ISL54217_14 Datasheet, PDF (1/24 Pages) Intersil Corporation – USB 2.0 High-Speed x 2 Channels/Stereo Audio Dual SP3T (Dual 3-to-1 Multiplexer)

USB 2.0 High-Speed x 2 Channels/Stereo Audio
Dual SP3T (Dual 3-to-1 Multiplexer)
ISL54217
Features
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*(see page 22)
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)
• 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*(see page 22)
• MP3 and other Personal Media Players
• Cellular/Mobile Phone
Application Block Diagram
3.3V
µCONTROLLER
USB
HIGH-SPEED
TRANSCEIVER
AUDIO
CODEC
USB
HIGH-SPEED
TRANSCEIVER
ISL54217
2D-
2D+
VDD
LOGIC CONTROL
C0
4MΩ ^C1
COM -
L
CLICK/
R _POP
1D-
1D+
50kΩ
1kΩ
50kΩ
GND
COM +
1kΩ
V_BUS
June 17, 2010
FN6817.4
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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