doi:EP0967724 A2Dortu Jean-MarcEPEP0967724A2 * 1999年5月21日 1999年12月29日 Siemens Aktiengesellschaft Calibrated delay locked loop for DDR SDRAM applications
A delay locked loop based clocking circuit includes a lead delay line followed by a period delay line. The lead delay line receives an input clock signal and includes an analog delay control input. Th
Phase splitter using digital delay locked loops A phase splitter using digital delay locked loop (DLL) to receive complementary input clock signals to generate a plurality of output signals having different phase shifts. When the DLL is locked, the delay resolution of the phase splitt... R. Ja...
Delay-locked loops (DLLs) can be considered as feedback circuits that phase lock an output to an input without the use of an oscillator. In some applications, DLLs are necessary or preferable over phase-locked loops (PLLs), with their advantages including lower sensitivity to supply noise and...
Delay Locked Loop IP Generation of clock signal with a fixed but programmable phase difference with respect to a reference input clock is critical in many applications. An all digital DLL design with several features like wide lock range for input frequencies, short locking time, and reduced ...
A 4224 MHz low jitter phase-locked loop in 0.13-μm CMOS technology A 4224 MHz phase-locked loop(PLL) is implemented in 0.13渭m CMOS technology.A dynamic phase frequency detector is employed to shorten the delay reset time ... C Hu,L Bo,S Ke,... - 《Journal of Semiconductors》 被引...
A delay-locked loop, including a phase detector configured to receive two signals, one of the signals being delayed relative to the other of the signals, the phase detector having an UP output and a DOWN output. The delay-locked loop also includes a charge pump system operatively coupled with...
A delay locked loop (DLL) for use in a synchronous memory device includes: a first shift controller for generating a first shift-right signal in response to a first comparison signal; a first shift register for performing only a shift-right operation in response to the first shift-right signa...
(In an analogue delay, you could think of the electronics or the tape loop performing the same function as the memory in a digital delay.) Multiple echoes or 'repeats' of the programme material are produced by feeding a percentage of the delayed material back from the output of the delay ...
A delay locked loop (DLL) with delay programmability includes a pair of delay blocks, each containing multiple delay elements, but configurable to connect a desired subset of the delay elements betwee