Description The QAMi5516 is an integrated demodulator/decoder solution for digital cable receivers for compressed video, sound and data services. A QAM demodulator performs IF to MPEG-2 block processing of QAM carriers. The demodulated stream is then processed by video and audio decoders using standard Omega technology. Features ■ Decodes ITU-T J.83-Annexes A/B/C and DVBC bitstreams ■ Integrated high performance ADC ■ Support for 4-, 16-, 32-, 64-, 128-, 256-point constellation variable symbol ■ Rate from 0.87 MBaud to 11.7 MBaud ■ Robust integrated adaptative equalizer ■ I²C serial bus and I²C repeater ■ Lock time <100ms ■ 180 MHz 32-bit ST20 CPU ● 8 Kbytes internal SRAM, 8 Kbytes of I-cache and 8 Kbytes of D-cache ■ Integrated transport demultiplexer ● DES, DVB and ICAM descramblers ● Support for more than 48 PID slots ■ MPEG-2 MP@ML video decoder ● Fully programmable horizontal and vertical SRCs ■ Audio features ● MPEG-1 layers I/II decoding (MP3 option) ● Dolby® Digital 5.1 down-mixed to 2 channels ● Dolby® Pro Logic compatible ● SRS® TruSurround® virtual surround sound ● PCM audio input ● Integrated audio DACs ■ Graphics/display ● 5 display planes (background, video, still, OSD and cursor) ● 2, 4 and 8bpp CLUT graphics ■ PAL/NTSC/SECAM video encoder ● RGB, CVBS, Y/C and YUV outputs with 10-bit DACs ● Encoding of CGMS, teletext, WSS, VPS, closed caption ● Macrovision 7.01 copy protection ■ Interfaces ● CableCard and dual DVB common interface ● 5 ASCs (UARTs) with Tx and Rx FIFOs ● 6 x 8-bit banks of parallel I/O ● 2 smartcard interfaces and clock generators ● 4 PWM channels ● Multichannel IR transmitter/receiver ● Low power/RTC/watchdog controller ■ Module features ● Low power consumption (~1500 mW) ● Package: 27 x 27 mm 416 PBGA, 1 mm pitch
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