WILLSEMI WAS4766C-9/TR

The WAS4766C is a cross-point switch that is used to interchange the Ground and MIC connections on a headphone connector. The Ground switch has an ultra-low Ron of 60mΩ (typical) to minimize voltage drop across it, preventing undesired increase in headphone ground reference voltage. The switch state is controlled via the SEL input. Furthermore, a GND sense path supports quasi-differential amplifier architectures. When SEL = High, GND is connected to CON2 and MIC is connected to SNS1; When SEL = Low, GND is connected to CON1 and MIC is connected to SNS2. An internal pull-down 2MΩ resistor on SEL input sets the default state of the switch. The WAS4766C is available in WLCSP-9L package. Standard product is Pb-Free and halogen-Free.

• Supply voltage: 2.5~4.5V
• ultra-low Ron for GND Switch: 60mΩ
• low Ron for MIC Switch: 3.5Ω
• Break-Before-Make Switching
• Low quiescent current over an Expanded Control Input Range
• ESD Rating (HBM JEDEC: JESD22-A114)
  • IO to GND: ±8KV
  • Power to GND: ±5KV

• Cell phone
• Tablet
• Others Music Players