South Portland, MaineFairchild Semiconductor Corp. is calling its FSUSB23 the smallest single-port USB 2.0 Hi-Speed analog switch in a MicroPak chip-scale package (CSP).
Designed for cell phones, PDAs, MP3 players, digital cameras, and laptops, the FSUSB23 consumes less than 1-µA of power and offers wide bandwidth operation at more than 720-MHz.
The FSUSB23 features very low quiescent current, even when the control voltage is lower than the VCC supply. As a result, the device can directly interface with the baseband processor, making it suitable for mobile handset applications.
"Signal integrity and low power-consumption are especially critical considerations in cell phone 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."
At 3.36-mm², the FSUSB23's 1.6-mm X 2.1-mm MicroPak 10-terminal chip scale package is said to offer a 68% footprint reduction compared with competitive switches that measure 10.5-mm².
The FSUSB23's ability to switch Hi-Speed USB signals allows it to pass the eye diagram compliance for AC and DC performance to meet the USB 2.0 high-speed standard. It also retains complete USB 1.1 full speed (12-Mbits/s) reverse compatibility.
The FSUSB23 also offers higher 7-kV electrostatic discharge (ESD); 6-Ohms of typical on-resistance, which improves noise margin; and non-adjacent channel crosstalk of -43kB at 250-MHz, which minimizes signal interference.
The device can be packaged in either the Pb-Free, 10-lead MicroPak described above, or a Pb-Free 16-lead DQFN. In either configuration, the device is priced at 97 cents each in 1,000-piece quantities. It is available in production quantities with a lead time of four weeks.
For more information, click here for the product's datasheet: www.fairchildsemi.com/ds/FS/FSUSB23.pdf.
Fairchild Semiconductor Corp., 1-207-775-8100, www.fairchildsemi.com.