Circuit Note

CN-0294

Rev. 0 | Page 5 of 5

R&S FSUP 26 Signal Source Analyzer

LOCKED

Settings

Residual Noise [T1 w/o spurs]

Phase Detector +20 dB

Signal Frequency:

999.999516 MHz

Int PHN (1.0 k .. 30.0 M) –56.7 dBc

Signal Level:

–3.86 dBm

Residual PM

0.119 °

Cross Corr Mode

Harmonic 1

Residual FM

4.091 kHz

Internal Ref Tuned

Internal Phase Det

RMS Jitter

0.3304 ps

Phase Noise [dBc/Hz]

Marker 1 [T1]

Marker 2 [T1]

Marker 3 [T1]

Marker 4 [T1]

RF Atten

5 dB

1 kHz

10 kHz

100 kHz

1 MHz

Top –80 dBc/Hz

–101.38 dBc/Hz

–104.99 dBc/Hz

–113.61 dBc/Hz

–142.17 dBc/Hz

–160

–150

–140

–130

–120

–110

–100

–90

10kHz

100kHz

1MHz

10MHz

1kHz

30MHz

–160

–150

–140

–130

–120

–110

–100

–90

Spur Power (dBc)

LoopBW 300Hz

1 CLRWR

SMTH 1%

2 CLRWR

A

SPR OFF

TH 0dB

FREQUENCY OFFSET

1

2

3

4

Figure 7. ADCLK948 Output Phase Noise Measurement Showing 330.4 fs rms Jitter

LEARN MORE

CN0232 Design Support Package:

http://www.analog.com/CN0232-DesignSupport

UG-435 User Guide for the EVAL-ADF4350EB1Z board

UG-068, User Guide for the ADCLK948/PCBZ board

MT-031 Tutorial, Grounding Data Converters and Solving the

Mystery of “AGND” and “DGND”, Analog Devices.

MT-086 Tutorial, Fundamentals of Phase Locked Loops (PLLs),

Analog Devices.

MT-101 Tutorial, Decoupling Techniques, Analog Devices.

ADIsimPLL Design Tool

Data Sheets and Evaluation Boards

ADF4351 Evaluation Board (EVAL-ADF4351EB1Z)

ADCLK948 Evaluation Board (ADCLK948/PCBZ)

ADF4351 Data Sheet

ADCLK948 Data Sheet

REVISION HISTORY

9/12—Revision 0: Initial Version

(Continued from first page) Circuits from the Lab circuits are intended only for use with Analog Devices products and are the intellectual property of Analog Devices or its licensors. While you

may use the Circuits from the Lab circuits in the design of your product, no other license is granted by implication or otherwise under any patents or other intellectual property by

application or use of the Circuits from the Lab circuits. Information furnished by Analog Devices is believed to be accurate and reliable. However, Circuits from the Lab circuits are supplied

"as is" and without warranties of any kind, express, implied, or statutory including, but not limited to, any implied warranty of merchantability, noninfringement or fitness for a particular

purpose and no responsibility is assumed by Analog Devices for their use, nor for any infringements of patents or other rights of third parties that may result from their use. Analog Devices

reserves the right to change any Circuits from the Lab circuits at any time without notice but is under no obligation to do so.

©2012 Analog Devices, Inc. All rights reserved. Trademarks and

registered trademarks are the property of their respective owners.

CN10989-0-9/12(0)