FSA806 Datasheet, PDF (1/12 Pages) Fairchild Semiconductor – USB2.0 High-Speed (480Mbps), UART, and Audio Switch with Negative Signal Capability

July 2012
FSA806 — USB2.0 High-Speed (480Mbps), UART, and
Audio Switch with Negative Signal Capability
Features
 3:1 Switch Handles:
- Audio Headsets
- UART
- Up to Two High- and Low-Speed USB Data
 Negative-Swing-Capable Audio Channel
 Built-in Termination Resistors for Audio Pop
Reduction
 Simple Switch Control Using Two Select Pins
Description
The FSA806 is a 3:1 USB accessory switch that enables
USB data, stereo and mono audio, and UART data to
share a common connector port. Two ports are
designed for high-speed USB 2.0 signaling, while also
capable of full speed USB and UART communication.
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 FSA806 meets both USB Rev. 2.0 and micro-USB
specifications.
Applications
 Cell Phones, MP3 Players, PDAs
Ordering Information
Part Number
FSA806UMX
Operating Temperature
Range
-40 to +85°C
Top Mark
KN
Package
12-Lead Quad, 1.8 x 1.8mm Ultrathin Molded
Leadless Package (UMLP)
VCC _FSA806
R_HOS
L_HOS
DP_HOST
DM_HOST
DP_HOST
DM_HOS
R _3:1
MUX
and
Charge
Pump
DP_CO
DM_CO
GN
SEL[0
SEL[1
Switc
Contro
© 2010 Fairchild Semiconductor Corporation
FSA806 • Rev. 1.0.1
Figure 1. Functional Block Diagram
www.fairchildsemi.com