PI3A6386 includes a dual, single-pole double throw (SPDT) switch for high-speed USB signal and high quality audio signal. It can be used in USB Type-C D+/D- switching for USB signal in data mode and analog audio signal in audio accessory mode.
The audio path with negative signal handling capability has a very low THD of -110dB for high-quality audio requirement. It also has a programmable soft-start/soft-stop feature to eliminate the click/pop sounds of DC-coupled audio signals. The data path has a high USB bandwidth of 1GHZ for USH High Speed signals.
PI3A6386 can also detect the microphone signals in SBU1 and SBU2, and automaticlaly route them to the correct inputs of microphone amplifier. Separate switches for microphone negative input and audio signal ground can minimize the crosstalk & echo between audio output signals and microphone input signals. Sideband switches can be configured to route SBU1 and SBU2 for sideband usage.
Cell Phones, PDAs, MP3 Players
Support USB High Speed (480Mbps) and Full Speed (12Mbps) Signaling Capability per USB 2.0
USB switches: High bandwidth (1GHz) & Low On-Resistance (5ohm)
Audio switches: Low On-Resistance (1ohm)
Support USB Type-C Audio Accessory Mode per USB Type-C Cable and Connector Specification 1.1
Low Distortion (THD: -110dB from 20Hz to 20kHz, 2.0VRMS, 32ohm load)
Negative Signal (+/-3V) Handling Capability
Programmable soft-start and soft-stop time to eliminate click/pop sounds of DC-coupled audio signals
High Off Isolation: -85dB @ 30kHz
Autonomous microphone and ground lines switching
Separate Ground switches for microphone and audio to minimize crosstalk
Wide VDD Range: 1.7V to 5.5V
ESD: 4Kv for HBM mode, 1kV for CDM mode
Extended Industrial Temperature Range: -40°C to 85°C