Analog Devices EVAL-ADGS1408SDZ Manual de usuario

EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ

User Guide

UG-1284

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 ADGS1408/ADGS1409 SPI Interface, 4 Ω RON, ±15 V/+12 V/±5 V,

1.8 V Logic Control, 8:1/Dual 4:1 Muxes

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 | Page 1 of 18

FEATURES

SPI interface with error detection

Includes CRC error detection, invalid read/write address

detection, and SCLK count error detection

Analog supply voltages

Dual supply: ±15 V

Single supply: 12 V

PC control in conjunction with evaluation software

EVALUATION KIT CONTENTS

EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ

EQUIPMENT NEEDED

SDP-B controller board (EVAL-SDP-CB1Z)

ACE software with EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ

plug-in

DC voltage source

±15 V for dual supply

12 V for single supply

Optional digital logic supply: 3.3 V

Analog signal source

Digital multimeter

DOCUMENTS NEEDED

ADGS1408/ADGS1409 data sheet

GENERAL DESCRIPTION

The EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ are the

evaluation boards for the ADGS1408/ADGS1409. The

ADGS1408/ADGS1409 are low RON, 8:1/dual 4:1 multiplexers

controlled by a serial peripheral interface (SPI). The SPI has

robust error detection features, including cyclic redundancy

check (CRC) error detection, invalid read/write address

detection, and serial clock (SCLK) count error detection. It is

possible to daisy-chain multiple ADGS1408/ADGS1409 devices

together to enable the configuration of multiple devices with a

minimal amount of digital lines. The ADGS1408/ADGS1409

also support burst mode, which decreases the time between SPI

commands.

Figure 1 and Figure 2 shows the EVAL-ADGS1408SDZ/EVAL-

ADGS1409SDZ board photographs. The EVAL-ADGS1408SDZ/

EVAL-ADGS1409SDZ are controlled by the EVAL-SDP-CB1Z

system demonstration platform (SDP), which connects to a PC

via a USB port. The ADGS1408/ADGS1409 is on the center of

the evaluation board, and wire screw terminals are provided to

connect to each of the source and drain pins. Three screw

terminals power the device and, if required, a fourth terminal

provides users with a defined digital logic supply voltage.

Alternatively, the digital logic supply voltage can be supplied

from the SDP-B board.

Consult the ADGS1408/ADGS1409 data sheet (available from

Analog Devices, Inc.) in conjunction with this user guide when

working with the evaluation board.

The evaluation board interfaces to the USB port of a PC via the

SDP-B board. The SDP-B controller board (EVAL-SDP-CB1Z)

is available for order at www.analog.com/SDP-B.

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UG-1284 EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ User Guide

Rev. 0 | Page 2 of 18

TABLE OF CONTENTS

Features .............................................................................................. 1

Evaluation Kit Contents................................................................... 1

Equipment Needed........................................................................... 1

Documents Needed.......................................................................... 1

General Description......................................................................... 1

Revision History ............................................................................... 2

EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ Photographs .... 3

Evaluation Board Hardware............................................................ 4

Power Supplies .............................................................................. 4

Input Signals.................................................................................. 4

Digital Outputs ..............................................................................4

Link Options ..................................................................................4

Evaluation Board Software Quick Start Procedures.....................5

Installing the Software..................................................................5

Initial Setup ....................................................................................5

Block Diagram and Description......................................................6

Memory Map .................................................................................6

Evaluation Board Schematics and Artwork...................................8

Ordering Information.................................................................... 18

Bill of Materials........................................................................... 18

REVISION HISTORY

6/2018—Revision 0: Initial Version

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EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ User Guide UG-1284

Rev. 0 | Page 3 of 18

EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ PHOTOGRAPHS

16792-001

Figure 1. EVAL-ADGS1408SDZ Photograph

16792-002

Figure 2. EVAL-ADGS1409SDZ Photograph

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UG-1284 EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ User Guide

Rev. 0 | Page 4 of 18

EVALUATION BOARD HARDWARE

POWER SUPPLIES

Connector J1 provides access to the supply pins of the ADGS1408/

ADGS1409. VDD, GND, and VSS on the J1 terminal block link

to the appropriate pins on the ADGS1408/ADGS1409. For

dual-supply voltages, the evaluation board can be powered from

±15 V. For single-supply voltages, the GND and VSS terminals

must connect together and power the evaluation board from

12 V. Additionally, the SDP supplies 3.3 V to the RESET/VLpin

of the ADGS1408/ADGS1409 when Link LK1 is in Position B.

When using a method other than the SDP to control the

ADGS1408/ADGS1409, supply between 2.7 V and 5.5 V to the

RESET/VLpin of the ADGS1408/ADGS1409 via the EXT_VL

screw terminal input on J1. LK1 must be in Position A.

INPUT SIGNALS

Screw connectors (J2, J3, and J6) are provided to connect to

both the source and drain pins of the ADGS1408/ADGS1409.

Additional Subminiature Version B (SMB) connector pads are

available if extra connections are required.

Each trace on the source and drain pins includes two sets of

0603 pads, which place a load on the signal path to ground.

A 0 Ω resistor is placed in the signal path and can be replaced

with a user defined value. The resistor, combined with the 0603

pads, creates a simple resistor-capacitor filter.

DIGITAL OUTPUTS

The GPOx digital output are accessible from the J7 screw

connector, and there are additional SMB connector footprints

available if extra connections are required.

