Description

The Intersil ISL54405 is a single supply, bidirectional, dual single-pole/double-throw (SPDT) ultra low distortion, high OFF-Isolation analog switch that can pass analog signals that are positive and negative with respect to ground. It is primarily targeted at consumer and professional audio switching applications such as computer sound cards and home theater products. The inputs can accommodate ground referenced signals up to 2VRMS while operating from a single 3.3V or 5V DC supply. The digital logic inputs are 1.8V logic-compatible when using a single 3.3V or 5V supply. It can be used in both AC or DC coupled ground referenced applications.

Specifications and features

• Clickless audio switching
• 2 switches
• Switch type SPDT or 2 to 1 MUX
• 2VRMS signal switching from 3.3V or 5V supply
• -106dB THD+N into 20kΩ load at 2VRMS
• -108dB THD+N into 32Ω load at 3.9mW
• Signal to noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . >124dBV
• ±0.01dB insertion loss at 1kHz, 20kΩ load
• ±0.007dB gain variation 20Hz to 20kHz
• 125dB signal muting into 20kΩ load
• 90dB PSRR 20Hz to 20kHz
• Single supply operation . . . . . . . . . . . . . . . . . . . . . . . . . 3.3V or 5V
• Available in 16 Ld TSSOP, 16 Ld TQFN, and 16 Ld µTQFN
• Pb-Free (RoHS compliant)

Application Scenarios

• Computer sound cards
• Home theater audio products
• SACD/DVD audio
• DVD player audio output switching
• Headsets for MP3/cellphone switching
• Hi-Fi audio switching application