ISL54208 Datasheet, PDF (1/15 Pages) Intersil Corporation – Low Voltage, Dual SPDT, USB/CVBS/ Audio Switches, with Negative Signal Capability

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Data Sheet
December 18, 2006
ISL54208
FN6410.0
Low Voltage, Dual SPDT, USB/CVBS/
Audio Switches, with Negative Signal
Capability
The Intersil ISL54208 dual SPDT (Single Pole/Double
Throw) switches combine low distortion audio/video and
accurate USB 2.0 high speed (480Mbps) data signal
switching in the same low voltage device. When operated
with a 2.7V to 3.6V single supply these analog switches
allow audio/video signal swings below-ground, allowing the
use of a common USB and audio/video connector in digital
cameras, camcorders and other portable battery powered
Personal Media Player devices.
The ISL54208 logic control pins are 1.8V logic compatible
which allows control via a standard μcontroller. With a VDD
voltage in the range of 2.7V to 3.6V the IN pin voltage can
exceed the VDD rail allowing for the USB 5V VBUS voltage
from a computer to directly drive the IN pin to switch
between the audio/video and USB signal sources in the
portable device. The part has an enable control pin to open
all the switches and put the part in a low power state.
The ISL54208 is available in a small 10 Ld 2.1mmx1.6mm
ultra-thin μTQFN package and a 10 Ld 3mmx3mm TDFN
package. It operates over a temperature range of -40 to
+85°C.
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
• Application Note AN557 “Recommended Test Procedures
for Analog Switches”
Application Block Diagram
Features
• High Speed (480Mbps) Signaling Capability per USB 2.0
• Low Distortion Negative Signal Capability
• Control Pin to Open all Switches and Enter Low Power
State
• Low Distortion Mono Audio Signal
- THD+N at 20mW into 32Ω Load . . . . . . . . . . . . . <0.1%
• Low Distortion Color Video Signal
- Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . 0.28%
- Differential Phase. . . . . . . . . . . . . . . . . . . . . . . . . . 0.04°
• Cross-talk NCx Channels (4MHz) . . . . . . . . . . . . . . -78dB
• Single Supply Operation (V_DD) . . . . . . . . . . . . 1.8V to 5.5V
• -3dB Bandwidth USB NOx Switches . . . . . . . . . . . 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
Applications
• Digital Camera and Camcorders
• Video MP3 and other Personal Media Players
• Cellular/Mobile Phones
• PDA’s
• Audio/Video/USB Switching
VBUS
IN
COM1
VDD
ISL54208
LOGIC CIRCUITRY
4MΩ
CTRL
NO1
NO2
COM2
50kΩ NC1
NC2
50kΩ
GND
μCONTROLLER
D-
USB
HIGH-SPEED
D+
TRANSCEIVER
NTSC or PAL
VIDEO
AUDIO
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Copyright Intersil Americas Inc. 2006. All Rights Reserved
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