Analog Devices ADAR1000-EVALZ User Manual
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Analog Devices ADAR1000-EVALZ User Manual

Analog Devices ADAR1000-EVALZ User Manual

Evaluating the adar1000 8 ghz to 16 ghz, 4-channel, x band and ku band beamformer
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Evaluating the

FEATURES

Based on the
ADAR1000
4-channel beamformer core chip
Controllable through SPI
Multiple forms of digital interface (3.3 V and 1.8 V logic)
On-board logic level translators with 1.8 V low dropout
regulator for supply
Software control from a Windows-based PC through USB

ADDITIONAL EQUIPMENT

PC running Windows XP or a more recent software version
SDP-S
or
SDP-B
USB interface board
Network analyzer
Power supplies: +3.3 V, −5.0 V

DOCUMENTS NEEDED

ADAR1000
data sheet

REQUIRED SOFTWARE

ADAR1000.exe
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
ADAR1000
8 GHz to 16 GHz, 4-Channel, X Band and Ku Band
Beamformer

EVALUATION BOARD PHOTOGRAPH

ADAR1000-EVALZ

GENERAL DESCRIPTION

The ADAR1000-EVALZ evaluation board is designed for
evaluating the performance of the ADAR1000, a 4-channel,
X band and Ku band beamforming core chip for radar systems.
All the radio frequency (RF) input/output channels and detector
inputs are brought out to Subminiature Version A (SMA)
connectors. On-board logic level translators convert the on-chip
1.8 V logic signals to 3.3 V for interfacing to external controllers
running on 3.3 V. Two identical 20-pin, dual row rectangular
headers provide the digital interface signals to allow daisy-
chaining up to four ADAR1000-EVALZ evaluation boards
together. A 24-pin connector provides control and bias outputs
to interface to four external transmit and receive (T/R) modules
with each ADAR1000-EVALZ evaluation board.
The ADAR1000-EVALZ evaluation board can be used with an
Analog Devices, Inc., system demonstration platform (SDP)
or
SDP-B
board (supplied separately), which allows connection
to a Microsoft Windows®-based PC through the USB for
controlling of all the
For full details on the ADAR1000, see the
sheet, which should be consulted in conjunction with this user
guide when using this evaluation board.
Figure 1.
Rev. 0 | Page 1 of 18
User Guide
ADAR1000
device functions.
ADAR1000
UG-1283
SDP-S
data

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Summary of Contents for Analog Devices ADAR1000-EVALZ

  • Page 1: Features

    Power supplies: +3.3 V, −5.0 V to interface to four external transmit and receive (T/R) modules with each ADAR1000-EVALZ evaluation board. DOCUMENTS NEEDED The ADAR1000-EVALZ evaluation board can be used with an ADAR1000 data sheet Analog Devices, Inc., system demonstration platform (SDP)

  • Page 2: Table Of Contents

    UG-1283 ADAR1000-EVALZ User Guide TABLE OF CONTENTS Features ..................1 Connection Tab ................ 9 Additional Equipment ..............1 Tx Control Tab ................ 10 Documents Needed ..............1 TX Registers Tab ..............10 Required Software ................ 1 Rx Control Tab ................ 11 General Description ..............

  • Page 3: Evaluation Board Hardware

    RF input with the ADAR1000-EVALZ evaluation board, but these adapters connector for transmit mode are available through local Analog Devices distributors, as well as RX1 to RX4 Receive channel inputs to on the product page.

