Application Note VCC4, CMOS XO Typical Phase Noise and Jitter Measurements Jitter Results Jitter measurements were performed on a Wavecrest SIA-3300C signal integrity analyzer. The measurements were recorded by testing the devices on an evaluation board with an AC coupled output. The evaluation board was connected to the SIA-3300C with an SMA bullet and 90k samples were taken. The values in the table represent typical values. Period Jitter: Period jitter compares the length of each cycle to the average period of an ideal clock using the long term averaging frequency. Random Jitter: Unbounded and unpredictable jitter. Deterministic Jitter: Bounded and predictable jitter. Total Jitter: The sum of all of the jitter, measured to a 1x10 -12 BER or confidence level. Also included is the intgrated jitter for the 12 kHz to 20 MHz offset band, using an Agilent E5052A. Measured on Output Period Random Deterministic Total Agilent E5052A RMS P/P P/P P/P P/P RMS 12kHz - 20MHz1 MHz ps ps ps fs ps fs 2.9 25.2 2.9 50 40.5 465 10.000 3.2 28.1 3.2 40 44.6 432 16.384 3.2 26.8 3.2 60 43.8 337 20.000 3.3 28.2 3.3 20 45.6 296 27.000 2.7 24.3 2.7 60 37.2 223 35.328 1.8 16.1 1.9 20 26.0 130 50.000 1.8 15.9 1.9 40 25.7 159 55.000 1.9 16.9 1.9 20 27.1 113 66.000 1.9 16.9 1.9 5 26.7 53 100.00 1.9 16.9 1.9 25 26.0 48 125.00 1. Data is based on 12kHz-5MHz for output frequencies < 50.000 MHz Table of typical jitter values for the VCC4 series of oscillators Typical Phase Noise for the VCC4 Series Phase Noise Results Phase noise measurements were performed on an Agilent E5052A signal source analyzer (SSA). The E5052A has a phase noise to jitter integration calculation feature and devices were characterized in the 12kHz-20MHz band (except for the lower frequencies where the equipment limitations prevented measurement to 20 MHz – see graphs for frequency band). Please contact Vectron for other offset integration bands. VCC4-B3D-10M000 Vectron International • 267 Lowell Rd, Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com Typical Phase Noise for the VCC4 Series VCC4-B3F-16M384 VCC4-B3F-20M000 Vectron International • 267 Lowell Rd, Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com Typical Phase Noise for the VCC4 Series VCC4-B3E-27M000 VCC4-F3D-35M328 Vectron International • 267 Lowell Rd, Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com Typical Phase Noise for the VCC4 Series VCC4-B3F-50M000 VCC4-B3C-55M000 Vectron International • 267 Lowell Rd, Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com Typical Phase Noise for the VCC4 Series VCC4-B3D-66M000 VCC4-B3D-100M000 Vectron International • 267 Lowell Rd, Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com Typical Phase Noise for the VCC4 Series VCC4-B3C-125M000 Contact Application Engineering for any phase noise/jitter data on frequencies not listed. For Additional Information Please Contact: USA: Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Fax: 1-888-FAX-VECTRON EUROPE: Landstrasse, D-74924, Neckarbischofsheim, Germany • Tel: 49 (0) 7268 8010 • Fax: 49 (0) 7268 801281 ASIA: Vectron Asia Pacific Sales 1F~2F. No.8 Workshop No.308 Fenju Rd., WaiGaoQiao Free Trade Zone, Pudong New Area Shanghai, China 200131 •Tel: 8621 50480777 • Fax: 8621 50481881 Vectron International reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information. October 2007. Vectron International • 267 Lowell Rd, Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com