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Video ICs support HDTV resolutions up to 1080p

Posted: 24 Mar 2011     Print Version  Bookmark and Share

Keywords:video IC  video encoder 

Chrontel's three low-power mixed-signal CH7033, CH7034 and CH7035 video ICs convert and transmit a variety of digital video formats for external displays, digital televisions and embedded display panels targeting mobile Internet devices, netbook systems, tablet computers, portable e-book readers and smartphones.

The ICs are designed specifically to interface with a wide range of host processors, including popular ARM mobile processors.

The CH7033 is a video encoder designed to drive external high-definition video displays using HDMI, DVI, YPbPr and VGA. The HDMI/DVI output pins on the CH7033 can be multiplexed with VGA/YPbPr outputs via a software controlled switch. The CH7034 is designed for mobile systems that require LVDS encoding for embedded displays that are attached to a portable device through a hinge. The CH7034 also offers simultaneous external analogue RGB or component YPrPb outputs for HDTV and VGA displays. The CH7035 is a cost effective HDMI transmitter.

All three devices have a scaling engine that supports HDTV resolutions up to 1080p, and all three incorporate frame rate conversion that support 60fps refresh rates at 1080p. The CH7033 and CH7035 also include SPDIF and I2S digital audio output.

The IC devices are designed to integrate with the wide variety of SoC (system-on-chip) processors found in netbooks, smartphones, tablets and mobile systems. The CH7033/34/35 devices accept graphical data input through a programmable 24bit/18bit/16bit/15bit/12bit/8bit interface that supports RGB and YCbCr video formats in a range of input resolutions up to 1366x768. They incorporate an SDRAM internal frame buffer that enables image upsizing/downsizing, zooming and 90/180/270 image rotation.

Samples of the CH7033, CH7034, CH7035 devices are currently available and production volumes will be available in May, 2011. All three devices are available in an 88-pin QFN package. The CH7035 is also available in an 81-pin BGA package. The CH7033/34/35 devices are respectively priced at Rs.188.75 ($4.15), Rs.181.92 ($4) and Rs.175.10 ($3.85)/each in 10,000 piece quantities.





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