Evaluation Board User Guide

UG-521

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Evaluating the CN-0285 Wideband Tx Modulator Solution

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. 0 | Page 1 of 8

FEATURES

Self-contained board including

ADF4351 wideband PLL + VCO

ADL5375 wideband IQ modulator

Ultralow noise voltage regulators: ADP150, ADP3334

25 MHz TCXO reference

USB interface

Accompanying ADF4351 software allows control of

synthesizer functions from PC

ONLINE RESOURCES

Documents Needed

ADF4351 Data Sheet

ADL5375 Data Sheet

ADP150 Data Sheet

ADP3334 Data Sheet

Required Software

ADF435x programming software

Design and Integration Files

Schematics, Layout Files, Bill of Materials

EQUIPMENT NEEDED

A standard PC running Windows® XP, Windows Vista (32-bit),

or Windows 7 with a USB port

EVAL-CN0285-EB1Z circuit evaluation board

5.5 V power supplies

An IQ signal source, such as the Rohde & Schwarz AMIQ

A spectrum analyzer, such as the Rohde & Schwarz FSQ8

GENERAL DESCRIPTION

The EVAL-CN0285-EB1Z is the evaluation board described in

the Circuits From the Lab™ Circuit Note CN-0285, Broadband

Low EVM Direct Conversion Transmitter. A photo of the board

is shown in Figure 1. It contains the ADF4351 synthesizer, the

ADL5375 wideband transmit modulator, and ultralow noise

LDOs. The board can be controlled using the ADF4351

programming software. A USB cable is included with the board

to connect to a PC USB port.

Additional information, including other PLL data sheets,

technical notes, articles, and ADIsimPLL™ PLL simulation

software from Analog Devices, Inc., is available at

www.analog.com/pll.

PHOTO OF THE EVALUATION BOARD

Figure 1. EVAL-CN0285-EB1Z