STMicroelectronics, supplier of ICs for cable TV set-top boxes (STBs), announced a new-generation development of the STV0297 Cable TV demodulator. The STV0279E High Performance QAM (Quadrature Amplitude Modulation) Demodulator adds new features to the STV0279D to deliver performance improvements.
According to the company in addition, the STV0279E can achieve near-perfect reception on less-than-ideal or degraded networks. It inherits all the functionality of the STV0279D and embeds new features such as four IC addresses for PVR applications, and TSMF (Transport Stream Multiplexing Frame) capability to support the Japanese market. The STV0279E enables manufacturers to produce lower cost STB solutions, with more robust performance, by using a lower cost tuner and other circuits. BOM cost is further reduced by the on-chip 12-bit ADC and the adjacent channels filter, which provides immunity to out of band disturbance. An extended complex equaliser now provides a total of approximately 100 Feed Forward and Feed Backward taps to allow correction of strong and long echoes. A phase noise cancellation block has also been introduced, In addition, a FEC (Forward Error Correction) block covering ITU-T annex A and C provides a serial or parallel bit stream. The STV0297E interfaces directly to any MPEG 2/4 decoder.
STMicroelectronics
