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Preliminary FSUSB20 Low Voltage Ultra Low Power USB High Speed (480 Mbps) Dual DPDT Switch (Preliminary)
March 2005 Revised April 2005
FSUSB20 Low Voltage Ultra Low Power USB High Speed (480 Mbps) Dual DPDT Switch (Preliminary)
General Description
FSUSB20 is a low power high bandwidth analog switch specially designed for applications of the switching of high speed USB 2.0 signals in handset and consumer applications such as cell phone, digital camera, and notebook with hubs or controllers of limited USB I/O. The wide bandwidth (!720MHz) of this switch allows signals to pass with minimum edge and phase distortion. Superior channel-to-channel crosstalk results in minimal interference. It is compatible with high speed USB2.0 standard.
Features
s 30dB OFF Isolation at 250MHz s 30dB non-adjacent channel crosstalk at 250MHz s 4.5: typical On Resistance (RON) s 3dB bandwidth: !720MHz s Low power consumption (1uA max) s Control input: LVTTL compatible s Bidirectional operation s USB high speed and full speed signaling capability
Applications
* Cell phone, PDA, digital camera, and notebook
Ordering Code:
Order Number FSUSB20L10X (Preliminary) FSUSB20BQX Package Number MAC010A MLP014A Package Description Pb-Free 10-Lead MicroPak, 1.6 mm x 2.1mm Pb-Free 14-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 3.0mm
Pb-Free package per JEDEC J-STD-020B.
MicroPak is a trademark of Fairchild Semiconductor Corporation.
(c) 2005 Fairchild Semiconductor Corporation
DS500914
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Preliminary FSUSB20 Analog Symbol Connection Diagrams
Pad Assignments for MicroPak
(Top View) Pad Assignments for DQFN
Pin Descriptions
Pin Name OE S A B1-B2 Description Bus Switch Enable Select Input Bus A Bus B
Truth Table
S X L H OE H L L Function Disconnect A A B1 B2 (Top Through View)
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Preliminary FSUSB20 Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC) DC Switch Voltage (VS) DC Input Voltage (VIN) (Note 2) DC Input Diode Current (lIK) VIN 0V DC Output (IOUT) Sink Current DC VCC/GND Current (ICC /IGND) Storage Temperature Range (TSTG) ESD Human Body Model All Pins I/O to GND 4kV 5kV
0.5V to 4.6V 0.5V to VCC 0.05V 0.5V to 4.6V 50 mA
50 mA
Recommended Operating Conditions (Note 3)
Power Supply Operating (VCC) Input Voltage (VIN) Output Voltage (VOUT) Input Rise and Fall Time (tr, tf) Switch Control Input Switch I/O Free Air Operating Temperature (TA) 0 ns/V to 5 ns/V 0 ns/V to DC 3.0V to 3.6V 0V to VCC 0V to VCC
r100 mA 65qC to 150 qC
40 qC to 85 qC
Note 1: 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 rating. The Recommended Operating Conditions tables will define the conditions for actual device operation. Note 2: The input and output negative voltage ratings may be exceeded if the input and output diode current ratings are observed. Note 3: Unused control inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Symbol VIK VIH VIL II IOFF RON Parameter Clamp Diode Voltage HIGH Level Input Voltage LOW Level Input Voltage Input Leakage Current OFF-STATE Leakage Current Switch On Resistance (Note 5) VCC (V) 3.0 3.0 - 3.6 3.0 - 3.6 3.6 3.6 3.0 3.0 5.0 4.5 0.3 1.0 1.3 1.0 2.0 0.8 TA Min
40 qC to 85 qC
Typ (Note 4) Max Units V V V IIN Conditions
1.2
18 mA
r1.0 r1.0
7.0 6.5
PA PA : : : : PA
0 d VIN d 3.6V 0 d A, B d VCC VIN ION VIN ION VIN IOUT VIN 0.8V 8 mA 3.0V 8 mA 0.8V, VIN 8 mA VCC or GND, IOUT 0 0V - 1.5V, ION 8 mA
'RON
RFLAT(ON) ICC
Delta RON On Resistance Flatness (Note 6) Quiescent Supply Current
3.0V and TA
3.0 3.0 3.6
25qC
Note 4: Typical values are at VCC
Note 5: 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. Note 6: Flatness is defined as the difference between the maximum and minimum value On Resistance over the specified range of conditions.
