Texas Instruments has developed USB Type-C™ sideband-use (SBU) muxes specifically designed for portable audio applications. These muxes, namely TS3USBCA4, come in two variants: a passive 4:1 mux (TS3USBCA420) and a 3:1 mux (TS3USBCA410). They enable the transmission of various types of differential or single-ended signals on the SBU1 and SBU2 terminals of a USB Type-C connector to different interfaces.
The TS3USBCA4 muxes support signals such as differential DisplayPort auxiliary (AUX), analog audio MIC, analog ground (AGND), peripheral component interconnect express (PCIe) differential clock, and other generic differential or single-ended signals. The audio path of these muxes is characterized by ultra-low ON-state resistance (RON), low crosstalk, and excellent total harmonic distortion (THD). This ensures high-quality audio transmission.
One of the notable features of the TS3USBCA4 muxes is the break-before-make (BBM) functionality, which prevents signal distortion during channel switching. This ensures a seamless transfer of signals from one channel to another without any interruption or distortion.
Additionally, the high-speed paths of the TS3USBCA4 muxes support a bandwidth of up to 500 MHz. This capability provides adequate support for high-speed signals like DisplayPort AUX, PCIe clocks, and other similar signals.
The TS3USBCA4 muxes are designed with low power consumption in mind, making them ideal for portable audio applications. They operate within a wide supply range of 2.4 V to 5.5 V, providing flexibility in power sources such as single-cell batteries, 3.3 V regulators, or VBUS.
Furthermore, Texas Instruments offers options for both commercial and industrial temperature ranges, ensuring the TS3USBCA4 muxes can be used in various environments.
In conclusion, Texas Instruments' TS3USBCA4 muxes are a reliable solution for portable audio applications. With their low resistance, low crosstalk, high bandwidth, and power efficiency, these muxes provide high-quality audio transmission while being suitable for a range of power supply options and temperature conditions.
USB Type-C 4:1 (TS3USBCA420) and 3:1 (TS3USBCA410) mux for analog audio MIC/AGND, DisplayPort AUX, and other signals
General purpose mux for 0 V to 3.6 V differential or single-ended signals
Ultra-low RON of 60 mΩ for the AGND connections for low crosstalk performance
1.8 mm x 2.6 mm, 16-pin, 0.4 mm pitch QFN package
High-bandwidth channels up to 500 MHz
Supports pin and I2C configuration
Supports operation from either 3.3 V ±10% regulated supply or 2.4 V to 5.5 V battery
Industrial temp. range: -40°C to +85°C TS3USBCA420I and TS3USBCA410I
Commercial temp. range: 0°C to +70°C TS3USBCA420 and TS3USBCA410
Low THD
Tablets
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Gaming consoles
VR modules
Smartphones
Monitors
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