Ian Juso Dedic

Digital multi-wavelength generation and real time video transmission in a coherent ultra dense WDM PON

Generation of multiple individually modulated wavelengths out of a single laser source is one of the key pre-requisites for an economical UDWDM PON. It is implemented using a 65 GS/s DAC and real time DSP.

A CMOS 6 b 200 M sample/s 3 V-supply A/D converter for a PRML read channel LSI

There is a strong demand for high speed ADCs for PRML read channel LSI. Most of these ADCs are fabricated with bipolar or BiCMOS, because of high-speed operation. Conventional CMOS ADCs have 100 MSample/s conversion rate and insufficient tolerance to power supply noise. These problems are overcome by interleaved auto-zeroing (IAZ) architecture and output-swing limiting comparator (OLC). The ADCs operate at 200 MSample/s in a mixed PRML read channel LSI.

A 16 b 100 k sample/s 2.7 V 25 mW ADC/DSP/DAC-based analog signal processor in 0.8 /spl mu/m CMOS

The 0.8/spl mu/m CMOS signal processor described combines a low-noise analog front-end and reference, 16b ADC/DAC, and 16b DSP optimized for filter applications. With 25mW typical power consumption at 100kSample/s (3mW for ADC/DAC) it can be programmed for high-order analog filtering and other signal processing functions with 80dB typical SNR.