| Intersil New Product Information |
ISL54400, ISL54401, ISL54402 Low Voltage, Dual SPDT, USB/Audio Switches with Negative Signal Capability
Product Description:
The ISL54400, ISL54401, ISL54402 are Dual 2:1 Multiplexers that switch between Data signals and Audio signals.
Detailed Description:
The Intersil ISL54400, ISL54401, ISL54402 dual 2:1 Multiplexers combine low distortion audio and accurate USB 2.0 Full Speed data signal switching in the same low voltage device. When operated with a 2.5V to 3.6V single supply these analog switches allow audio signal swings below-ground, allowing the use of a common USB and audio headphone connector in Personal Media Players and other portable battery powered devices.
The ISL54400 and ISL54401 incorporate circuitry for detection of the USB VBUS voltage, which is used to switch between the audio and USB signal source in the portable device. In addition, the ISL54400 includes circuitry for generation of a VTERM voltage of 3.3V for use with USB speed setting pull-up resistor.
The ISL54400, ISL54401, ISL54402 are available in 10 Ld 3mm x 3mm TDFN and 10 Ld tiny 2.1mm x 1.6mm ultra-thin µQFN packages. They operate over a temperature range of -40 to
+85°C.
Features
| Features |
Benefits |
| Combined Data and Audio switches |
Eliminates either the USB or the headphone connector. Saves cost |
| Automatic selection of VBUSS voltage for USB operation |
Protects against damage from cable bound transients |
| VTERM generated from VBUSS voltage |
Prevents battery discharge by powered down host |
| Handles negative audio signal swings |
Operates with codecs having “Direct-Drive” or capacitively coupled outputs |
| Ultra low distortion audio path |
Improves listening experience. Boosts brand quality |
| Detects presence of USB |
Eliminates external components |
| µTQFN Packaging available |
Save 67% board area compared with QFN |
| High ESD capability on outputs |
Improves reliability |
|
- Pb-Free Plus Anneal Available (RoHS Compliant)
Applications:
- MP3 and other Personal Media Players
- Cellular/Mobile Phones
- PDA’s
- USB Switching
- Audio/USB Switching
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