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We describe custom 6R, 2/4W general-purpose register files (GRF) in an ASIC-based SOC implemented in a N28 CMOS technology, which has roughly a 2∼3 X smaller area, 2 X faster speed, and 5 X lower power than a logic-synthesized version. Synthesized and custom GRFs also have a different read behavior from static and dynamic circuitry used, respectively. This is addressed by modifying a bypass control...
This paper describes a tile-able 16-kByte 6-T SRAM macro in a High-K Metal-Gate (HKMG) 28-nm bulk technology with an operating window from 4.8 GHz at 1.12 V VDD down to 10 MHz at 0.5V, meeting almost all of the Dynamic Voltage Frequency Scaling (DVFS) requirements of Level-1 (L1) caches of a digital microprocessor SOC. It uses an unmodified technology-supported 0.156um2 high-current (HC) SRAM cell...
A linearity improvement technique is proposed on the design of low frequency (132 KHz center frequency, 40 KHz band frequency) power-line communication band-pass filter, which focus on the linearity of large R-MOSFET. In order to enhance the linearity of the triode-mode MOSFET variable resistors, driving the controlling voltages of the R-MOSFET in a resistor tuning schematic instead of the main signal...
This paper presents an improved DC-offset cancellation (DCOC) circuit for programmable-gain amplifier (PGA) in power line communication. It is a speed-enhanced and low-noisy method by using current-mode feedback. The output DC-offset can be reduced from several hundred millivolts to less than 5mV over 64 dB gain range. Furthermore, this proposed technique does not bring in excessive design complexity...
A 5mW MPEG4 SP encoder is implemented on a 7.7mm2 die in 0.18mum CMOS technology. It encodes CIF 30frames/s in real-time at 9.5MHz using 5mW at 1.3V and VGA 30frames/s at 28.5MHz uses 18mW at 1.4V. This chip employs a 2D bandwidth-sharing ME design, content-aware DCT/IDCT, and clock gating techniques to minimize power consumption
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