Describe
RLCS4480 is a high-performance USB Type-C switch combo supporting High-Speed Data, Hi-Fi
Audio, and Side Band Use (SBU). Its audio path delivers wide swing with ultra-low distortion, ideal for
Hi-Fi systems. The USB path ensures low skew/crosstalk, maintaining USB 2.0 signal integrity.SBU
switches configure GND/MIC connections, reducing crosstalk via quasi-differential amplification, and
support eDP AUX signals. Integrated High-Voltage Protection (OVP) safeguards SBU/USB ports.
Featuring 1.8V GPIO/I²C control, it comes in a compact 25-ball WLCSP (2.04mm²), perfect for
mobile devices.
Wide VCC Range (2.5V–25V) –Supports LDO or VBUS power
High-Speed USB Path – Low insertion loss: -1dB@430MHz, -2dB@930MHz, -3dB@1.4GHz
Hi-Fi Audio Path – THD+N = -110dB, 0.707Vrms (100Hz, 32Ω load)
Low Audio Insertion Loss – -1dB@500MHz, -2dB@860MHz, -3dB@1.2GHz
Built-in OVP – 16V-tolerant SBUx/GSBUx, 17V-tolerant DP_R/DN_L (Type-C side)
Surge Protection (IEC 64000-4-5) – 20V (DP/DN), 80V (SBU/GSBU) – No external TVS needed
OMTP & CTIA Pinout Support – Quasi-differential audio sense path
Pop & Click Elimination – Soft turn-on/off for audio path
Power-Off Isolation – True signal cut-off & noise removal
Configurable eDP AUX Support
25-ball WLCSP (2.04mm x 2.04mm)
USB Type-C Receptacle
4G/5G Smart Phone, Mobile and AI Device
