High-Accuracy Programmable Timing Generator with Wide-Range Tuning Capability.

Autor:	Ting-Li Chu, Sin-Hong Yu, Chorng-Sii Hwang
Předmět:	PROGRAMMABLE logic devices FREQUENCY tuning ELECTRONIC clocks & watches SWITCHING circuits GATE array circuits CLOSED loop systems
Zdroj:	VLSI Design; 2013, p1-6, 6p
Abstrakt:	In this paper, a high-accuracy programmable timing generator with wide-range tuning capability is proposed. With the aid of dual delay-locked loop (DLL), both of the coarse- and fine-tuning mechanisms are operated in precise closed-loop scheme to lessen the effects of the ambient variations. The timing generator can provide sub-gate resolution and instantaneous switching capability. The circuit is implemented and simulated in TSMC 0.18 μm 1P6M technology. The test chip area occupies 1.9 mm². The reference clock cycle can be divided into 128 bins by interpolation to obtain 14 ps resolution with the clock rate at 550 MHz. The INL and DNL are within -0.21~+0.78 and -0.27~+0.43 LSB, respectively. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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