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Preliminary FSUSB20 AC Electrical Characteristics
Symbol tON tOFF tPD OIRR XTALK BW Parameter Turn ON Time S-to-Bus B Turn OFF Time S-to-Bus B Propagation Delay Non-Adjacent OFF-Isolation Non-Adjacent Channel Crosstalk VCC (V) 3.0 to 3.6 3.0 to 3.6 3.0 to 3.6 3.0 to 3.6 3.0 to 3.6 3.0 to 3.6
3.3V and T A
TA Min
40qC to 85qC
Typ (Note 7) 4.8 2.2 0.25 Max 7.0 4.0 Units ns ns ns dB dB MHz VB VB CL f RL RL 0.8V 0.8V 10 pF 250MHz, RL 50: 50: Conditions
Figure Number Figures 5, 6 Figures 5, 6 Figure 10 Figure 7 Figure 8 Figure 9
28.0 30.0
750
50:, f 250MHz
3dB Bandwidth
Note 7: Typical values are at VCC
25qC
USB Related AC Electrical Characteristics
Symbol tSK(O) tSK(P) TJ Parameter Channel-to-Channel Skew Skew of Opposite Transition of the Same Output Total Jitter
3.3V and T A
(Note 8)
Units ns ns ns CL CL RL tR 10 pF 10 pF 50:, CL tF 10 pF Conditions Figure Number Figures 10, 11 Figures 10, 11
VCC (V) 3.0 to 3.6 3.0 to 3.6 3.0 to 3.6
25qC
TA Min
40qC to 85qC
Typ 0.051 0.020 0.210 Max
750ps at 480 Mbps
Note 8: Typical values are at VCC
Capacitance
Symbol CIN CON COFF
(Note 9)
Parameter TA
40qC to 85qC
Typ 2.5 12.0 4.0
Units pF pF pF VCC VCC 0V
Conditions
Control Pin Input Capacitance A/B ON Capacitance Port B OFF Capacitance
3.3V and T A
3.3V, OE
0V
VCC and OE
3.3V
Note 9: Typical values are at VCC
25qC
FIGURE 1. Gain vs. Frequency
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Preliminary FSUSB20
FIGURE 2. OFF Isolation
FIGURE 3. Crosstalk
FIGURE 4. RON 5 www.fairchildsemi.com
Preliminary FSUSB20 AC Loading and Waveforms
Note: Input driven by 50: source terminated in 50: Note: CL includes load and stray capacitance Note: Input PRR 1.0 MHz, t W 500 ns
FIGURE 5. AC Test Circuit
FIGURE 6. AC Waveforms
FIGURE 7. OFF Isolation Test
FIGURE 8. Crosstalk Test
FIGURE 9. Bandwidth Test
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Preliminary FSUSB20 AC Loading and Waveforms
(Continued)
FIGURE 10. Propagation Delay
Pulse Skew tSK(P)
Output Skew tSK(O) FIGURE 11. Skew Test
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Preliminary FSUSB20 Tape and Reel Specification
Tape Format For Micropak Package Designator L10X 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
REEL DIMENSIONS inches (millimeters)
Tape Size 8 mm
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)
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Preliminary FSUSB20 Tape and Reel Specification
Tape Format for DQFN Package Designator BQX Tape Section Leader (Start End) Carrier Trailer (Hub End) TAPE DIMENSIONS inches (millimeters) (Continued) Number Cavities 125 (typ) 2500/3000 75 (typ) Cavity Status Empty Filled Empty Cover Tape Status Sealed Sealed Sealed
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Preliminary FSUSB20 Physical Dimensions inches (millimeters) unless otherwise noted
Pb-Free 10-Lead MicroPak, 1.6 mm x 2.1mm Package Number MAC010A
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Preliminary FSUSB20 Low Voltage Ultra Low Power USB High Speed (480 Mbps) Dual DPDT Switch (Preliminary) Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
Pb-Free 14-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 3.0mm Package Number MLP014A
Technology Description
The Fairchild Switch family derives from and embodies Fairchild's proven switch technology used for several years in its 74LVX3L384 (FST3384) bus switch product. Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. 11 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com
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