Overview
Description
The ISL54406 is a dual single-pole/single-throw (SPST) 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 32Ω or high impedance loads such as consumer entertainment system line-inputs, MP3 docking systems for a powered speaker or automotive entertainment system in-line or cassette interfaces. Recovery from muting is instant even with very large DC blocking capacitors. The ISL54406 also has comprehensive click and pop elimination measures to prevent these artifacts from occurring in the load due to system power-up/power-down, codec enable/disable, headphone hot plug-in, and audio muting on/off situations. The click and pop elimination is effective in 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. The ISL54406 is available in a 10 Ld TDFN (3mm x 3mm) or a tiny 10 Ld µTQFN (1.8mm x 1.4mm) ultra-thin package. It operates over a temperature range of -40 °C to +85 °C.
Features
- Single supply operation (VDD): +2.7V to +5.0V
- Negative signal swing capability: -1.5V
- Low THD
- THD+N at 1mW into 32Ω load: <0.02%
- Click and pop elimination: >60dB
- Audio muting: >110dB
- Low power consumption: 21µW with 3V supply
- Low power shutdown mode
- 1.8V logic compatible
- Available in 10 Ld TDFN (3mm x 3mm) or tiny 10 Ld (1.8mm x 1.4mm) µTQFN package
- Pb-free (RoHS compliant)
Comparison
Applications
- Consumer entertainment systems
- MP3 and other personal media players
- Cellular/Mobile phones
- PDAs
- Audio switching and muting
Documentation
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Type | Title | Date |
Datasheet | PDF 1013 KB | |
Product Advisory | PDF 414 KB | |
Product Change Notice | PDF 205 KB | |
Product Change Notice | PDF 69 KB | |
4 items
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Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
