FSA4476 datasheet(2/15 Pages) ONSEMI

2 / 15 page

May 2017

www.onsemi.com

FSA4476 • Rev. 1.3 .2

FSA4476

— USB Type-C analog audio switch with protection

function

Features

 Power Management

Primary power supply: VBAT, 2.7 V to 5.5 V

Second power supply VBUS, 4.0 V to 20 V

 USB High Speed(480Mbps) Switch:

-3dB bandwidth: 1 GHz

Ω RON Typical

 Audio switch

Negative rail capability: -3V to +3V

THD+N = -110 dB; 1 VRMS, f = 20Hz~20 kHz ,

Ω Load;

0.6

Ω RON Typical

 High voltage protection

20V DC protection on CC port and SBU port

16V DC protection on DP/R and DN/L port

 Over Voltage Protection:

5.8V (Typ) on CC port

4.5V (Typ) on SBU port

4.5V (Typ) on DP/R and DN/L port

 OMTP and CTIA pinout support

 Support Audio Sense Path

 Support Dead Battery

 25-ball WLCSP Package (2.03mm x 2.03mm)

Applications

 Mobile Phone, Tablet, Notebook PC, Media Player

Description

FSA4476 is a high performance USB Type-C port

multimedia

switch

which

supports

analog

audio

headsets. FSA4476 allows the sharing of a common

USB Type-C port to pass USB2.0 signal, analog audio,

sideband use wires and analog microphone signal.

FSA4476 also supports high voltage on CC port, SBU

port and USB port on USB Type-C receptacle side. In

addition, FSA4476 supports USB Type-C dead battery

application and dual power supply with VBAT rail and

VBUS rail.

Audio Codec

FSA4476

DN/L

DP/R

SBU2

SBU1

MIC

GND_M

SBU1

VBUS

SSRXn2

SSRXp2

GND

SSTXp1

VBUS

CC1

SSTXn1

CC2

VBUS

SSTXn2

SSTXp2

GND

SSRXp1

VBUS

SBU2

SSRXn1

USB Type-C

Receptacle

HPL

HPR

MIC

SBU2_H

SBU1_H

SBU2

SBU1

VBAT

EN2

GPIO2

CTL

INT1

CC2

CC1

SENSE

Logic

CC1

CC2

CC1_H

CC2_H

VBUS

EN1

GPIO1

GND

INT

Figure 1.

Application Block Diagram

Ordering Information

Part Number

Top Mark

Package Description

FSA4476UCX

25 Ball WLCSP

FSA4476 Datasheet(PDF) 2 Page - ON Semiconductor

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