CXD1807Q

CXD1807Q CD-G Decoder For the availability of this product, please contact the sales office. Description The CXD1807Q has functions to decode CD-G commands written in the CD subcode and write them into the DRAM to display them. It also has a built-in RGB 4-bit D/A converter. By adding 256K bits of DRAM and a video encoder, a CD graphics system can be configured. Functions Real-time correction of subcode errors Powerful protection circuit for subcode synchronization RAM for color look-up table Compatible with both NTSC and PAL 4-bit DAC for RGB 80-pin QFP Applications CD-G decoder Structure Silicon gate CMOS IC Absolute Maximum Ratings (Ta = 25°C) Supply voltage VDD VSS–0.5 to +7.0 Input voltage VI VSS–0.5 to VDD +0.5 Output voltage VO VSS–0.5 to VDD +0.5 Operating temperature Topr –20 to +75 Storage temperature Tstg –55 to +150 Recommended Operating Conditions Supply voltage DVDD 5±0.5 AVDD 5±0.5 Ambient temperature Ta –20 to +75 80 pin QFP (Plastic) V V V °C °C V V °C Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits. –1– E94643-ST CXD1807Q Block Diagram 68, 72, 76 AVDD Buffer RAM SCOR 35 WFCK 36 EXCK 37 SBSO 3...