GENESIS MICROCHIP Pegasus Multimedia CRT B0056-PBR-02C April 2000 MULTIMEDIA COMPUTER MONITOR VIDEO PROCESSOR BOARD Product Brief Features Description * Genesis gmVLX1A-X proprietary high quality video scaling and de-interlacing including AFM, vertical/temporal (VT) and static mesh processing. * Genesis gmAFMC Adaptive Film Mode (AFM) processing. * Techwell TW98 video composite/YC baseband NTSC/PAL formats. decoder accepts video inputs in * On board tuner demodulates off-air RF NTSC System M/N inputs. * Supports 640x480 VGA, 800x600 SVGA and 1024x768 XGA analog RGB outputs. Suitable as video processor for multiple frequency capable computer monitors. * Stereo audio inputs/outputs. * Text/icon based On-screen Display (OSD) menu system provides user control of source selection, image parameters, audio levels etc. * 8-bit 8051-based MCU for system control. * Infrared remote control receiver. Applications * Multimedia computer monitors The Genesis Microchip Pegasus Multimedia Monitor Video Processor Board provides the video processing functions for a high quality, low cost multimedia computer monitor. Utilizing the Genesis gmVLX1A-X and gmAFMC ICs, the system de-interlaces and scales interlaced video for viewing on a multiple frequency capable computer CRT. NTSC and PAL composite and S-video (YC) baseband video inputs are decoded by the TW98. The TW98's two 10-bit A/D converters and signal processing controls enhance the detail of video signals to compensate for VCR or TV tuner picture degradation. An onboard tuner demodulates RF System M (NTSC) inputs for off-air reception. Pegasus Multimedia provides 640x480 VGA, 800x600 SVGA or 1024x768 XGA RGB analog outputs. User control is provided by a keypad (or optional IR remote) and an on-screen display (OSD) menu system. Selection of the output resolution is via the OSD. The user also has control of image contrast, brightness, sharpness, audio volume/mute, channel selection etc. via OSD menus controlled by an 8-bit system MCU and a dedicated OSD generator. The system MCU provides input mode monitoring, system initialization, keypad scanning, infrared remote (IR) support etc. The on-board ICs, including an RF tuner, OSD controller, TW98 video decoder and gmVLX1A-X scaler/de-interlacer are controlled by the system MCU via a serial communications interface. Genesis Microchip 165 Commerce Valley Dr. West, Thornhill, ON Canada L3T 7V8 Tel: (905) 889-5400 Fax: (905) 889-0035 2150 Gold Street, Alviso, CA USA 95002 Tel: (408) 262-6599 Fax: (408) 262-6365 www.genesis-microchip.com / info@genesis-microchip.com Multimedia Monitor Video Processor Product Brief B0056-PBR-02C Multimedia Monitor Processor Block Diagram 1x SGRAM Video In YC P1 Tuner P2 2:1 mux Comp/Y Video Decoder RGB 16 H/V CLK 24 B 48:24 Mux 24 A gmVLX1A-X DCLK HS VS DV HBLK VBLK Serial I/O P12 A/B 3 VGA RGB P 5 Audio L CLK HS VS OSC gmAFMC P 6 Audio R FBKGC OSD (MC141584) Serial I/O Serial I/O RF P7 (TV/FM) TV/FM Tuner (Temic 3X7246) L 2:1 Mux Audio Amp L P 8 Left Audio R P 9 Right Audio R Backlight Enable P11 Keypad P13 LCD Backlight Serial I/O Serial I/O +12V Keypad 8051 Serial I/O GPIO Debug I/F EEPROM Serial I/O IR Rcvr P10 Power Supply +12 V +3.3V +5V Serial I/O OSC Page 2 of 3 Multimedia Monitor Video Processor Product Brief B0056-PBR-02C Multimedia Monitor Supported Inputs BASEBAND VIDEO INPUT Analog Video Input (1) Signal Format Horiz. Freq. (kHz) 4:3, 16:9 Composite/YC NTSC 4:3, 16:9 Composite/YC PAL 15.734 Vertical Freq. (Hz) 59.940 15.625 50.000 Decoded Digital Video Active Resolution Total (Pixels x lines @ Field/Frame (Pixels x Rate, Hz) Lines) 720x240 @ 59.94 I 858x525 720x288 @ 50 I 864x625 Pixel Clock (MHz) 13.500 13.500 RF VIDEO INPUT Analog Video Input Signal Format Freq. (MHz) RF Modulated System M 55.25801.25 Channels 2-69 VHF-UHF Demodulated Video Horiz. Freq. (kHz) 4:3.16:9 Composite NTSC 15.734 Signal Format Vertical Freq. (Hz) 59.940 FM INPUT Audio Input Signal Format Freq. (MHz) FM Radio Broadcast 76.0-108.0 Demodulated Audio Freq. Response Stereo L & R outputs 20-18 kHz Signal Format NOTES : 1. For each SD signal format, 4:3 & 16:9 aspect modes indistinguishable. User selection required. 16:9 input is 16:9 letterbox on 4:3 raster. Multimedia Monitor Supported Output Display Formats Resolution VGA SVGA XGA PROGRESSIVE TELEVISION Signal Format Active Resolution (Pixels x lines @ Field/Frame Rate, Hz) RGB 640x480 @ 59.94 RGB 800x600 @ 59.94 RGB 1024x768 @ 59.94 Horiz. Freq. (kHz) 31.469 37.879 48.363 Vertical Freq. (Hz) 59.94 59.94 59.94 Page 3 of 3