| Function | ATSC Standard HDTV | Prior Art HD Downconverter | New HD-capable Decoder | MP@ML (SDTV) |
|---|---|---|---|---|
| Pre-parser | < 10,000 gates
19 Mbits/sec (partial decode) |
|||
| Channel buffer size bandwidth |
8 Mbits
140 MBytes/sec BW |
8 Mbits
140 MBytes/sec BW |
1.8 to 4.3 Mbits
23 MBytes/sec |
1.8 Mbits
23 MBytes/sec |
| Total off-chip memory requirements |
96 Mbits specialty DRAM | 16 Mbits DRAM + 8 Mbits specialty DRAM | 16 Mbits DRAM | 16 Mbits DRAM |
| SP/VLD | 93M coefficients/sec | 93 M coefficients/sec | 15.5 M coefficients/sec | 15.5 M coefficients/sec |
| IDCT | 1.5 M blocks/sec | 1.5 M simple blocks/sec (HD) + 240 K full 8 8 blocks/sec (SD) | 1.5 M half complexity simple blocks/sec (HD) + 240 K full 8 8 blocks/sec (SD) | 240 K full 8 8 blocks/sec (SD) |
| Upsample/ Downsample |
— | 1,000 to 2,000 gates? | 1,000 to 2,000 gates? | — |
| Decodes HDTV | Yes | Yes | Yes | No |
| Decodes SDTV | Yes | No | Yes | Yes |