Application Note VCC1, CMOS XO Typical Phase Noise and Jitter Measurements Jitter Results Jitter measurements were performed on a Lecroy Wavemaster 8600A oscilloscope. The measurements were recorded by testing the devices on an evaluation board with an AC coupled output. The evaluation board was connected to the 8600A with an SMA bullet and 90k samples were taken. The values in the table represent typical values and are in the units of pS. Period Jitter: Period jitter compares the length of each cycle to the average period of an ideal clock using the long term averaging frequency. Cycle to Cycle Jitter: Cycle to cycle jitter compares the difference in the cycle length of adjacent cycles. Time Interval Error Jitter: TIE Jitter is the variation in the clock’s transition from its ideal position over many cycles. Also included is the intgrated jitter for the 12 kHz to 20 MHz offset band, using an Agilent E5052A. Measured on Output Period Cycle to Cycle TIE Agilent E5052A RMS P/P RMS P/P RMS P/P RMS 12kHz - 20MHz1 (fs) MHz ps Ps ps ps ps ps 1.8 17 3.0 31 3.1 22 578 10.000 2.8 21 4.5 31 2.3 16 242 16.384 2.6 18 4.6 31 1.9 15 260 24.576 2.2 19 4.0 32 2.1 14 242 34.368 2.3 17 3.5 27 2.5 16 126 44.736 2.5 18 3.7 29 2.3 15 138 51.840 2.8 19 4.2 29 2.6 18 115 65.536 3 20 4.5 32 2.4 16 104 77.760 3.2 19 5.2 34 2.6 15 94 90.000 2.7 19 4.0 29 2.5 16 73 106.250 1.4 13 2.4 25 3.4 23 66 125.000 2.5 15 4.4 27 2.0 14 117 155.520 2.3 14 4.2 25 1.6 12 90 166.000 2.3 17 3.4 29 2.4 16 139 189.000 1. Data is based on 12kHz-5MHz for output frequencies < 44.736MHz Table of typical jitter values for the VCC1 series of oscillators Typical Phase Noise for the VCC1 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. VCC1-B3B-10M000 Phase Noise Test Vectron International • 267 Lowell Rd, Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com Typical Phase Noise for the VCC1 Series VCC1-B3B-16M384 Phase Noise Test VCC1-B3B-24M576 Phase Noise Test Vectron International • 267 Lowell Rd, Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com Typical Phase Noise for the VCC1 Series VCC1-B3B-34M368 Phase Noise Test VCC1-B3B-44M736 Phase Noise Test Vectron International • 267 Lowell Rd, Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com Typical Phase Noise for the VCC1 Series VCC1-B3B-51M840 Phase Noise Test VCC1-B3D-65M536 Phase Noise Test Vectron International • 267 Lowell Rd, Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com Typical Phase Noise for the VCC1 Series VCC1-B3B-77M760 Phase Noise Test VCC1-B3B-90M000 Phase Noise Test Vectron International • 267 Lowell Rd, Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com Typical Phase Noise for the VCC1 Series VCC1-B3B-106M25 Phase Noise Test VCC1-B3D-125M00 Phase Noise Test Vectron International • 267 Lowell Rd, Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com Typical Phase Noise for the VCC1 Series VCC1-B3D-155M52 Phase Noise Test VCC1-B3D-166M00 Phase Noise Test Vectron International • 267 Lowell Rd, Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com Typical Phase Noise for the VCC1 Series VCC1-G3C-189M00 Phase Noise Test 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. August 2007. Vectron International • 267 Lowell Rd, Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com