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With the growing number of wearable devices and applications, there is an increasing need for a flexible body channel communication (BCC) system that supports both scalable data rate and low power operation. In this paper, a highly flexible frequency-selective digital transmission (FSDT) transmitter that supports both data scalability and low power operation with the aid of two novel implementation...
Moving to the latest submicron node is required for digital scaling but causes many challenges for analog design. Additionally, scaling pushes the need for higher bandwidth. Data rates up to 28Gbps require effectively dealing with random variations and layout dependent effects. On-die instrumentation (ODI) is an effective means to alleviate many of the challenges, as well as characterize and margin...
We propose a BIST scheme to provide online testing for all-digital PLL based polar transmitters. Multiple digital signatures are collected by adding a branch digital filter optimized to increase the sensitivities to non-idealities. The test signatures are processed using simple digital processing to provide an estimate for error vector magnitude (EVM), a key RF performance measure for the transmitter...
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