FSA110_09 Datasheet, PDF (1/2 Pages) Fairchild Semiconductor – Audio and Wired-OR USB2.0 Hi-Speed(480Mbps) Switch with Negative Signal Capability and Built-in Termination

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November 2009
FSA110 — Audio and Wired-OR USB2.0 Hi-Speed
(480Mbps) Switch with Negative Signal Capability and
Built-in Termination
Features
ƒ 6pF Typical Switch Off Capacitance for HS USB
ƒ 2.5Ω Typical On Resistance for Audio Signaling
ƒ Negative-Swing-Capable Audio Channel
ƒ Automatic USB Detection Available
ƒ Power-Off Protection on the D+/R, D-/L Ports
ƒ Flow-Through Pin Out Eliminates PCB Vias
ƒ Built-In Termination on Unselected Audio Paths
Inhibits Audio Pop
Applications
ƒ Cell Phone, PDA, Digital Camera, and Notebook
ƒ LCD Monitor, TV, and Set-Top Box
Description
The FSA110 is a Double-Pole, Single Throw (DPST)
switch that combines a low-distortion audio path with
low off capacitance for USB applications. This
configuration is ideal for wired-OR configurations,
enabling shared USB2.0 Hi-Speed (HS) and audio on a
single connector. The architecture is designed to allow
audio signals to swing below ground so a common USB
and headphone jack can be used for personal media
players and portable peripheral devices.
The FSA110 is configured for default USB transfer,
which gives the user control of when the audio path is
enabled. The audio path defaults to audio mute and is
enabled with /OE. The FSA110 includes a power-off
feature on the common port when VCC=0V to guarantee
signal isolation.
IMPORTANT NOTE:
For additional performance information, please contact
[e-mail].
Ordering Information
Part
Number
Top Mark
Eco Status
Package Description
FSA110K8X
FSA110UMX
A110
GZ
Green
Green
8-Lead US8, JEDEC MO-187, Variation CA, 3.0mm Wide Package
10-Lead Quad, Ultrathin MLP, 1.4 x 1.8mm
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html
VCC
© 2007 Fairchild Semiconductor Corporation
FSA110 Rev. 1.0.2
Control
Block
Rpu
/OE
R
R_T
L
R_T
D+/R
D-/L
Figure 1. Analog Symbol
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