A 1.296-to-5.184Gb/s Transceiver with 2.4mW/(Gb/s) Burst-mode CDR using Dual-Edge Injection-Locked Oscillator

Since the I/O bandwidth demand for mobile consumer electronics has been growing rapidly, the importance of high-speed low-power I/O links has also been increasing. Among proposed I/O architectures, [1] and [2] are attractive solutions. However, for an application that needs the burst-mode operation, the lock-in time should be within the period of several tens of bits. Therefore, the PLL-based phase rotator with a longer lock-in time, is not suitable for this purpose. In this paper, a 1.296-to-5.184Gb/s transceiver uses an injection-locking-based CDR. The proposed CDR architecture, dual-edge injection-locked oscillator CDR (DILO-CDR), realizes fast lock (≪20 bits), continuous-rate capability (1.296 to 5.184Gb/s) and 2× power efficiency [2.4mW/(Gb/s)] of previous fast-lock continuous-rate CDRs [3, 4].