GM5621 - Dual input LCD controller for entry level applications
ST Microelectronics 2009/05/23 09:46Genesis GM5621 and GM5626 are all-in-one dual input LCD monitor controllers supporting resolutions up to SXGA/WXGA, available in a very low pin count package. GM5621/5626 leverage Genesis patented advanced image-processing technology, as well as a proven integrated ADC/PLL and an Ultra-Reliable DVI compliant digital receiver to deliver a highquality solution for mainstream analog and dual input monitors. GM5621/5626 offer new Instant Auto technology, which provides fast and accurate image alignment for both static and moving images of the analog input signal. GM5621 includes an on-chip, industry standard, dual channel LVDS transmitter and a TCON, and GM5626 includes a dual channel RSDS transmitter for direct interfacing of commercially available LVDS/RSDS LCD panel modules.
In addition, GM5621/5626 include an integrated x86 OCM with SPI compatible interface, a multicolor proportional font OSD engine, a programmable coefficient scaling engine, dual channel Schmitt and Reset circuitry. Along with high quality and reliability, GM5621/5626 also provide a very low cost system design by reducing the number of components and the reduction in the board size.
GM2621 is a pin-compatible analog derivative product with integrated ADC/PLL, but no DVI receiver.
Features
*Zoom (from VGA) and shrink (from UXGA) scaling
*Triple-channel (8-bit) ADC and PLL
*Ultra-Reliable DVI® receiver (165 MHz)—DVI 1.0-compliant
*Dual channel RSDS transmitter and TCON (GM5626 only)
*Dual channel LVDS transmitter
*Intel x86 compatible microcontroller with external SPI ROM interface
*Versatile OSD engine meets PC OEM specs
*All system clocks synthesized from a single external crystal
*Digital color controls and sRGB compliant
*10-bit panel gamma correction and high quality dithering for 8-bit and 6-bit panel interface
*DDC controller for host interface purposes
*Low bandwidth ADC for keypad interface and cable detection
*Two Pulse Width Modulation (PWM) signals for backlight and volume control
*Internal test pattern generator for factory test purposes
*Energy Spectrum Management® (ESM®)
*Instant Auto™ Image Adjustment
Application
*Mainstream analog and dual-input XGA/SXGA/WXGA LCD monitors
GM2621-LF-AA, GM2621-LF-BC, GM2621-LF-CD, GM5621-LF-AA, GM5621-LF-CD