DATASHEET
ISL54210 FN6661
Rev 2.00
March 18, 2010 MP3/USB 2.0 High Speed Switch with Negative Signal Handling/Click and Pop
Suppression
The Intersil ISL54210 dual SPDT (Single Pole/Double
Throw) switch combines 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 belowground, allowing the use of a common USB and audio
headphone connector in Personal Media Players and
other portable battery powered devices. Features The ISL54210 incorporates circuitry for the detection
of the USB VBUS voltage, which is used to switch
between the audio and USB signal sources. Low Distortion Headphone Audio Signals High Speed (480Mbps) and Full Speed (12Mbps)
Signaling Capability per USB 2.0 Detection of VBUS Voltage on USB Cable Low Distortion Negative Signal Capability Clickless/Popless Audio Switches Enable Pin to Open all Switches
-0.014% THD+N at 1mW into 32пЃ—пЂ Load -100dB Crosstalk (20Hz to 20kHz) It has an enable pin (CTRL) to open all switches and
activate the audio click/pop (C/P) circuitry. The high
off-isolation and special C/P circuitry of the audio
switches eliminates click and pops in the head-phones
when the audio CODEC drivers are powering up/down
or when a headphone is inserted or removed from the
jack. 95dB Off-Isolation (20Hz to 100kHz) 2.7V to 3.6V Single Supply Operation (VDD) 700MHz of -3dB Bandwidth USB Switch 4.2pF of low ON Capacitance @ 240MHz Available in ВµTQFN and TDFN Packages Compliant with USB 2.0 Short Circuit …
