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FSUSB23 -- High-Speed, USB2.0 (480Mbps) Switch
April 2008
FSUSB23 -- High-Speed, USB2.0 (480Mbps) Switch
Features
10A Maximum ICCT Current over an Expanded Control Voltage Range: VIN = 2.6V, VCC = 3.6V) Lower Capacitance: CON = 9pF Typical 7 Typical On Resistance (RON) -3dB Bandwidth: > 720MHz Low Power Consumption: 1mA Maximum Wide -3db Bandwidth: > 720MHz Packaged in:
Description
The FSUSB23 is a low-power, high-bandwidth analog switch specifically designed for high speed USB 2.0 applications. The FSUSB23 features very low quiescent current even when the control voltage is lower than the VCC supply. This feature services mobile handset applications, allowing direct interface with the baseband processor general-purpose I/Os. Typical applications involve switching in portables and consumer applications, such as cell phones, digital cameras, and notebooks with hubs or controllers. The wide bandwidth (>720MHz) of this switch exceeds the bandwidth needed to pass the third harmonic, which results in signals with minimum edge and phase distortion. Superior channel-to-channel crosstalk results in minimal interference.
- 10-Lead MicroPakTM (1.6 x 2.1mm) - 16-Lead DQFN (2.5 x3.5mm)
7kV I/O to GND ESD Performance
Applications
Cell phone, PDA, Digital Camera, and Notebook LCD Monitor, TV, and Set-Top Box
Ordering Information
Part Number
FSUSB23L10X FSUSB23BQX
Top Mark
EZ USB23
Operating Temperature Range
-40 to +85C -40 to +85C
Package
10-Lead MicroPakTM 1.6 x 2.1mm, JEDEC MO-255B 16-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 3.5mm
MicroPakTM is a trademark of Fairchild Semiconductor Corporation. All packages are lead free per JEDEC: J-STD-020B standard.
D1+ D2+ D1D2S /OE
D+
D-
Control
Figure 1. Analog Symbol
(c) 2006 Fairchild Semiconductor Corporation FSUSB23 * Rev. 1.0.1 www.fairchildsemi.com
FSUSB23 -- High-Speed, USB2.0 (480Mbps) Switch
Pin Configurations
S
1
VCC
16 15 /OE 14 D1-
/OE
D1-
D2-
D-
D1+ 2 D2+ 3 D+ 4 NC
5
9 Vcc 10 1
8
7
6 5
GND
13 D2-
12
D-
2
3
4
NC
D1+
D2+
D+
6
11 NC 10 NC 8 9
S
NC 7 GND NC
Figure 2. Pad Assignments for MicroPakTM (Top Through View)
Figure 3. Pin Assignments for DQFN (Top Through View)
Pin Definitions
Pin # Micropak
1 9 2, 3, 4 ,6, 7, 8 10 5
Pin # DQFN
1 15 2, 3, 4, 12, 13, 14 16 8 5, 6, 7, 9, 10, 11
Pin Name
S /OE D+, D-, Dn+, DnVCC GND NC
Pin Description
Switch Select Bus Switch Enable Data Port Supply Voltage Ground No Connect
Truth Table
Sel
X LOW HIGH
/OE
HIGH LOW LOW
Function
Disconnect D+, D- = D1n D+, D- = D2n
(c) 2006 Fairchild Semiconductor Corporation FSUSB23 * Rev. 1.0.1
www.fairchildsemi.com 2
FSUSB23 -- High-Speed, USB2.0 (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 VSW VIN IIK IOUT TSTG ESD Supply Voltage DC Switch Voltage DC Input Voltage
(1) (1)
Parameter
Min.
-0.5 -0.5 -0.5 -50
Max.
4.6 VCC + 0.5 4.6 50
Unit
V V V mA mA C kV
DC Input Diode Current DC Output Current Storage Temperature Human Body Model, JEDEC: JESD22-A114 All Pins I/O to GND
-65
+150 7 7
Note: 1. The input and output negative ratings may be exceeded if the input and output diode current ratings are observed. DC switch voltage may never exceed 4.6V.
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 VCNTRL VSW TA JA Supply Voltage Control Input Voltage Switch Input Voltage Operating Temperature Thermal Resistance
(2)(3)
Parameter
Min.
3.0 0 0 -40 Micropak
Max.
