Evaluating the ADF5611

See projects/adf5611 (doxygen) for the Doxygen documentation.

The EV-ADF5611SD1Z evaluates the performance of the ADF5611 fractional frequency synthesizer with an integrated voltage controlled oscillator (VCO) for phase-locked loops (PLLs). The EVADF5611SD1Z contains the ADF5611 frequency synthesizer with an integrated VCO, a USB interface, power supply connectors, on-board reference oscillator, propagation delay calibration paths, and Subminiature Version A (SMA) connectors. The output is AC-coupled with 50 Ω transmission lines making the outputs suitable to drive 50 Ω impedance instruments.

The above also applies to the ADF5612 frequency synthesizers.

Full specifications on the ADF5611 and ADF5612 frequency synthesizer are available in the ADF5611 and ADF5612 data sheet available from Analog Devices Inc. and must be consulted with their user guide when using the EV-ADF5611SD1Z and ADF5612SD1Z evaluation boards.

Applications

Military and Defense
Test equipment
Clock generation
Wireless infrastructure
Satellite and very small aperture terminal (VSAT)
Microwave radio

Hardware Specifications

Power Supply Requirements

The EV-ADF5612D1Z and ADF5612SD1Z are both powered by a 6 V power supply connected to the J4 SMA connector.

Reference Input Requirements

The EV-ADF5611SD1Z and ADF5612SD1Z has an on-board, 122.88 MHz, ultra low phase noise, sine-wave oscillator to drive the ADF5611 and ADF5612 reference input respectively. Single-ended oscillator output is connected to the REFP pin, and the REFN pin is AC grounded. This oscillator is used by default on the board.

The reference input can also be driven externally via a pair of SMA connectors, REFIN (J5). When using the external reference, disconnect the on-board oscillator path. This will require board modifications, please refer to the EVAL-ADF5611 or EVAL-ADF5612 for details.

Pin Description

Please see the following table for the pin assignments for the Arduino interface connectors (P2 and P4).

P1: ANALOG IN

Pin

Name

Description

1

A0

Not connected

2

A1

Not connected

3

A2

Not connected

4

A3

Not connected

5

A4

Not connected

6

A5

Not connected

P2: POWER +-----+-------------------+------------------------------------------+ | 1 | NC | Not connected | +-----+-------------------+------------------------------------------+ | 2 | IOREF | Connected to VIO | +-----+-------------------+------------------------------------------+ | 3 | RESET | Not connected | +-----+-------------------+------------------------------------------+ | 4 | +3V3 | Not connected | +-----+-------------------+------------------------------------------+ | 5 | +5V | Not connected | +-----+-------------------+------------------------------------------+ | 6 | GND | Connected to Ground | +-----+-------------------+------------------------------------------+ | 7 | GND | Connected to Ground | +-----+-------------------+------------------------------------------+ | 8 | VIN | Not connected | +-----+-------------------+------------------------------------------+

P4: DIGITAL 1 +-----+-------------------+------------------------------------------+ | 1 | 8 | Not connected | +-----+-------------------+------------------------------------------+ | 2 | 9/PWM | Connected to CEN | +-----+-------------------+------------------------------------------+ | 3 | 10/PWM/CS | Connected to CSB | +-----+-------------------+------------------------------------------+ | 4 | 11/PWM/MOSI | Connected to STD_SPI_MOSI | +-----+-------------------+------------------------------------------+ | 5 | 12/MISO | Connected to STD_SPI_MISO | +-----+-------------------+------------------------------------------+ | 6 | 13/SCK | Connected to STD_SPI_CLK | +-----+-------------------+------------------------------------------+ | 7 | GND | Connected to Ground | +-----+-------------------+------------------------------------------+ | 8 | AREF | Not connected | +-----+-------------------+------------------------------------------+ | 9 | SDA | Connected to EEPROM_SDA | +-----+-------------------+------------------------------------------+ | 10 | SCL | Connected to EEPROM_SCL | +-----+-------------------+------------------------------------------+

P5: DIGITAL 0 +-----+-------------------+------------------------------------------+ | 1 | RX + 0 | Not connected | +-----+-------------------+------------------------------------------+ | 2 | TX + 1 | Not connected | +-----+-------------------+------------------------------------------+ | 3 | 2 | Not connected | +-----+-------------------+------------------------------------------+ | 4 | 3/PWM | Not connected | +-----+-------------------+------------------------------------------+ | 5 | 4 | Not connected | +-----+-------------------+------------------------------------------+ | 6 | 5/PWM | Not connected | +-----+-------------------+------------------------------------------+ | 7 | 6/PWM | Not connected | +-----+-------------------+------------------------------------------+ | 8 | 7 | Not connected | +-----+-------------------+------------------------------------------+

No-OS Build Setup

Please see: https://wiki.analog.com/resources/no-os/build

No-OS Supported Examples

The initialization data used in the examples is taken out from: Project Common Data Path

The macros used in Common Data are defined in platform specific files found in: Project Platform Configuration Path

Basic example

This example initializes the ADF5611 or ADF5612 with the configurations provided in the above mentioned common files and applies them to the IC. By default reference frequency is provided by the local oscillator of the board, the differential output path is powered down and the RF Output power level is set to 3. Subsequently the example sets a test frequency of 12 GHz.

In order to build the basic example make sure you are using this command:

python tools/scripts/no_os_build.py build \
        --project adf5611 --variant basic --board sdp-ck1z

IIO example

This project provide an IIOD demo for the ADF5611 and ADF5612. It launches an IIOD server on the mother platform it runs on allowing the user to connect via an IIOD client. Using IIO-Oscilloscope, the user can configure the ADF5611 or ADF5612.

If you are not familiar with ADI IIO Application, please take a look at: IIO No-OS

The No-OS IIO Application together with the No-OS IIO ADF5611 driver take care of all the back-end logic needed to setup the IIO server.

This example initializes the IIO device and calls the IIO app as shown in: IIO Example

In order to build the IIO project make sure you are using this command:

python tools/scripts/no_os_build.py build \
        --project adf5611 --variant iio --board sdp-ck1z

No-OS Supported Platforms

STM32 Platform

Used hardware

EVAL-ADF5611 or EVAL-ADF5612
SDP-K1

Connections:

The Arduino of the SDP-K1 needs to be connected to Arduino header of the Evaluation board. Additionally a 6V power supply needs to be connected to either J4 (the SMA interface).

Build Command

The STM32 platform uses the CMake/Ninja build system via the no_os_build.py helper script. Available variants: basic, iio. Available boards: sdp-ck1z.

For toolchain setup and prerequisites, see the STM32 CMake build guide.

# set the path to STM32CubeMX and STM32CubeIDE (only if they are not
# in a default install location)
export STM32CUBEMX=</path/to/stm32cubemx>
export STM32CUBEIDE=</path/to/stm32cubeide>
# PowerShell (Windows) equivalent:
#   $env:STM32CUBEMX = "C:\ST\STM32CubeMX"
#   $env:STM32CUBEIDE = "C:\ST\STM32CubeIDE"

cd no-OS

# build the example on the SDP-K1 board (replace --variant as needed)
python tools/scripts/no_os_build.py build \
        --project adf5611 --variant basic --board sdp-ck1z

# build and flash (requires a connected debug probe)
python tools/scripts/no_os_build.py build \
        --project adf5611 --variant basic --board sdp-ck1z \
        --probe openocd --flash