EK1HMC7044LP10B User Guide

UG-826

One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com

Evaluating the HMC7044 Dual Loop Clock Jitter Cleaner

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS.

Rev. 0 | Page 1 of 10

FEATURES

Simple power connection using USB connection and

on-board LDO voltage regulators

LDOs can be bypassed for power measurements

AC-coupled differential SMA connectors

SMA connectors for

2 reference Inputs

6 clock outputs

1 VCXO output

Microsoft Windows®–based evaluation software with

simple graphical user interface

On-board PLL loop filter

Easy access to digital input/output and diagnostic signals

via input/output header (4 GPIOs)

Status LEDs for diagnostic signals

USB computer interface

EVALUATION KIT CONTENTS

EV3HMC7044LP10B evaluation board

USB interface board and USB cable

EK1HMC7044LP10B user guide

GENERAL DESCRIPTION

This user guide describe the hardware and software of the

HMC7044 evaluation kit. The evaluation board schematic and

printed circuit board (PCB) layout artwork can be found on the

EK1HMC7044LP10B product page at www.analog.com.

The HMC7044 meets the requirements of multicarrier GSM

and LTE base station designs and offers a wide range of clock

management and distribution features to simplify baseband and

radio card clock tree designs. The high performance dual-loop core

of the HMC7044 enables the base station designer to attenuate the

incoming jitter of a primary system reference clock, such as a

CPRI source, with the help of the narrow-band configured first

PLL loop, which disciplines an external VCXO, and to generate

the low phase noise, high frequency clocks with the wider-band

second PLL to drive data converter sample clock inputs.

The EV3HMC7044LP10B evaluation board is a compact, easy

to use platform for evaluating all the features of the HMC7044.

A 122.88 MHz VCXO is mounted on the evaluation board to

provide a complete solution. All inputs and outputs are

configured as differential on the evaluation board.

Full specifications on the HMC7044 are available in the product

data sheet, which should be consulted in conjunction with this

user guide when working with the evaluation board.

EVALUATION BOARD PHOTOGRAPH

Figure 1.