Milpitas, Calif. Providing PC OEMs with a lower cost ESD solution for VGA ports, California Micro Devices' new CM2010 Application Specific Integrated Passive (ASIP) device packs several benefits and functions into a small package. In addition to offering 8 kV electrostatic discharge (ESD) protection and integrating nine discrete components into a single chip and, the new ASIP device provides sync line buffering, level-shifting and impedance matching for VGA port applications.
This is the industry's first device to provide industry standard levels of ESD protection for the VGA RGB output pins, along with buffer drivers for the VSYNC and HSYNC outputs in a single chip solution, according to the company. It's also at a price point optimized for low-cost systems particularly cost-sensitive segments of the notebook and desktop PC markets. These can also be used in graphics cards, set-top boxes and other platforms with VGA and/or DVI-I outputs.
The company explained that lower cost PC systems typically use low-cost discrete interface solutions but they often fail to provide ESD protection at industry specified levels. Thus, by integrating nine discrete analog and passive components into a single chip, the CM2010 offers better performance at a lower price point than discrete implementations.
Packaged in a small 10-lead MSOP, the CM2010 connects between the video graphics controller and the VGA port connector. It integrates ESD protection for three VGA RGB output signals using low capacitance (4pF) current steering diodes. These diodes are designed to handle the high current spikes specified by IEC-61000-4-2 Level-4 (8kV contact discharge).
Two 3.3 or 5V 24 mA non-inverting drivers provide buffering for HSYNC and VSYNC signals compatible with VESA Video Signal Standard (VSIS) version 1, Rev. 2. These buffers accept low voltage input levels and convert them to CMOS output levels that swing between ground and VCC. VCC is typically 5V for legacy VESA compatibility, but the CM2010 can also be operated at 3.3 V. The driver output impedance can be adjusted via external series resistors over the range of 15 ohms to 100 ohms. The device is available in both eutectic and lead-free versions.
Pricing starts at $0.37 each in quantities of 10,000. Samples are available. Production is scheduled for fourth quarter 2004.
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