ISL54217_09 Datasheet, PDF (1/21 Pages) Intersil Corporation – USB 2.0 High-Speed x 2Channels/Stereo Audio Dual SP3T (Dual 3-to-1 Multiplexer)

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Data Sheet
May 4, 2009
ISL54217
FN6817.3
USB 2.0 High-Speed x 2Channels/Stereo
Audio Dual SP3T (Dual 3-to-1 Multiplexer)
The Intersil ISL54217 is a single supply dual SP3T analog
switch that operates from a single supply in the range of 2.7V
to 4.6V. It was designed to multiplex between audio stereo
signals and two different USB 2.0 high speed differential data
signals. The audio channels allow signal swings below
ground, allowing the multiplexing of voice and data signals
through a common headphone connector in Personal Media
Players and other portable battery powered devices.
The audio switch cells can pass ±1V ground referenced audio
signals with very low distortion (<0.03% THD+N when driving
5mW into 32Ω loads). The USB switch cells have very low
ON-capacitance (8pF) and high bandwidth to pass USB high
speed signals (480Mbps) with minimal edge and phase
distortion.
The ISL54217 is available in a tiny 12 Ld 2.2mmx1.4mm ultra
thin QFN and a 12 Ld 3mmx3mm TQFN package. It operates
over a temperature range of -40°C to +85°C.
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
Features
• High Speed (480Mbps) and Full Speed (12Mbps)
Signaling Capability per USB 2.0
• Low Distortion Negative Signal Capability Audio Switches
• Clickless/Popless Audio Switches
• Power OFF Protection
• COM Pins Overvoltage Tolerant to 5.5V
• Low Distortion Headphone Audio Signals
- THD+N at 5mW into 32Ω Load . . . . . . . . . . . . . <0.03%
• Crosstalk (100kHz) . . . . . . . . . . . . . . . . . . . . . . . . . -98dB
• OFF-Isolation (100kHz) . . . . . . . . . . . . . . . . . . . . . 95.5dB
• Single Supply Operation (V_DD) . . . . . . . . . . . . 2.7V to 4.6V
• -3dB Bandwidth USB Switches . . . . . . . . . . . . . . . 700MHz
• Available in Tiny 12 Ld µTQFN and TQFN Packages
• Compliant with USB 2.0 Short Circuit Requirements
Without Additional External Components
• Pb-Free (RoHS Compliant)
Applications
• MP3 and other Personal Media Players
• Cellular/Mobile Phone
Application Block Diagram
3.3V
USB
HIGH-SPEED
TRANSCEIVER
AUDIO
CODEC
USB
HIGH-SPEED
TRANSCEIVER
µCONTROLLER
VDD
ISL54217
C0
LOGIC CONTROL
4MΩ ^C1
2D-
V_BUS
2D+
COM -
L
CLICK/
R _POP
1D-
1kΩ
1D+
50kΩ
50kΩ
GND
COM +
1kΩ
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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