Sanyo LED-DP32242 Service Manual

Also see for DP46142: Owner's manual Manual del propietario

Contents

18• 64MByte typical for most designs• Power• 1.1V core voltage, 1.8V memory I/F, 3.3V I/O• Two Package Options• 365-ball BGA, 23x23mm2• 256-pin LQFP with e-pad, 28x28mm2(*) Slight variation of support with QFP package1.1. SupraHD® 748 IC DescriptionThe SupraHD® 748 is a member of the SupraHD® family of DTV system-on-chip (SoC)developed by Zoran. This device is intended to be used in ATSC high-definition digital televisionimplementations. This device includes all of the functionality required to support the televisionimplementations shown in the following block diagrams.Figure 2 shows a typical ATSC system implementation using the SupraHD® 748.Figure 3 shows the detailed block diagram of the SupraHD® 748.Figure 4 shows the video and audio input/output options of the SupraHD® 748.1.2. SupraHD® 748 FeaturesThe following sub-sections list the features of the SupraHD® 748 per category. Note that featuresunique to the BGA package are indicated with a “(BGA package)” designation while QFPpackage features are indicated with “(QFP package)”.1.2.1. Embedded Processing Unit• High performance CPU• Integrated high-performance MIPS® 4KEc™ CPU operating at 300MHz• 32-bit MIPS32 enhanced architecture• 8 K instruction cache, 8 K data cache, (2-way set associative)• Programmable memory management unit• Multiply/Divide unit• Power-down mode (triggered by WAIT instruction)• EJTAG debug support• Fully production-tested software suite• ATSC/NTSC DTV application with customizable OSD• V-Chip for analog and digital channels• PSIP parsing for channel map and EPG• Analog and digital closed-captioning (EIA-608 and EIA-708)