ISL54215 Datasheet, PDF (1/15 Pages) Intersil Corporation – MP3/USB 2.0 High Speed Switch with Negative Signal Handling and Low Power Shutdown

®
Data Sheet
November 25, 2008
ISL54215
FN6815.0
MP3/USB 2.0 High Speed Switch with
Negative Signal Handling and Low Power
Shutdown
The Intersil ISL54215 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 2.5V to 5.0V single
supply, this analog switch allows audio signal swings below
ground, allowing for the use of a common USB and audio
headphone connector in Personal Media Players and other
portable battery powered devices.
The ISL54215 logic control pins are 1.8V compatible, which
allows for control via a standard microcontroller.
The ISL54215 has an audio enable control pin to open all
switches and put the part in a low power state. In this state,
the device draws typically 1nA of current.
The ISL54215 is available in a small 10 Ld 2.1mmx1.6mm
ultra-thin µTQFN 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)”
Application Block Diagram
3.3V
Features
• High Speed (480Mbps) and Full Speed (12Mbps)
Signaling Capability per USB 2.0
• Low Distortion Negative Signal Capability
• Low Power Shutdown State
• Low Distortion Headphone Audio Signals
- THD+N at 1mW into 32Ω Load . . . . . . . . . . . . <0.013%
• Crosstalk (100kHz) . . . . . . . . . . . . . . . . . . . . . . . . . -95dB
• OFF-Isolation (100kHz) . . . . . . . . . . . . . . . . . . . . . . 95dB
• Single Supply Operation (V_DD) . . . . . . . . . . . . 2.5V to 5.0V
• -3dB Bandwidth USB Switch . . . . . . . . . . . . . . . . . 736MHz
• Available in µTQFN Package
• 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 Phones
• PDAs
• Audio/USB Switching
V_BUS
VDD
ISL54215
IN
LOGIC CONTROL
4MΩ
COM -
COM +
CTRL
4MΩ
D-
D+
L
R
GND
µCONTROLLER
USB
HIGH-SPEED
TRANSCEIVER
AUDIO
CODEC
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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