The Intersil ISL54409 and ISL54410 are Dual SPST (Single Pole/Single Throw) switches that provide a very low distortion audio path for a stereo headphone and can be connected in a wired-OR configuration at the switch outputs with USB2. 0 HS signals for Audio/USB signal multiplexing to a common connector. The audio switch path can be disabled to provide high signal isolation, preventing crosstalk between the audio codec and USB data signals. The ISL54409 and ISL54410 analog switches are negative swing capable with a single supply voltage and maintain excellent THD performance within a signal range of -1V to +1V. The switch terminals have low pin capacitance (4pF typical), minimizing impact to USB 2. 0 High-Speed signals. The ISL54409 offers a Low Power Shutdown mode while the ISL54410 offers a High Off-Isolation mode. The ISL54410 contains active Audio Click and Pop Elimination circuitry for AC-coupled audio signals. The ISL54409 and ISL54410 are available in a 8 Ld TDFN (2mmx2mm) or a 10 Ld µTQFN (1. 8mmx1. 4mm) package. They operate over a temperature range of -40°C to +85°C.


  • Single Supply Operation (VDD): +2.7V to +5.0V
  • Negative Signal Handling (See "Audio/USB wired-OR Application" on page 8 on protecting USB controller)
  • Low OFF Capacitance for HS USB: 4pF
  • Power Off Protection
  • THD+N at 1mW into 32Ω Load: <0.02%
  • Audio Muting: >110dB
  • Low Power Consumption: 21µW with 3V supply
  • Low Power Shutdown Mode (ISL54409)
  • Active Click and Pop Elimination Circuitry (ISL54410)
  • USB VBUS Hot Plug Operation
  • Available in 8 Ld TDFN (2mmx2mm) or 10 Ld µTQFN (1.8mmx1.4mm) Package


  • Consumer Entertainment Systems
  • MP3 and other Personal Media Players
  • Cellular/Mobile Phones and PDAs

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active TDFN Reel 1000
Active uTQFN Reel 3000

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
ISL54409, ISL54410 Datasheet Datasheet PDF 736 KB
User Guides & Manuals
ISL54409EVAL1Z, ISL54410EVAL1Z User Guide Manual PDF 317 KB
PCN10114 - Part Marking Configuration Change for Intersil TDFN, uTDFN, and uTQFN Packaged Products Product Change Notice PDF 205 KB
TB363: Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs) Other PDF 293 KB
PA14042 - Minimum Line Quantity Change Product Advisory PDF 363 KB

Boards & Kits

Part Number Title Type Company
ISL54409EVAL1Z Audio/USB 2.0 Wired-OR Switch with Click and Pop Reduction Evaluation Board Evaluation Renesas
ISL54410EVAL1Z Audio/USB 2.0 Wired-OR Switch with Click and Pop Reduction Evaluation Board Evaluation Renesas