廬
ISL54415, ISL54416, ISL54417
Data Sheet
June 27, 2006
FN6318.1
Low Voltage, Dual SPDT, USB/CVBS/
Audio Switches with Negative Signal
Capability
The Intersil ISL54415, ISL54416, ISL54417 dual SPDT
(Single Pole/Double Throw) switches combine low distortion
audio/video and accurate USB 2.0 Full Speed data signal
switching in the same low voltage device. When operated with
a 2.5V 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 ISL54415 and ISL54416 incorporate circuitry for
detection of the USB V
BUS
voltage, which is used to switch
between the audio/video and USB signal source in the
portable device. In addition, the ISL54415 includes circuitry for
generation of a V
TERM
voltage of 3.3V for use with USB
speed setting pull-up resistor.
The ISL54415, ISL54416, ISL54417 are available in a tiny
10Ld 2.1mm x 1.6mm ultra-thin
渭
TQFN package. They
operate over a temperature range of -40 to +85擄C.
Features
鈥?Low Distortion Negative Signal Capability
鈥?Detection of V
BUS
Voltage on USB Cable (ISL54415 and
ISL54416)
鈥?Generation of V
TERM
Voltage for USB D+/D- Pull-up
Resistor (ISL54415)
鈥?Low Distortion Mono Audio Signal
- THD+N at 12mW into 32惟 Load . . . . . . . . . . . <0.007%
鈥?Low Distortion Color Video Signal
- Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . 0.04%
- Differential Phase. . . . . . . . . . . . . . . . . . . . . . . . . . 0.03擄
鈥?Cross-talk (4MHz) . . . . . . . . . . . . . . . . . . . . . . . . . . -60dB
鈥?1.8V Logic Compatible (ISL54417)
鈥?Single Supply Operation (V
DD
)
- ISL54415 and ISL54416 . . . . . . . . . . . . . . 2.5V to 3.6V
- ISL54417 . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8V to 5.5V
鈥?Available in Ultra-thin
渭
TQFN Package
鈥?Pb-Free Plus Anneal Available (RoHS Compliant)
Related Literature
鈥?Technical Brief TB363 鈥淕uidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)鈥?/div>
鈥?Application Note AN557 鈥淩ecommended Test Procedures
for Analog Switches鈥?/div>
Applications
鈥?Digital Camera and Camcorders
鈥?Video MP3 and other Personal Media Players
鈥?Cellular/Mobile Phones
鈥?PDA鈥檚
鈥?Audio/Video/USB Switching
Application Block Diagram
V
DD
V
TERM
ISL54415
USB AND AUDIO/VIDEO JACK
V
BUS
NO1
COM1
NO2
D-
D+
USB
FULL-SPEED
TRANSCEIVER
COM2
NC1
NC2
NTSC OR PAL
VIDEO
AUDIO
GND
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
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Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
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