ISL54205A
MP3/USB 2.0 High Speed Switch with Negative Signal Handling
Not Recommended for New Designs.
Recommended Replacement Part ISL54205B.
Typical Diagram
Key Features
- High Speed (480Mbps) Signaling Capability per USB 2.0
- Low Distortion Negative Signal Capability
- Detection of VBUS Voltage on USB Cable
- Control Pin to Open all Switches and Enter Low Power State
- Low Distortion Headphone Audio Signals
- THD+N at 20mW into 32Ω Load <0.1%
- Cross-talk (20Hz to 20kHz) -110dB
- Single Supply Operation (VDD) 2.7V to 3.6V
- -3dB Bandwidth USB Switch 630MHz
- Available in µTQFN and TDFN Packages
- Pb-Free Plus Anneal (RoHS Compliant)
- Compliant with USB 2.0 Short Circuit Requirements Without Additional External Components
Description
The Intersil ISL54205A dual SPDT (Single Pole/Double Throw) switches combine low distortion audio and accurate USB 2.0 high speed data (480Mbps) signal switching in the same low voltage device. When operated with a 2.7V 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 ISL54205A incorporates circuitry for detection of the USB VBUS voltage, which is used to switch between the audio and USB signal sources in the portable device. The part has a control pin to open all the switches and put the part in a low power down state.
The ISL54205A is available in a small 10 Ld 2.1mm x 1.6mm ultra-thin µTQFN package and a 10Ld 3mm x 3mm TDFN package. It operates over a temperature range of -40°C to +85°C.
Applications
- MP3 and Other Personal Media Players
- Cellular/Mobile Phones
- PDA's
- Audio/USB Switching
