FSA4476UCX

FSA4476 — USB Type-C analog audio switch with protection function Features  Power Management Description 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 3ΩRON Typical  Audio switch Negative rail capability: -3V to +3V THD+N = -110 dB; 1 VRMS, f=20Hz~20 kHz,32Ω Load; 0.6ΩRON Typical  High voltage protection FSA4476 is a high performance USBType-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. VBAT CC1 CC Logic CC2 VBUS CC1_H CC1 CC2_H CC2 USB Type-C Receptacle 20V DC protection on CC port and SBU port 16V DC protection on DP/R and DN/L port  Over Voltage Protection: FSA4476 L HPL HPR DN Audio Codec 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  SupportDead Battery  25-ball WLCSP Package (2.03mm x 2.03mm) Applications  Mobile Phone, Tablet, Notebook PC, Media Player R DP SENSE GND DN/L DP/R MIC MIC SBU2 SBU1 GND SSRXp1 SSTXp1 SSRXn1 SSTXn1 VBUS VBUS SBU2 CC1 DN DP DP DN CC2 SBU1 VBUS VBUS SSTXn2 SSRXn2 SSTXp2 SSRXp2 GND GND GND_M DN DP EN1 EN2 INT1 SBU2_H SBU1_H GPIO1 GPIO2 AP INT1 SBU2 SBU1 CTL INT Figure 1. EN INT GND Application Block Diagram Ordering Information Part Number Top Mark Package Description FSA4476UCX GR 25 Ball WLCSP © 2016Semiconductor Components Industries, LLC FSA4476 • Rev. 3.0.1 www.onsemi.com FSA4476 — USB Type-C analog audio switch with protection function September 2017 FSA4476 — USB Type-C analog audio switch with protection function Pin Configuration A VBUS VBAT INT CC2_H CC1_H B SBU2_H SBU1_H NC CC2 CC1 C GND_M INT1 ENN L DN/L D GND MIC EN1 R DP/R E SBU2 SBU1 EN2 DP DN 1 2 3 4 5 Figure 2. Pin Assignment (Top Through View) Pin Descriptions Name Ball VBUS A1 Power Supply VBAT A2 Power Supply GND D1 Ground DP/R D5 USB Positive Data/Right Audio Common Line DN/L C5 USB Negative Data/Left Audio Common Line DP E4 Positive DataLine for USB signals DN E5 Negative DataLine for USB signals L C4 Left Line for Audio Signals R D4 Right Line for Audio Signals SBU1 E2 Sideband Use Wire 1 Common Line SBU2 E1 Sideband Use Wire 2 Common Line MIC D2 Microphone, connects to microphone pre-amplifier GND_M C1 Sense Pin to Detect GND offset SBU1_H B2 Host Side Sideband Use Wire 1 © 2016Semiconductor Components Industries, LLC FSA4476 Rev. 3.0.1 Description www.onsemi.com 2 Ball Description SBU2_H B1 Host Side Sideband Use Wire 2 CC1 B5 Configuration Channel 1 CC2 B4 Configuration Channel 2 CC1_H A5 Host Side Configuration Channel 1 CC2_H A4 Host Side Configuration Channel 2 INT A3 OVP Interrupt Output, active low(open drain) INT1 C2 Interrupt Output Signal; During EN1=1, INT1 is low active (open drain output) when CC1_H