LINK OPTIONS

The EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ evaluation

boards provide several link options that must be set at the

required operating conditions before use.

Table 1 shows the positioning of the links necessary for

controlling the evaluation board via the SDP-B board using a

PC and external power supplies. Table 2 shows the functions of

these link options.

LK1 must be in Position B to avoid damaging the SDP-B when

using it in conjunction with the EVAL-ADGS1408SDZ/

EVAL-ADGS1409SDZ.

Table 1. Link Options for SDP Control (Default)

Link Number Option

LK1 B

LK2 B

Table 2. Link Functions

Link Number Function

LK1 This link selects the source of the VLvoltage supplied to the ADGS1408/ADGS1409.

Position A selects EXT_VL from J1.

Position B selects the 3.3 V from the SDP-B.

LK2 This link selects how a hardware reset is performed.

Position A indicates the SW1 push-button can perform a hardware reset.

Position B indicates the SDP-B can perform a hardware reset.

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EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ User Guide UG-1284

Rev. 0 | Page 5 of 18

EVALUATION BOARD SOFTWARE QUICK START PROCEDURES

INSTALLING THE SOFTWARE

The EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ evaluation

boards use the Analog Devices Analysis, Control, Evaluation

(ACE) software. ACE is a desktop software application that

facilitates the control and evaluation of multiple evaluation

systems.

ACE installs the required SDP drivers and .NET Framework 4

by default. Install ACE before connecting the SDP-B board to

the PC. The ACE software and comprehensive instructions on

its installation and use are available at www.analog.com/ACE.

After the installation is finished, the EVAL-ADGS1408SDZ/

EVAL-ADGS1409SDZ evaluation board plug-ins appear when

ACE is opened.

INITIAL SETUP

To set up the EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ

evaluation boards, complete the following steps:

1. Connect the EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ

evaluation boards to the SDP-B board, and connect the

SDP-B board to the PC via a USB cable.

2. Turn on the evaluation board as described in the Power

Supplies section.

3. Run the ACE application. The EVAL-ADGS1408SDZ/

EVAL-ADGS1409SDZ boards plug-ins appear in the

attached hardware section of the Start tab.

4. Double-click the ADGS1408/ADGS1409SDZ Board plug-in

to open the evaluation board view shown in Figure 3. This

figure shows the basic functionality and main functions of

the EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ

evaluation boards.

16792-003

Figure 3. Evaluation Board View of the

EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ

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UG-1284 EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ User Guide

Rev. 0 | Page 6 of 18

BLOCK DIAGRAM AND DESCRIPTION

The similar appearance of the EVAL-ADGS1408SDZ/EVAL-

ADGS1409SDZ software to the functional block diagram of the

ADGS1408/ADGS1409 data sheet renders it easy to correlate

the board functions of the EVAL-ADGS1408SDZ/EVAL-

ADGS1409SDZ with the description of the functional block

diagram in the data sheet. The ADGS1408/ADGS1409 data

sheet provides comprehensive descriptions for each function,

block, register, and setting.

Table 3 describes the blocks and their functions pertaining to

the evaluation board. The full screen block diagram shown in

Figure 4 shows the functionality of each block.

MEMORY MAP

Click Memory Map to access all the registers, which can be

edited at the bit level (see Figure 5 and Figure 6). Bits shaded in

dark gray are read only bits and inaccessible from ACE. All

other bits are toggled. Click Apply Changes to transfer data

modifications to the device.

All changes to the memory map correspond to the block

diagram. For example, if the internal register bit is enabled, it

displays as enabled on the block diagram. Bolded bits or

registers represent modified values that have not been

transferred to the evaluation board. After clicking Apply

Changes, the data is transferred to the evaluation board and no

longer appears as bolded.

Table 3. Block Diagram Functions (see Figure 4)

Label Function

A The switch icons configure which channel is selected.

B The Detect Invalid Read/Write, Detect Invalid SCLK Count, and Detect Invalid CRC check boxes enable or disable the error

detection features on the SPI interface.

C The Enable Burst Mode check box enables or disables burst mode.

D The RW ERROR FLAG, SCLK ERROR FLAG, and CRC ERROR FLAG indicators illuminate red when the relevant error flags are

asserted in the error flags register.

E The Clear Flags button clears the error flags register.

F The Apply Changes button applies all modified values to the devices.

G The SW Reset button causes the device to perform a software reset.

H The GPO1, GPO2, GPO3,and GPO4 buttons select whether the corresponding GPO is on or off.

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16792-004

Figure 4. EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ Block Diagram with Labels

16792-005

Figure 5. ADGS1408/ADGS1409 Memory Map

16792-006

Figure 6. ADGS1408/ADGS1409 Memory Map with Unapplied Changes in the SW_DATA Register

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UG-1284 EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ User Guide

Rev. 0 | Page 8 of 18

EVALUATION BOARD SCHEMATICS AND ARTWORK

16792-007

Figure 7. EVAL-ADGS1408SDZ Schematic—Main Device

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EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ User Guide UG-1284

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16792-008

Figure 8. EVAL-ADGS1408SDZ—Main Device, Continued

16792-009

Figure 9. EVAL-ADGS1408SDZ—Power and Hardware Reset

UG-1284 EVAL-ADGS1408SDZ/EVAL-ADGS1409SDZ User Guide

Rev. 0 | Page 10 of 18

16792-010

Figure 10. EVAL-ADGS1408SDZ—SDP Connector

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