MPEG-4/2/1 Audio/Video Encoder Part Number: AL9V576 AL242 Video Decoder Video Processing DVD Player • • • • • • • Supports Real-time MPEG-1, MPEG-2 (ML), and MPEGB-4 (ASP) encoding Supports resolution from QCIF to full D1 output Programmable bit rate from 500Kbps to 20Mbps I, IP, IBP, and IBBP frame encoding supported Automatic 3:2 pull-down detection Supports Speckle & Recursive noise reduction Horizontal/Vertical video cropping 2D-Comb Video Decoder www.averlogic.com Audio ADC Part Number: AL242 AL9V576 MPEG-4/2/1 A/V Encoder 4 analog Video Input/ 8-bit YCbCr 4:2:2 Output PC • • Application Diagram • • • Audio Processing • • Decoding & Timing Control MPEG-1 layer 2 encoding Supports sampling rate at 32K, 44.1K or 48K Hz • • • • System Processing • • • • Multiplexing of video and audio steams output with MPEG-2 ISO13818-1 standard compliant Supports VBI data insertion and extraction Supports A/V Elementary Stream (ES), MPEGB-1 System Stream, MPEGB-2 Program/Transport Stream (PS/TS), and MPEGB-4 Elementary Stream (ES), etc. • • • • • Supports digital 8-bit ITU-R BT656 format input Supports Left-justified digital audio input 8-bit 8051, 16-bit Intel-style, 8/16-bit SRAM host bus interface 1/8-bit encoded bit stream bus output Supports 2-wire serial bus (master mode) Ordering Information Part No. Package AL9V576B-PF-PBF 160-LQFP Power +1.8V/3.3V Adaptive 2D-comb filter for NTSC&PAL Y/C separation Line-locked system clock frequencies Decodes weak and noisy off-air signals Superior frequency response preserves fine details Auto detect and locks VCR trick modes Brightness & Color Control/ Filtering A L9V576/AL242 Reference Design Board Bus Interface Decodes NTSC/PAL/SECAM composite, SVideo or component video input Four analog inputs, standard ITU656 Y CbCr 4:2:2 format (8/16bit) digital output Supports digital automatic gain control (AGC) Supports all variation of the NTSC and PAL standard – (I,B,G,H,D,N,M & combination N) Hardwire pins control of channel switching • Capture Video and Audio input for MPEGB-4/2/1 file encoding for PC storage in various resolutions • Accepts NTSC/PAL/SECAM Composite, S-video video input • Accepts Stereo L/R audio input • USB2.0 connection for firmware download and MPEG stream data output for PC • Real-time MPEG-4 (ASP), MPEG-2 (ML) and MPEG1 encoding • MPEG-1 layer 2 encoding for Audio • Supports Vertical & Horizontal scale down for QCIF to full D1 resolutions output • Variable GOP (Group of Picture) structure: I, IP, IBP, IBBP frames • Brightness/ Contrast/ Saturation (BSC) and Hue control VBI, Macrovision & Serial Bus • • • Multi-standard VBI decode support Detects & Decodes Macrovision signal Two-wire serial bus programming; up to 4 serial bus sub-addresses selectable Ordering Information Part No. AL242C-LF-PBF Package 64-LQFP Power +1.8/3.3V