LOS ANGELES--During the Western Cable Show here, Silicon Wave Inc. today claimed it was offering the world's first silicon tuner for cable telephony. The SiW1100 chip allows cable and network operators to compete with local exchange carriers in offering telephone services, according to the San Diego-based company.
"This is an important step forward for the emerging cable telephony industry because it provides an economically feasible solutions for operators to deliver digital telephony powered over hybrid fiber-coax (HFC) networks," said Dave Lyon, CEO of Silicon Wave.
Silicon Wave also today said it was offering the first silicon tuner for voice over Internet Protocol (VoIP) applications. The SiW1110 device features a power consumption of only 550 mW in full operation, according to the company. The chip supports full 64 Quadrature Amplitude Modulation (QAM) requirements for telephony networks. The chip is housed in a 7-by-7 mm package, which Silicon Wave said will make it suitable for price-sensitive consumer products. Samples of the SiW1100 VoIP IC will be available from Silicon Wave in first quarter 2001.
Meanwhile, Silicon Wave said its SiW1100 downstream silicon tuner for cable telephony offers the "lowest known power consumption" for cable frontend receivers, using less than 600 mW in full operation. The silicon tuner completely integrate all performance-critical radio-frequency (RF) elements on a single chip, including the tuning function, intermediate frequency (IF) amplifier and automatic gain control. The integrated frequency synthesizers include the voltage-controlled oscillators (VCOs) and require no external resonator elements, said the San Diego company. The phase locked loops (PLLs) require only simple external loop filters.
Reference design circuits and evaluation kits for the tuner will soon be available, according to Silicon Wave.