Abstract
A phase-locked loop (PLL) with two different delay feedback paths is presented. It provides a new approach to minimize the dead zone, jitter accumulation, long settling time and nonidealities on PFD/CP. This PLL utilizes a tunable delay cell to reduce the ripple on the VCO control line and hence the jitter penalty. In addition, a fully differential delay cell for voltage-controlled oscillator (VCO) is introduced to perform a wide locking range and low-jitter performance. The proposed PLL was implemented in 0.35-μm 2P4M CMOS standard technology with the core area of 0.1 mm2. It can be operated from 250MHz to 1.29GHz and consume 38.2mW of power at 1GHz under a 3.3-V supply voltage.
Original language | English |
---|---|
Article number | 1465208 |
Pages (from-to) | 2799-2802 |
Number of pages | 4 |
Journal | Proceedings - IEEE International Symposium on Circuits and Systems |
DOIs | |
Publication status | Published - 2005 |
Externally published | Yes |
Event | IEEE International Symposium on Circuits and Systems 2005, ISCAS 2005 - Kobe, Japan Duration: 2005 May 23 → 2005 May 26 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering