DATASHEET
ISL54406 FN6578
Rev 1.00
July 14, 2010 Stereo Click and Pop Eliminator with Audio Muting Features The ISL54406 is a Dual SPST (Single Pole/Single
Throw) switch that provides a very low distortion
audio path for a stereo headphone or high impedance
line-in load. This path can be interrupted to provide
>110dB of off-isolation for signal muting purposes
into 32пЃ— or high impedance loads such as consumer
entertainment system line-inputs, MP3 docking
systems for powered speaker or automotive
entertainment system in-line or cassette interfaces.
Recovery from muting is instant even with very large
DC blocking capacitors. Single Supply Operation (VDD) . +2.7V to +5.0V Negative Signal Swing Capability -1.5V Low THD
-THD+N at 1mW into 32пЃ—пЂ Load . <0.02% Click and Pop Elimination >60dB Audio Muting . >110dB Low Power Consumption 21ВµW with 3V supply Low Power Shutdown Mode The ISL54406 also has comprehensive Click and Pop
elimination measures to prevent these artifacts from
occurring in the load due to system power-up/powerdown, codec enable/disable, headphone hot plug in,
and audio muting on/off situations. The Click and Pop
elimination is effective into low and high impedance
loads and requires no external timing components to
deal with DC blocking capacitors placed between the
single supply codec and the load. 1.8V Logic Compatible Available in 10 Ld TDFN (3mmx3mm) or tiny
10 Ld (1.8mmx1.4mm) ВµTQFN Package Pb-Free (RoHS Compliant) Applications Consumer Entertainment Systems MP3 and other Personal Media Players The ISL54406 is available in a 10 Ld TDFN …