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PDF FSA221 Data sheet ( Hoja de datos )
| Número de pieza | FSA221 | |
| Descripción | USB2.0 High-Speed (480Mbps) and Audio Switches | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de FSA221 (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
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translated into Chinese!
November 2006
FSA221 USB2.0 High-Speed (480Mbps) and
Audio Switches with Negative Signal Capability
Features
HS-USB: 4Ω Typical On Resistance
Audio: 3Ω Typical On Resistance
-3db Bandwidth: > 720MHz
Low Power Consumption
Packaged in Pb-free 10-Lead MicroPak™
(1.6 x 2.1mm), 10-pin MSOP (Preliminary)
Power-off Protection on Common D+/R, D-/L Ports
Automatically Detects Vbus for Switch Path
Selection
D+/R, D-/L Ports: 8pf Typical On Capacitance
Applications
Cell Phone, PDA, Digital Camera, and Notebook
LCD Monitor, TV, and Set-top Box
Description
The FSA221 is a Double-Pole, Double Throw (DPDT)
multiplexer that combines a low-distortion audio and a
USB2.0 High-Speed (HS) switch path. This
configuration enables audio and USB data to share a
common connector port. The architecture is designed to
allow audio signals to swing below ground. This means a
common USB and headphone jack can be used for personal
media players and similar portable peripheral devices.
Since USB2.0 is an industry standard for shared data-
path in portable devices, the FSA221 also incorporates
a Vbus detection capability. The FSA221 includes a
power-off feature to minimize current consumption when
Vbus is not present. This power-off circuitry is available
for the common D+/R, D-/L ports only. Typical
applications involve switching in portables and
consumer applications, such as cell phones, digital
cameras, and notebooks with hubs or controllers.
Ordering Information
Part Number Package Number Top Mark Pb-Free
Package Description
FSA221L10X
MAC010A
GK Yes 10-Lead MicroPak, JEDEC MO-255, 1.6 x 2.1mm
FSA221MUX (Preliminary)
MUA10A
FSA221 Yes 10-Lead MSOP JEDEC MO-187, 3.0 mm Wide
FSA221UMX (Preliminary)
MLP010A
GL Yes 10-Lead Quad, Ultrathin MLP, 1.4 x 1.8mm
Vbus
Vaudio
D+
R
D-
L
Switch Select
Control Circuitry
ASel
Rpd
GND
D+/R
D-/L
Figure 1. FSA221 Analog Symbol
© 2006 Fairchild Semiconductor Corporation
FSA221 Rev. 1.0.3
www.fairchildsemi.com
1 page  
DC Electrical Characteristics
All typical values are at 25ºC unless otherwise specified.
Symbol
Parameter
Common Pins
VIK
Clamp Diode
Voltage
VIH
Control Input
Voltage HIGH
VIL
Control Input
Voltage LOW
IIN
ASel Input HIGH
Current
IOFF
INO(0FF)
Power Off Leakage
Current (Common
Port Only D+/R,
D-/L)
Off-Leakage
Current of Port
D+, D-, R, L
INC(0N)
On-Leakage
Current of Port
D+/R or D-/L
RPD ASel Internal Pull-
Down Resistor
USB Switch Path
USB Analog Signal
Range
RONUSB
HS Switch On
Resistance(4)
∆ RONUSB HS Delta RON(5,6)
Audio Switch Path
Audio Analog
Signal Range
RONAudio
Audio Switch On
Resistance(4)
∆ RONAudio Audio Delta RON(5)
RFLAT(Audio)
Audio RON
Flatness(7)
VAudio
(V)
VAudio (V)
3.0
Conditions
IIK = -18mA
3.0 to 3.6
3.0 to 3.6
3.6 VIN = 3.6V
VIN = 0V
Vaudio = Common Port (D+/R, D-/L)
Vbus = 0V VSW = 0V to 5.5V
3.6 Vbus = 0V, 5. 5V
D+/R, D-/L = 0.3V, VAUDIO – 0.3V
D+, D-, R, L = 0.3V, VAUDIO –0.3V
or Floating
See Figure 11
3.6 Vbus = 0V, 5.5V
D+/R, D-/L = 0.3V, VAUDIO – 0.3V
D+, D-, R, L = Floating
See Figure 12
Vbus (V)
4.25
4.25
VAudio (V)
VD+/D- = 0V, 0.4V, ION = -8mA,
VAUDIO = 3V
VD+/D- = 0V, ION = -8mA,
VAUDIO = 3V
3.0
VL/R = -2V, 0V, 0.7V, Vbus = 0V
VAUDIO-0.7V, VAUDIO ION = -26mA
3.0 VL/R = 0.7V ION = -26mA
3.0 ION = -26mA
TA = - 40°C to +85°C
Unit
Min. Typ. Max.
-1.2
1.2 V
0.5
-1 10 µA
-1 1
10 µA
-50 1 50 nA
-50 1 50 nA
3 MΩ
0 3.6 V
4 6Ω
0.4 Ω
Vaudio –
5.5
3
0.4
1.5
Vaudio
5
2.5
V
Ω
Ω
Ω
Continued on following page…
© 2006 Fairchild Semiconductor Corporation
FSA221 Rev. 1.0.3
5
www.fairchildsemi.com
5 Page 
Test Diagrams
VON
Dn or R/L
VSW
GND
RON = VON / ION
D+/R or D-/L
ION
GND
VCNTRL = fn (Vaudio and Vbus)
Figure 10. On Resistance
I (OFF)
A
Vsw
GND
D+, D-
or R/L
D+/R or D-/L
VCNTRL = fn (Vaudio and Vbus)
Figure 11. Off Leakage
D+, D- or R/L
IA(ON)
A
D+/R or
D-/L
Vsw
GND
VCNTRL = fn (Vaudio and Vbus)
Figure 12. On Leakage
VOUT
CL
D+, D- or R,L
RL
GND RS
D+/R or D-/L
Vsw
GND
VCNTRL = fn (Vaudio and Vbus)
GND
RL , RS and CL are function of application
environment (see AC Tables for specific values)
CL includes test fixture and stray capacitance
Figure 13. AC Test Circuit Load
tRISE = 2.5ns
tFALL = 2.5ns
3V
Input - VASel
GND
10%
VOH
Output - VOUT
90%
50%
90%
50%
90%
VOL
tON tOFF
10%
90%
Figure 14. Turn-On / Turn-Off
Waveforms (ASel)
tRISE = 1us
Vbus
Input - VCNTRL
GND
10%
Vth(max) 90%
Vth(min)
VOH
Output - VOUT
90%
VOL
VCNTRL = fn (Vaudio and Vbus)
tON tOFF
tFALL = 1 us
10%
90%
Vth = Vbusth or Vaudioth
Figure 15. Turn-On / Turn-Off Waveforms (USB/Audio)
© 2006 Fairchild Semiconductor Corporation
FSA221 Rev. 1.0.3
11
www.fairchildsemi.com
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet FSA221.PDF ] | |
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