We describe the design of a high performance 2 bits per cell Flash memory device capable of 8ns synchronous access rate capable of operation at up to 125MHz in burst mode and asynchronous page mode access rate of 1411s. The device is fabricated on Intel's 0.18pm ETOXTM VI1 Process technology.
A programmable clock generator that uses noise shaping can generate a wide range of sampling frequencies with fine resolution for switched-capacitor filters (SCF's). In this brief, different noise-shaping transfer functions for such a clock generator are compared through simulation and measurement of two SCF's driven by the clock generator. A tone detector that uses a bandpass SCF driven by the programmable sampling-clock generator is also described.
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