  • Page 4: Digital Input And Outputs

    GPIO2 AD0 (chip Address 0) input (3.3 V logic) ADAR1000-EVALZ evaluation boards controlled through a GPIO3 AD1 (chip Address 1) input (3.3 V logic) single USB interface. All signals on these connectors except GPIO4 TR input (3.3 V logic)

  • Page 5: T/R Module Control Signals

    ADAR1000-EVALZ User Guide UG-1283 Table 4. Pinout for 1.8 V Logic Connector P6 Table 6. Pmod Compatible Interface (P3) Signal Name Function Signal Serial port enable input (active low) GPIO0 (RX_LOAD) AGND Analog ground SPI_SEL_A SDIO Serial data input and output...
  • Page 6 UG-1283 ADAR1000-EVALZ User Guide The ADAR1000-EVALZ evaluation board has eight signals for LNA bias output are common to all four channels, while each driving switches and biasing amplifiers on T/R modules available PA has its own bias output. on Connector P9 (see Table 8). Switch driver outputs as well as Table 8.

  • Page 7: Evaluation Board Software Installation

    PC. Administrator privileges may be required to complete the step. After the application is installed, ADAR1000 is available from the Start menu under the Analog Devices folder. Figure 4. Saving Downloaded Control Software Archive Rev. 0 | Page 7 of 18...

  • Page 8: Test Procedure

    UG-1283 ADAR1000-EVALZ User Guide TEST PROCEDURE To use the ADAR1000-EVALZ evaluation board, take the Select the Manual Register Write tab, and click Use Input following steps: File to select the RX1_MaxG_45.txt file for the register values. Plug the SDP adapter into the P5 connector on the 10.

  • Page 9: Evaluation Board Software

    ADAR1000-EVALZ evaluation board is shown near the bottom The ADDR0 and ADDR1 check boxes in Figure 8 allow setting of the window. The last line of the window is used to display the...

  • Page 10: Tx Control Tab

    Click Write Gain Values, Write Phase Values, and Write Memory Values to send the corresponding bias register setting In the Tx Gain Control section, the user sets the gain register to the ADAR1000-EVALZ evaluation board. for each transmit channel. Figure 9. Tx Control Tab Figure 10.

  • Page 11: Rx Control Tab

    Click Write Gain Values, Write Phase Values, and Write Memory Values to send the corresponding register setting to In the Rx Gain Control section, the user sets the gain register the ADAR1000-EVALZ evaluation board. for each receive channel. Figure 11. Rx Control Tab Figure 12.

  • Page 12: T/R Control Tab

    After selecting or clearing the check boxes, click Write Enable Values or Write Switch Values in each section to write the The T/R Control tab controls the enabling of the transmit and register settings to the ADAR1000-EVALZ evaluation board. receive channels (see Figure 13). GPIO TAB...

  • Page 13: Misc Tab

    Each set of register values is transferred to the Select ADC EN, CLK EN, and ST CONV and then click Write ADAR1000-EVALZ evaluation board when clicking the ADC Values to initiate analog to digital conversion. respective Write Bias Values.

  • Page 14: Beam Sequencer Tab

    UG-1283 ADAR1000-EVALZ User Guide BEAM SEQUENCER TAB Typical entries in a beam position file are the following: • The Beam Sequencer tab (see Figure 16) contains a script to 1573119, 0x1800FF automatically step through a range of memory locations, each •...

  • Page 15: Manual Register Write Tab

    Click Write All to send the Enter the register address in the Register field and click Manual list to the ADAR1000-EVALZ evaluation board. Read for the content of the register to display in the Data field.

  • Page 16: Evaluation Board Schematics And Artwork

    UG-1283 ADAR1000-EVALZ User Guide EVALUATION BOARD SCHEMATICS AND ARTWORK Figure 20. ADAR1000-EVALZ Evaluation Board Schematic (Page 1) Rev. 0 | Page 16 of 18...
  • Page 17 ADAR1000-EVALZ User Guide UG-1283 Figure 21. ADAR1000-EVALZ Evaluation Board Schematic (Page 2) Rev. 0 | Page 17 of 18...
  • Page 18 User Guide Figure 22. Layer 1 (Component Side) Figure 23. Layer 4 (Bottom Side) ©2018 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. UG16788-0-6/18(0) Rev. 0 | Page 18 of 18...

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