FSA4485中文资料USB-C™ Analog Audio Switch with Overvoltage Protection数据手册ONSEMI规格书

描述 Description

The FSA4485 is a high performance USB−C™ port multimedia switch to supports analog audio headsets. The FSA4485 allows sharing of the USB−C™ port to pass USB2.0 signals, analog audio, sideband use signals, and analog microphone signal. For enhanced audio performance the FSA4485 incorporates MOSFET gate drivers to support low resistance external analog ground switches. The FSA4485 features Over Voltage Protection on all connector facing
pins as well as Over Current Protection for the analog ground switch.

特性 Features

• Power Supply: VCC, 2.7V to 5.5V
• Wide range power supply
• USB High Speed Switch Bandwidth:1GHz
• Data integrity is preserved due to high bandwidth
• USB High Speed RON: 3Ω Typical
• Low RDSON for minimal insertion loss
• Audio Switch Negative Rail Capability: -3V to +3V
• Accommodates ground centered audio without impact to performance
• Audio Switch THD+N=-100 dB; 1VRMS, f=20Hz-20 kHz , 32Ω Load
• Low THD+N to ensure audio quality is preserved
• Audio RON: 1Ω Typical
• Low RDSON to minimize audio distortion
• Over Voltage Protection on Common Node Pins
• Switches are protected to avoid damage
• High Voltage Protection: 20V DC tolerance on CC_IN pins
• High voltage protection on connector side to avoid damage
• OMTP and CTIA pinout support
• Supports both headset configurations
• High Voltage Protection:16 V DC tolerance on DP_R, DN_L, GBSUx, SBUx
• High voltage protection on connector side to avoid damage
• 225mΩ (Typical) Sense to GSBUx on Resistance
• Low RDSON for sense path
• Over Current Protection for Analog Ground Switch
• Switches are protected to avoid damage
• 78mΩ (Typical) SBUx to AGND on Resistance
• Low RDSON for sense path
• Two I2C Addresses with 1.2V Interface Capablility
• I2C Flexibility
• Programmable Gate Drive for Optional External SBUx to AGND Switch
• Flexibility for gate drive
• Moisture/Resistance Detection on DP_R, DN_L and SBUx
• Moisture protection
• Analog Audio Device Unplug Detection
• Optional Normally Closed Configuration for SBU Data Switch to Support Factory Test

应用 Application

• USB-C PD Systems
• USB-C Analog Audio Solutions
• Mobile Phones
• Tablets
• Notebook PC
• Media Players

简介

FSA4485属于集成电路（IC）的模拟开关-特殊用途。由制造生产的FSA4485模拟开关 - 特殊用途特殊用途模拟开关通过固态设备路由模拟信号。该系列产品的与众不同之处在于，这些模拟开关针对特定的应用，因此具有通用模拟开关通常所没有的独特功能。