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This paper presents a SoC (System on Chip) dedicated for human alimentary canal pH and temperature monitoring. Sensor interfaces, wireless transceiver, digital logic and power management circuits are all embedded in this SoC. The SoC was fabricated in 0.18μm standard CMOS technology and the area is about 9mm2. The SoC takes 6.15mW power at the data collection and transmission mode. The measurement...
A low-cost low-power baseband processor for passive UHF RFID tag based on self-defined protocol is presented in this work. In order to be driven by the on-chip antenna, baseband processor employs various methods of low power technology, including GSLA (Globally Synchronous Locally Asynchronous) concept, multiple working voltages, scaling frequency of some modules, clock-gating, reuse of registers,...
An ultra-low-power system-on-a-chip (SoC) for wireless capsule endoscopes has been implemented, providing bidirectional communication between the capsule and the external data logger. The SoC is composed of a programmable UHF band transceiver with 3Mbps MSK transmitting and 64kbps OOK receiving, a 1.2V MCU with a dedicated image compressor, multiple on-chip voltage regulators, and etc. The SoC can...
This paper presents an energy-efficient SoC dedicated for portable medical monitoring and intervention systems capable of closed-loop control. The SoC contains a 0.9V/165μW MCU and a dual-band RF block including a 403MHz transceiver for data link and a 915MHz receiver for wake-up link. The data link transceiver is composed of a 200kbps FSK transmitter and a 64kbps OOK receiver, consuming 5.58mW and...
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