Eindhoven, The NetherlandsRoyal Philips Electronics has launched what it claims is the first ESD protection chip to support the recently released HDMI 1.3 specification.
The IP4776CZ38 delivers up to 8-kV of ESD protection in contact mode for four HDMI transmission channels, I²C-bus, Consumer Electronics Control, and Hot Plug Detect (HPD) lines. The IP4776CZ38 is equipped with back-drive protection, as well as four bi-directional 3.3-V to 5-V level shifters for I²C, CEC and HPD signals.
Total line capacitance is only 0.7 pF, with capacitance matching of less than 0.05 pF for TMDS pairs. The IP4776CZ38's ultra-low line capacitance achieves high signal integrity for video formats such as 1080p.
The High-Definition Multimedia Interface (HDMI) is the standard digital interface for high-definition consumer electronics. HDMI 1.3 increases its single-link bandwidth from 165-MHz (4.95-Gbits/s) to 340-MHz (10.2 Gbits/s) to support the demands of future high definition display devices, such as higher resolutions, deep color and high frame rates.
For more on the standard, click here: www.hdmi.org/resourcecenter/index.asp
Tests at leading HDMI compliance centers indicate that the IP4776CZ38 supports even higher frequencies than those required for HDMI 1.3, according to the company. As a result, it can support customers' future roadmaps.
The Philips IP4776CZ38 ESD protection chip is available immediately worldwide at 97 cents each in quantities of 10,000.
Schematics of the fully integrated HDMI interface IC IP4776CZ38, including ESD protection, as well as level shifting and back-drive protection.
Further information on the ESD protection chip from Philips is available at: www.semiconductors.philips.com/pip/IP4776CZ38.html.
Royal Philips Electronics, semiconductor division sales, 1-408-474-8142, www.semiconductors.philips.com