STMicroelectronics has developed two devices for low cost cable, satellite and terrestrial STBs. The STi5516 and STi5517 integrate more core STB functions into a single device than ever before, offering STB manufacturers the opportunity to build cost-effective solutions powered by devices from the leading supplier of MPEG-2 ICs. Used with ST’s established demodulator devices, the STi5516 and STi5517 form a complete chipset for low-cost STBs across all application areas. The STi5517 contains additional advanced features: it supports RGB16 graphics (with anti- flicker filtering) as an alternative image format for the OSD plane. With an integrated high- performance DMA engine, it is ideal for applications requiring high-resolution graphics. The STi5517 has built-in D1 and PCM input interfaces to allow the IC to be used in applications requiring legacy analog support. A common programme guide can then be used for both digital and analog services. The STi5517 has enhanced security features to help protect the integrity of set-top boxes against piracy.
The STi5517 is a low-cost integrated device designed for cable, satellite, and terrestrial set-top boxes (STBs). It integrates core STB functions into a single chip, offering manufacturers the opportunity to build cost-effective solutions. When used with ST's established demodulator devices, it forms a complete chipset for low-cost STBs across all application areas.
Key features include an 180 MHz 32-bit ST20 GPU with 8 Kbytes of internal SRAM, integrated transport demultiplexer, and support for more than 48 PID slots. The device supports MPEG-2 MP@ML video decoding, various audio features including Dolby Digital and PCM input, and graphics/display capabilities with up to 5 display planes and RGB16 graphics.
| CPU | 180 MHz 32-bit ST20 GPU |
|---|---|
| Internal SRAM | 8 Kbytes |
| I-cache | 8 Kbytes |
| D-cache | 8 Kbytes |
| PID slots support | More than 48 |
| Video Decoder | MPEG-2 MP@ML |
| Package | PBGA 35 x 35 (388) |
The STi5517 features an 180 MHz 32-bit ST20 GPU, integrated transport demultiplexer, DES/DVB/ICAM descramblers, and support for more than 48 PID slots.
Yes, it supports MPEG-1 layers I/II decoding (MP3 option), Dolby Digital 5.1 down-mixed to 2 channels, and PCM audio input.
It offers 5 display planes, 2, 4, and 8 bpp CLUT graphics, and RGB16 graphics with anti-flicker filtering.