廬
ISL54207
Data Sheet
December 5, 2006
FN6403.0
Low Voltage, Dual SPDT, USB/CVBS/
Audio Switches, with Negative Signal
Capability
The Intersil ISL54207 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 ISL54207 incorporates circuitry for detection of the USB
V
BUS
voltage, which is used to switch between the
audio/video and USB signal sources in the portable device.
The part has a control pin to open all the switches and put the
part in a low power down state.
The ISL54207 is available in a small 10 Ld 2.1mm x 1.6mm
ultra-thin
渭
TQFN package and a 10Ld 3mm x 3mm TDFN
package. It operates over a temperature range of -40 to
+85擄C.
Features
鈥?High Speed (480Mbps) Signaling Capability per USB 2.0
鈥?Low Distortion Negative Signal Capability
鈥?Detection of V
BUS
Voltage on USB Cable
鈥?Control Pin to Open all Switches and Enter Low Power
State
鈥?Low Distortion Mono Audio Signal
- THD+N at 20mW into 32惟 Load . . . . . . . . . . . . . <0.1%
鈥?Low Distortion Color Video Signal
- Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . 0.28%
- Differential Phase. . . . . . . . . . . . . . . . . . . . . . . .0.04deg
鈥?Cross-talk (4MHz) . . . . . . . . . . . . . . . . . . . . . . . . . . -78dB
鈥?Single Supply Operation (V
DD
) . . . . . . . . . . . . 2.7V to 3.6V
鈥?-3dB Bandwidth USB Switch . . . . . . . . . . . . . . . . . 630MHz
鈥?Available in
渭
TQFN and TDFN Packages
鈥?Pb-Free Plus Anneal Available (RoHS Compliant)
鈥?Compliant with USB 2.0 Short Circuit Requirements
Without Additional External Components
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
VDD
VBUS
USB and AUDIO/VIDEO JACK
ISL54207
CTRL
LOGIC CIRCUITRY
渭
CONTROLLER
22k惟
COM1
4M惟
4M惟
NO1
NO2
50k惟
NC1
NC2
50k惟
D-
D+
USB
HIGH-SPEED
TRANSCEIVER
COM2
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
|
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.
next