Design of Very High-Frequency Multirate Switched-Capacitor Circuits: Extending the Boundaries of CMOS Analog Front-End Filtering [Hardcover]

Design of Very High-Frequency Multirate Switched-Capacitor Circuits presents the theory and the corresponding CMOS implementation of the novel multirate sampled-data analog interpolation technique which has its great potential on very high-frequency analog frond-end filtering due to its inherent dual advantage of reducing the speed of data-converters and DSP core together with the specification relaxation of the post continuous-time filtering. This technique completely eliminates the traditional phenomenon of sampled-and-hold frequency-shaping at the lower input sampling rate. Also, in order to tackle physical IC imperfections at very high frequency, the state-of-the-art circuit design and layout techniques for high-speed Switched-Capacitor (SC) circuits are comprehensively discussed:

-Optimum circuit architecture tradeoff analysis
-Simple speed and power trade-off analysis of active elements
-High-order filtering response accuracy with respect to capacitor-ratio mismatches
-Time-interleaved effect with respect to gain and offset mismatch
-Time-interleaved effect with respect to timing-skew and random jitter with non-uniformly holding
-Stage noise analysis and allocation scheme
-Substrate and supply noise reduction
-Gain-and offset-compensation techniques
-High-bandwidth low-power amplifier design and layout
-Very low timing-skew multiphase generation

Two tailor-made optimum design examples in CMOS are presented. The first one achieves a 3-stage 8-fold SC interpolating filter with 5.5MHz bandwidth and 108MHz output sampling rate for a NTSC/PAL CCIR 601 digital video at 3 V. Another is a 15-tap 57MHz SC FIR bandpass interpolating filter with 4-fold sampling rate increase to 320MHz and the first-time embedded frequency band up-translation for DDFS system at 2.5V. The corresponding chip prototype achieves so far the l£'