3.6 VCC VCC +85 250
Unit
V V V C C/W
Note: 2. 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. 3. The control input must be held HIGH or LOW; it must not float.
(c) 2006 Fairchild Semiconductor Corporation FSUSB23 * Rev. 1.0.1
www.fairchildsemi.com 3
FSUSB23 -- High-Speed, USB2.0 (480Mbps) Switch
DC Electrical Characteristics
All typical values are at 25C unless otherwise specified.
Symbol
VIK VIH VIL IIN IOZ RON RON RON Flat ICC ICCT
Parameter
Clamp Diode Voltage Input Voltage High Input Voltage Low Control Input Leakage Off State Leakage Switch On Resistance Delta RON
(5) (4) (4)
Conditions
IIN=-18mA
VCC (V)
3.0 3.0 to 3.6 3.0 to 3.6
TA=- 40C to +85C Min.
1.2 .50 1 1
Units
V V V A A
Typ.
Max.
-1.2
VIN=0V to VCC 0 Dn, D1n, D2n VCC VSW =0.4V, ION=-8mA VSW =0.8V, ION=-8mA VIN=0.4V, ION=-8mA VIN=0V-1.0V, ION=-8mA VIN=0 or VCC, IOUT=0 VIN=2.6V VCC=3.6V
3.6
3.0 3.0 3.0 3.6 3.6
6 7 0.3 2.0
9 10
RON Flatness
Quiescent Supply Current Increase in ICC Current Per Control Voltage and VCC
1 10
A A
Notes: 4. Measured by the voltage drop across the Dn, D1n, D2n pins at the indicated current through the switch. On resistance is determined by the lower of the voltage on the two (HSDn or Dn ports). 5. Guaranteed by characterization.
AC Electrical Characteristics
All typical values are for VCC=3.3V at 25C unless otherwise specified.
Symbol
Parameter
Turn-On Time S, /OE to Output Turn-Off Time S, /OE to Output Propagation Delay Off Isolation, Non-Adjacent Non-Adjacent Channel Crosstalk -3db Bandwidth
(6)
Conditions
VD1n, D2n=0.8V, RL=50, CL=10pF Figure 8 VD1n, D2n=0.8V, RL=50, CL=10pF Figure 8 RL=50, CL=10pF Figure 6, Figure 7 f=250MHz, RT=50 Figure 14 f=250MHz, RT=50 Figure 9 RT=50 Figure 13
VCC (V)
3.0 to 3.6
TA=- 40C to +85C Min. Typ.
10
Units
Max.
13 ns
tON
tOFF tPD OIRR Xtalk BW
3.0 to 3.6 3.3 3.0 to 3.6 3.0 to 3.6 3.0 to 3.6
8 0.25 -30 -43 720
11
ns ns dB dB MHz
Note: 6. Guaranteed by characterization.
(c) 2006 Fairchild Semiconductor Corporation FSUSB23 * Rev. 1.0.1
www.fairchildsemi.com 4
FSUSB23 -- High-Speed, USB2.0 (480Mbps) Switch
USB Hi-Speed-Related AC Electrical Characteristics
Symbol Parameter
(7)
Conditions
RL=50, CL=10pF Figure 6, Figure 12 RL=50, CL=10pF Figure 6, Figure 12 RL=50, CL=10pf, tR=tF=750ps at 480Mbps 15 (PRBS=2 - 1)
VCC (V)
3.0 to 3.6
TA=- 40C to +85C Min. Typ.
40
Units
Max.
ps
tSK(O)
Channel-to-Channel Skew
tSK(P)
Skew of Opposite Transitions (7) of the Same Output Total Jitter
(7)
3.0 to 3.6
20
ps
tJ
3.0 to 3.6
150
ps
Note: 7. Guaranteed by characterization.
Capacitance
Symbol
CIN CON COFF
Parameter
Control Pin Input Capacitance D1n, D2n, Dn On Capacitance D1n, D2n Off Capacitance VCC=0V Figure 11
Conditions
TA=- 40C to +85C Min. Typ.
2 9 4
Units
pF pF pF
Max.
