ADCLK946/PCBZ

Evaluation Board User Guide
UG-069
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
Setting Up the Evaluation Board for the ADCLK946
Please see the last page for an important warning and disclaimers. Rev. 0 | Page 1 of 8
PACKAGE LIST
Evaluation board with ADCLK946 component installed
Applicable documents (schematic, layout)
GENERAL DESCRIPTION
This user guide describes how to set up and use the evaluation
board for the ADCLK946. The ADCLK946 data sheet should be
used in conjunction with this user guide.
The data sheet contains full technical details about the spec-
ifications and operation of this device.
The ADCLK946 is a very high performance clock fanout buffer.
The evaluation board is fabricated using a high quality Rogers
dielectric material. Transmission line paths are kept as close to
50 Ω as possible.
DIGITAL PICTURE OF EVALUATION BOARD
08668-101
Figure 1. ADCLK946 Evaluation Board
UG-069 Evaluation Board User Guide
Rev. 0 | Page 2 of 8
TABLE OF CONTENTS
Package List ....................................................................................... 1
General Description ......................................................................... 1
Digital Picture of Evaluation Board ............................................... 1
Revision History ............................................................................... 2
Evaluation Board Hardware ............................................................ 3
Recommended Board Setup ........................................................3
Clock Outputs ................................................................................4
Evaluation Board Schematic and Artwork .....................................5
ESD Caution...................................................................................8
REVISION HISTORY
11/09Revision 0: Initial Version
Evaluation Board User Guide UG-069
Rev. 0 | Page 3 of 8
EVALUATION BOARD HARDWARE
RECOMMENDED BOARD SETUP
The recommended setup for the ADCLK946 evaluation board
is shown in Figure 2. V
CC
is set to 3.3 V and V
EE
is set to GND.
On the evaluation board, the clock input is set up for single-
ended-to-differential operation via the balun. In addition, series
capacitors in the path provide ac-coupled inputs to the
ADCLK946. The common-mode voltage for both inputs is
provided by tying V
REF
and V
T
together. This connection is made
with R13 installed at the factory.
The range of the peak-to-peak input voltage swing at CLK is
0.2 V p-p to 1.7 V p-p. Note that output jitter performance is
degraded by an input slew rate, as shown in the ADCLK946
data sheet.
Table 1. Basic Equipment Required
Quantity Description
1 Single power supply
1 Signal source
1 High bandwidth oscilloscope
4 Matched high speed cables
CLOCK
SOURCE
ADCLK946
EVALUATION
BOARD
POWER SUPPLY
OSCILLOSCOPE
+3.3V GND
Qx
Qx
GND
V
REF
V
T
V
EE
V
CC
CLK
CLK
CH 1
CH 2
08668-002
Figure 2. Recommended Setup for Device Evaluation

ADCLK946/PCBZ

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Clock & Timer Development Tools EVAL BRD ADCLK946
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

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