Evaluation Board for
2.7 GHz DDS-Based
Agile
RF
™
Synthesizer
AD9956/PCB
Rev.
0
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However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
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Tel: 781.329.4700
Fax: 781.326.8703
© 2005 Analog Devices, Inc. All rights reserved.
EVALUATION BOARD FUNCTIONAL BLOCK DIAGRAM
÷
M
DDS
÷
R
VCO
÷
N
LPF
AD9956
LPF
VCO AND LOOP FILTER ONLY POPULATED ON
AD9956-VCO/PCB. THESE SOCKETS LEFT VACANT
FOR USER TO POPULATE ON AD9956/PCB
J16
J6
J7
J1
REFCLK
RF
DIVIDER
SYSCLK
DAC IOUT
DAC IOUT
DRV_OUT
DRV_OUT
SYSCLK
REFCLK
PLL_OSC
CML DRIVER
PHASE FREQUENCY DETECTOR/
CHARGE PUMP
PLL_REF
PLL_OSC
CP_OUT
J2
J3
50
Ω
J4
J5
05278-001
Figure 1.
DESCRIPTION
This data sheet describes the AD9956/PCB evaluation board
hardware and software. The current version of software
provides a graphical user interface (GUI) that allows easy
communication with the many on-chip functions of the device.
The AD9956 is a highly sophisticated
Agile
RF synthesizer with
numerous user-programmable functions. See the AD9956 data
sheet for detailed information about the part.