VCC=3.3V, /OE=0V Figure 10 VCC and /OE=3.3V Figure 11
(c) 2006 Fairchild Semiconductor Corporation FSUSB23 * Rev. 1.0.1
www.fairchildsemi.com 5
FSUSB23 -- High-Speed, USB2.0 (480Mbps) Switch
Test Diagrams
VON
NC
D1n, D2n
I D (OFF) n A VIN Select
Dn VIN
GND
I ON
Select
GND
GND
VS =0 or VCC **Each switch port is tested separately
R ON =
VON / ION
VS = 0 to VCC
Figure 4. On Resistance
Figure 5. Off Leakage
D1+, D1D1+, D1VIN GND RS CL GND
400mV
tRISE=500ps
tFALL=500ps
RL
VOUT
800mV Input:Dn+, Dn-
90% 50%
90% 50% 10% 50%
10%
V Sel GND R L, RS , and C L are fun ctions of the app lication environment (see AC Tables for spec ific va lues) C L includ es test fixture and stray capacitance.
VOH 50%
Output:D+, D-
VOL
tPLH
tPHL
Figure 6. AC Test Circuit Load
Figure 7. Switch Propagation Delay Waveforms
tRISE=2.5ns VCC
Input - S, /OE
tFALL=2.5ns
NC
Network Analyzer
RS
GND
90% VCC/2
90% VCC/2
VSel
V IN
VS
GND
GND
10% VOH
10% 90%
GND
RT
GND
90%
Output - VOUT
GND
RT
GND
V OUT
VOL tON tOFF
RS and RT are functions of the application environment (50, 75 or 100).
Crosstalk = 20 Log (VOUT / VIN)
Figure 8. Turn On / Turn Off Waveform
Figure 9. Non-Adjacent Channel-to-Channel Crosstalk
(c) 2006 Fairchild Semiconductor Corporation FSUSB23 * Rev. 1.0.1
www.fairchildsemi.com 6
FSUSB23 -- High-Speed, USB2.0 (480Mbps) Switch
Test Diagrams (Continued)
Capacitance Meter f=1MHz D1n, D2n Dn S VSel =0 or VCC
Capacitance Meter f=1MHz D1n, D2n Dn S VSel = 0 or VCC
Figure 10. Channel On Capacitance
Figure 11. Channel Off Capacitance
tRISE=750ps
800mV
tFALL=750ps
tRISE=750ps
800mV Input:Dn+, Dn400mV
tFALL=750ps
Input: D+, D-
90% 50%
90% 50% 10% 50%
400mV
10%
90% 50%
90% 50% 10% 50%
VOH 50%
Output 1: D+, D-
10%
VOH 50%
Output:D+, D-
VOL
tPLH1
tPHL1
VOL
tPLH TSK(P)= tPHL-tPLH Pulse Skew, TSK(P)
tPHL
VOH 50%
Output 1: D2+, D2-
50%
VOL
tPLH2
tPHL2
Figure 12. Switch Skew Tests
Network Analyzer RS GND VIN VS GND
VSel GND
VOUT GND RSand RT are functions of the application environment (see AC tables for specific values). RT GND
Figure 13. Bandwidth
Network Analyzer RS VSel GND RT GND GND VIN VS GND
VOUT GND Off Isolation =20Log(VOUT/VIN) GND RT
Figure 14. Channel Off Isolation
(c) 2006 Fairchild Semiconductor Corporation FSUSB23 * Rev. 1.0.1 www.fairchildsemi.com 7
FSUSB23 -- High-Speed, USB2.0 (480Mbps) Switch
Physical Dimensions
Figure 15. 10-Lead MicroPakTM 1.6 x 2.1mm Note: click here for tape and reel specifcations, available at: http://www.fairchildsemi.com/products/analog/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/
(c) 2006 Fairchild Semiconductor Corporation FSUSB23 * Rev. 1.0.1
www.fairchildsemi.com 8
FSUSB23 -- High-Speed, USB2.0 (480Mbps) Switch
Physical Dimensions
Figure 16. 16-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN) Package Note: click here for tape and reel specifcations, available at: http://www.fairchildsemi.com/products/analog/packaging/MLP16_25x35.html
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/
(c) 2006 Fairchild Semiconductor Corporation FSUSB23 * Rev. 1.0.1
www.fairchildsemi.com 9
FSUSB23 -- High-Speed, USB2.0 (480Mbps) Switch
(c) 2006 Fairchild Semiconductor Corporation FSUSB23 * Rev. 1.0.1
www.fairchildsemi.com 10

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