Product category:
Communications ICs (Wired)
News Release from: Fairchild Semiconductor | Subject: FSUSB23
Edited by the Electronicstalk Editorial
Team on 13 September 2005
Small claims for USB 2.0 switch
The FSUSB23 is billed as the smallest single-port USB 2.0 High-Speed analogue switch in a MicroPak chip scale package.
New from Fairchild Semiconductor, the FSUSB23 is billed as the smallest single-port USB 2.0 High-Speed (480Mbit/s) analogue switch in a MicroPak chip scale package (CSP) Its compact packaging, combined with very low power consumption (below 1uA) and wide bandwidth (above 720MHz) operation, make it an ideal high-performance, space-saving USB 2.0 switch for today's multi-functional cellphones
This article was originally published on Electronicstalk on 28 Feb 2001 at 8.00am (UK)
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Fairchild's 1.6 x 2.1mm MicroPak 10-terminal chip scale package delivers a 68% footprint reduction compared with typical competing switches (3.36 compared with 10.5mm2).
Additional applications for the FSUSB23 include PDAs, MP3 players, digital cameras and laptops.
The FSUSB23's ability to switch High-Speed USB signals allows it to comfortably pass the eye diagram compliance for AC and DC performance to meet the USB 2.0 high-speed standard.
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It also retains complete USB 1.1 full-speed (12Mbit/s) reverse compatibility for use in a range of applications.
"Signal integrity and low power consumption are especially critical considerations in cellphone applications", said Jerry Johnston, Fairchild Product Manager for Analog Switches.
"The FSUSB23's wide bandwidth meets these concerns by easily passing 3rd order harmonic frequencies with virtually undetectable levels of distortion and jitter".
"Additionally, the convergence of more features and connectivity into increasingly smaller ultraportables is driving the demand for High-Speed USB switches in the smallest available packages".
"The combined performance attributes and ultra-compact packaging of the FSUSB23 offer designers the flexibility they need to solve their design challenges".
Other key design features of the FSUSB23 include: higher 7kV electrostatic discharge (ESD) withstand compared with typically 2kV in competing components provides greater application robustness; 6ohm typical on-resistance improves noise margin; nonadjacent channel crosstalk (-43dB at 250MHz) minimises signal interference; and a choice of 16-terminal DQFN package offers better suitability for notebooks and other larger portable applications.
The FSUSB23 complements Fairchild's expanding line of high-performance USB switch solutions providing the industry's best combination of wide bandwidth, high signal quality and compact packaging.
Other USB-compliant products include the FSUSB22, a low-power two-port analogue switch also for High-Speed USB compliance, and the FSUSB11, a low-power, single-port Full-Speed USB switch.
The lead (Pb)-free FSUSB23 meets or exceeds the requirements of the joint IPC/JEDEC standard J-STD-020B and is compliant with European Union requirements.
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