Analog Devices MAX14585 Product Info

• Low Power Consumption
  • Low Supply Current 7µA (typ)
  • Single 2.7V to 5.5V Supply Operation, V_CC
• Flexible Design
  • Dual Power-Supply Architecture, V_B and V_CC
  • ANO_ Channel Override Control Input
• High Level of Integration for Performance
  • 28V-Capable V_B Input with Automatic UNC_ Selection by V_BUS Detection
  • Low-Capacitance Hi-Speed USB for Both Channels (UNC_ and ANO_)
  • Distortion-Free Negative Signal Throughput Down to -1.8V on ANO_ Channel
  • 3Ω (typ) On-Resistance
  • 960MHz Bandwidth
  • 0.04% THD+N Audio Channel
  • ±15kV Human Body Model (HBM) ESD on COM1, COM2
• Saves Board Space
  • Internal Shunt Resistor Reduces Clicks and Pops (MAX14585)
  • 10-Pin, 1.4mm x 1.8mm UTQFN Package

The MAX14585/MAX14585A high-ESD-protected double-pole/double-throw (DPDT) switches multiplex Hi-Speed (480Mbps) USB and analog signals such as AC-coupled audio or video. These devices combine the low on-capacitance (C_ON) and low on-resistance (R_ON) necessary for high-performance switching applications in portable electronics and include an internal negative supply to pass audio signals that swing below ground down to -1.8V. The devices also handle USB low-/full-speed signaling and operate from a 2.7V to 5.5V supply.

The devices feature a V_BUS detection input (V_B) that can handle voltage up to 28V to automatically switch to the USB signal path upon detection of a valid V_BUS signal (V_B > V_VBDET). In a dead battery situation, the voltage on V_B can supply power to the part if V_B is greater than 4.5V. The MAX14585 features internal shunt resistors on the audio path to reduce clicks and pops heard at the output.

The MAX14585/MAX14585A are available in a space-saving, 10-pin, 1.4mm x 1.8mm UTQFN package and operate over the -40°C to +85°C temperature range.

Applications

• Cell Phones
• PDAs and Handheld Devices
• Tablet PCs