Loading and Waveforms GND nb 1 nb 2 + V B Control GND B 1 50Ω SOE 50Ω A 50Ω A 10 pf SELECT INPUT Note: Input driven by 50Ω source terminated in 50Ω Note: C L includes load and stray capacitance Note: Input PRR = 1.0 MHz, t W = 500ns Figure 5. AC Test Circuit 90% 90% 10% 10% t ON OUTPUT 1.5V 90% 90% Figure 6. AC Waveforms Network Analyzer t r = 2.5ns 1.5V B 1 100Ω t f = 2.5ns 3.0V t OFF GND V OH V OL A 100Ω B 2 S Control S Control 50Ω Network Analyzer OE OE Figure 7. OFF Isolation Test Figure 8. Crosstalk Test B A 50Ω Network Analyzer GND S Control OE Figure 9. Bandwidth Test FSUSB20 Rev

9 AC Loading and Waveforms (Continued) Input 400 mv Input Output Output t PLH 50% t PLH Figure 10. Propagation Delay 50% t SK(P) = t PHL - t PHL t PHL Figure 11. Pulse Skew t SK(P) 800 mv t PHL V OH V OL 800 mv 50% 400 mv 0 V OH 50% V OL 800 mv Input 50% 50% 400 mv t PLH1 t PHL1 0 50% 50% Output 1 t SK(O) t SK(O) 50% 50% Output 2 t PLH2 t PHL2 t SK(O) = t PLH1 - t PLH2 or t PHL1 - t PHL2 Figure 12. Output Skew t SK(O) FSUSB20 Rev

10 Tape and Reel Specifications Tape Format for MicroPak Dimensions are in millimeters unless otherwise noted. Package Designator Tape Dimension Tape Section Dimensions are in millimeters unless otherwise noted. Number Cavities Cavity Status Cover Tape Status L10X Leader (Start End) 125 (typ) Empty Sealed Carrier 5000 Filled Sealed Trailer (Hub End) 75 (typ) Empty Sealed FSUSB20 Rev

11 Reel Dimension for MicroPak Dimensions are in inches (millimeters) unless otherwise noted. Tape Size A B C D N W1 W2 W3 (8mm) 7.0 (177.8) (1.50) (13.00) (20.20) (55.00) / ( / 0.00) (14.40) W / (W / 1.00) FSUSB20 Rev

12 Tape Format for DQFN Dimensions are in millimeters unless otherwise notes. Package Designator Tape Dimensions Tape Section Dimensions are in millimeters unless otherwise noted. Number Cavities Cavity Status Cover Tape Status BQX Leader (Start End) 125 (typ) Empty Sealed Carrier 2500/3000 Filled Sealed Trailer (Hub End) 75 (typ) Empty Sealed FSUSB20 Rev

13 Tape Dimensions for MSOP Dimensions are in inches (millimeters) unless otherwise specified. Reel Dimensions for MSOP Dimensions are in inches (millimeters) unless otherwise specified Tape Size A B C D N W1 W2 W3 (12mm) 13 (330) (1.5) (13) (20.2) (178) (12.4) (18.4) ( ) FSUSB20 Rev

14 Physical Dimensions (Continued) Dimensions are in millimeters unless otherwise noted. Figure Lead MicroPak, 1.6 x 2.1mm FSUSB20 Rev

15 Physical Dimensions (Continued) Dimensions are in millimeters unless otherwise noted. Figure Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 3.0mm FSUSB20 Rev

16 Physical Dimensions (Continued) Dimensions are in millimeters unless otherwise noted. Figure Lead Molded Small Outline Package (MSOP), JEDEC MO-187, 3.0mm Wide FSUSB20 Rev

17 FSUSB20 Rev

FSUSB22 Low-Power, 2-Port, High-Speed USB 2.0 (480Mbps) Switch

March 2008 FSUSB22 Low-Power, 2-Port, High-Speed USB 2.0 (480Mbps) Switch Features -40dB Off Isolation at 250MHz -40dB Non-adjacent Channel Crosstalk at 250MHz On Resistance: 4.5Ω Typical (RON) -3dB Bandwidth: