EVALAD7762EB Analog Devices Inc, EVALAD7762EB Datasheet

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EVALAD7762EB

Manufacturer Part Number
EVALAD7762EB
Description
Manufacturer
Analog Devices Inc
Datasheet
1.EVALAD7762EB.pdf (24 pages)

Specifications of EVALAD7762EB

Lead Free Status / Rohs Status
Not Compliant
Preliminary Technical Data
FEATURES
Full-featured evaluation board for the
EVAL-CED1Z compatible
On-board 4.096 V reference
Crystal clock oscillator MCLK source
PC software for control and data analysis for
EVALUATION BOARD DESCRIPTION
This data sheet describes the evaluation board for the AD7760/
AD7762/AD7763 Σ-Δ ADCs. The AD7760 is a 24-bit ADC that
combines wide input bandwidth and high speed with the benefits
of Σ-Δ conversion with a performance of 100 dB SNR at 2.5 MSPS,
making it ideal for high-speed data acquisition.
The AD7762 and AD7763 derivatives are parallel and serial
interface versions, respectively, of the AD7760, with maximum
output data rates of 625 kSPS.
Complete specifications for the AD7760/AD7762/AD7763 devices
are available in the AD7760/AD7762/AD7763 data sheets available
from Analog Devices, Inc., and should be consulted in conjunction
with this data sheet when using the evaluation board.
Rev. PrA
Information furnished by Analog Devices is believed to be accurate and reliable. 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.
AD7760/AD7762/AD7763
use with EVAL-CED1Z
Differential Input
XLR Connector
Differential Amplifier
External Feedback
Components
EVALUATION BOARD BLOCK DIAGRAM
Evaluation Board for AD7760/AD7762/AD7763
V
V
V
V
V
V
AV
IN
IN
OUT
IN
IN
OUT
-
+
A+
A-
DD1-4
A+
A-
Figure 1.
EVAL-AD7760/AD7762/AD7763EDZ
DV
AD7760/
AD7762/
AD7763
DD
RESET
RESET
Oscillator
Crystal
XTAL
MCLK
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The EVAL-AD7760/AD7762/AD7763EDZ includes a 40 MHz
crystal oscillator that provides the MCLK for the AD7760/
AD7762/AD7763 device. The user can also choose, if required,
to drive the AD7760/AD7762/AD7763 with a different clock
oscillator, or to insert the 0 Ω link so that the MCLK signal is
driven using an external clock source via the SMB connector
marked MCLK.
The AD7760/AD7762/AD7763 evaluation board comes with
an on-board FPGA device that is used to interface with the
EVAL-CED1Z board. The combination of both the FPGA and the
EVAL-CED1Z board allied with the EVAL-AD7760/AD7762/
AD7763EDZ software allows the user to upload samples taken by
the AD7760/AD7762/AD7763 device onto a PC showing the
waveform being sampled, as well as allowing the data to be
shown in histogram or FFT format. The EVAL-AD7760/AD7762/
AD7763EDZ can also be used on a standalone basis (without the
FPGA and EVAL-CED1Z); however, in this case the user must
provide the required interface signals.
CONTENTS OF EVALUATION KIT
•
•
AD7760/AD7762/AD7763 evaluation board
(EVAL-AD7760/AD7762/AD7763EDZ)
EVAL-AD776xEDZ evaluation software
CD—software and drivers
MCLK
V DRIVE
FPGA_OE
FPGA
LK3
©2008 Analog Devices, Inc. All rights reserved.
using EVAL-CED1Z
www.analog.com

EVALAD7762EB Summary of contents

Page 1

Preliminary Technical Data FEATURES Full-featured evaluation board for the AD7760/AD7762/AD7763 EVAL-CED1Z compatible On-board 4.096 V reference Crystal clock oscillator MCLK source PC software for control and data analysis for use with EVAL-CED1Z EVALUATION BOARD DESCRIPTION This data sheet describes the ...

Page 2

EVAL-AD7760/AD7762/AD7763EDZ TABLE OF CONTENTS Features .............................................................................................. 1 Evaluation Board Description......................................................... 1 Contents of Evaluation Kit .......................................................... 1 Evaluation Board Block Diagram................................................... 1 Revision History ............................................................................... 2 Hardware Description...................................................................... 3 Power Supplies .............................................................................. 3 Differential Input.......................................................................... 3 Standalone Operation .................................................................. 3 ...

Page 3

Preliminary Technical Data HARDWARE DESCRIPTION POWER SUPPLIES The EVAL-AD776xEDZ must be powered using a power supply that applies a 7.5 V between the V+ and GND terminals of Connector J2. This 7.5 V supply is then regulated on board using ...

Page 4

EVAL-AD7760/AD7762/AD7763EDZ LINK OPTIONS The link options on the evaluation board should be set for the required operating setup before using the board. The functions of these links are described in Table 1. Table 1. Link Options Link No. Function LK1 ...

Page 5

... If an unknown device is listed, right click on this option and select, Update Driver. 5. The New Hardware Wizard will run twice, and under the ADI Development Tools the following hardware is listed: ADI Converter Evaluation and Development Board (WF) 6. Reboot the PC. This section describes how the evaluation board, the EVAL- CEDZ and the software should be set up to begin using the complete system ...

