Allows smartphones and other portable consumer electronics to connect with HD televisions for high speed content sharing
ON Semiconductor has introduced a 3:1 high speed USB switch – NCN1188 – to support the new Mobile High Definition Link (MHLTM) interface standard for High Definition (HD) video and digital audio.
The switch, with its integrated MHLTM support, allows smartphones and other portable consumer electronics to connect with HD televisions for high speed content sharing.
Two dedicated high-speed data paths can handle HD video transfer up to 720 progressive scan at 60 frames per second (fps) and 1080 interlaced at 30 fps.
A multi-purpose audio path, with true-ground capability down to -2 volts (V), supporting generic micro-USB headsets, is also included, making this the first audio capable MHLTM switch to enter the market.
Using the NCN1188 device allows modern portable equipment to share a single Universal Serial Bus (USB) 2.0 or USB 3.0 receptacle for transmitting and receiving paired signals from up to three separate locations.
Each of these three differential channels is fully compliant with the USB 2.0 (high speed), USB 1.1 (full speed) and USB 1.0 (low speed) standards, as well as any generic universal asynchronous receiver/transmitter (UART) protocol.
Drawing a current of just 23 microamperes (uA), the NCN1188, with an operating voltage range of 2.7 V to 5.5 V, can be supplied from a single Li-Ion battery or any protected 5 V rail.
Its typical on capacitance (CON) is just 4.5 picoFarad (pF) and its typical off capacitance (COFF) is only 3 pF.
It has a -40 to 125 °C operating junction temperature range.
ON Semiconductor Consumer Products VP Simon Keeton said by specifying the NCN1188, OEMs of next generation cell phones, digital cameras and tablets will be able to offer their customers new levels of media rich connectivity.