Page 6

EVAL-AD7760/AD7762/AD7763EDZ 5. To start the installation, click the “Next” button as shown in Figure 5, this window details the actions of the installation. Figure 5. EVAL-AD776xEDZ Install actions 6. 7. The software can now be located by following the path ...

Page 7

Preliminary Technical Data USING THE EVALUATION SYSTEM HARDWARE CONNECTIONS 1. Apply power to the EVAL-CED1Z via +7V, 15W power supply provided with the EVAL-CED1Z board. At this stage, the green LED labeled ‘Power’ on the EVAL-CED1Z should be lighting. This ...

Page 8

EVAL-AD7760/AD7762/AD7763EDZ SOFTWARE INSTRUCTIONS FOR NORMAL USE Once the initial software installation has been completed, follow these instructions for the general setup of the evaluation software each subsequent time the system is used. Note that the hardware must be powered up ...

Page 9

Preliminary Technical Data EVAL-AD7760/AD7762/AD7763EDZ Figure 9. Sample and Continuous Front Panel Buttons 11 important to ensure that the frequency of the DRDY pulse on an oscilloscope (at the SMB connector marked J7) is checked so that it matches ...

Page 10

EVAL-AD7760/AD7762/AD7763EDZ EVAL-AD7763EB PINOUT The schematic for the EVAL-AD7760/AD7762/AD7763EDZ that is shown in the Evaluation Board Schematic and Artwork section is drawn with reference to the parallel interfaced AD7760 and AD7762 devices. The AD7763 operates with a serial interface, thus Pins ...

Page 11

Preliminary Technical Data EVALUATION BOARD SCHEMATIC AND ARTWORK Figure 11. EVAL-AD7760/AD7762/AD7763EDZ Schematic (Analog Section Rev.F) Page EVAL-AD7760/AD7762/AD7763EDZ Rev. PrA | Page ...

Page 12

EVAL-AD7760/AD7762/AD7763EDZ Figure 12. EVAL-AD7760/AD7762/AD7763EDZ Schematic (Power Supply Section Rev F) Page Preliminary Technical Data Rev. PrA | Page ...

Page 13

Preliminary Technical Data Figure 13. EVAL-AD7760/AD7762/AD7763EDZ Schematic (Digital Section Rev F) Page EVAL-AD7760/AD7762/AD7763EDZ Rev. PrA | Page ...

Page 14

EVAL-AD7760/AD7762/AD7763EDZ Figure 14. EVAL-AD7760/AD7762/AD7763EDZ Schematic (FPGA Section Rev F) Page Preliminary Technical Data Rev. PrA | Page ...

Page 15

Preliminary Technical Data Figure 15. EVAL-AD7760/AD7762/AD7763EDZ Component Side Top Silkscreen Artwork EVAL-AD7760/AD7762/AD7763EDZ Rev. PrA | Page ...

Page 16

EVAL-AD7760/AD7762/AD7763EDZ Figure 16. EVAL-AD7760/AD7762/AD7763EDZ Component Side Layer 1 Artwork Preliminary Technical Data Rev. PrA | Page ...

Page 17

Preliminary Technical Data Figure 17. EVAL-AD7760/AD7762/AD7763EDZ Ground Plane Layer 2 Artwork EVAL-AD7760/AD7762/AD7763EDZ Rev. PrA | Page ...

Page 18

EVAL-AD7760/AD7762/AD7763EDZ Figure 18. EVAL-AD7760/AD7762/AD7763EDZ Power Plane Layer 2 Artwork Preliminary Technical Data Rev. PrA | Page ...

Page 19

Preliminary Technical Data Figure 19. EVAL-AD7760/AD7762/AD7763EDZ Solder Side Layer 4 Artwork EVAL-AD7760/AD7762/AD7763EDZ Rev. PrA | Page ...

Page 20

EVAL-AD7760/AD7762/AD7763EDZ Figure 20. EVAL-AD7760/AD7762/AD7763EDZ Component Side Bottom Silkscreen Artwork Preliminary Technical Data Rev. PrA | Page ...

Page 21

Preliminary Technical Data ORDERING INFORMATION BILL OF MATERIALS Table 2. Qty Part Type 1 24-bit Σ-∆ ADC parallel interface (64-lead TQFP_EP) 24-bit Σ-∆ ADC parallel interface (64-lead TQFP_EP) 24-bit Σ-∆ ADC serial interface (64-lead TQFP_EP) 2 UHS 2-input AND gate ...

Page 22

EVAL-AD7760/AD7762/AD7763EDZ Qty Part Type 16 0.1 μ X7R multilayer ceramic Capacitor 0603 X7R multilayer ceramic Capacitor 0603 4 100 NPO multilayer ceramic Capacitor 0603 1 Diode-S2M 2 A rectifier Diode ...

Page 23

Preliminary Technical Data ORDERING GUIDE Model Description EVAL-AD7760EB Evaluation Kit EVAL-AD7762EB Evaluation Kit EVAL-AD7763EB Evaluation Kit EVAL-CED1Z Converter Evaluation and Development (CED) Board ESD CAUTION EVAL-AD7760/AD7762/AD7763EDZ Rev. PrA | Page ...

Page 24

EVAL-AD7760/AD7762/AD7763EDZ NOTES ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. EB07694-0-8/08(PrA) Preliminary Technical Data Rev. PrA | Page ...