User Guide
The complete user guide of the evaluation board can be found at
EVAL-AD5766SD2Z/EVAL-AD5767SD2Z User Guide.
Hardware guide
Hardware configuration
Jumper |
A |
B |
C / No Link |
|---|---|---|---|
LK1 |
EXT_3.3V |
EXT_AVCC |
–f |
LK2 |
EXT_3.3V |
EXT_VLOGIC |
– |
LK3 |
EXT_3.3V |
EXT_AVCC |
– |
LK4 |
EXT_AVDD |
INT_AVDD |
– |
LK5 |
EXT_AVSS |
INT_AVSS |
– |
LK6 |
Sequenced |
Simultaneous |
Manual |
LK7 |
ADR4525BRZ |
EXT_VREF |
– |
LK8 |
EXT_AVCC |
DEMO_SUPPLY |
EXT_3.3V |
LK9 |
1.2MHz Switching Frequency |
2.4MHz Switching Frequency |
External Clock |
LK10 |
Slow Slew |
Normal Slew |
Fast Slew |
LK11 |
Ground |
– |
– |
LK12 |
Ground |
– |
– |
This table has been made for the Rev. A of the evaluation board.
For the Rev. B the following changes have been made:
LK6, LK9, LK10 no longer the have the C position, instead those configurations are obtained by not connecting the jumpers at all.
LK11 and LK12 are used to bypass the output filters.
LK8 no longer has 3 positions, it can only be linked or not and connects the EN1 and EN2 pins to EXT_3.3V.
Power supply
The EVAL-AD5766/67-SD2Z evaluation board is powered through the FMC connector. The VADJ should be set to 2.5V.
The board supports two methods for supplying the DAC parameters (VLOGIC, VACC, VADD, VASS, etc.):
a single external 3.3V supply (EXT_3.3V).
individually powered supply rails.
Refer to the configuration table for setup instructions.
The board presents the following connectors for power supply / interface:
Connector |
Scope |
|---|---|
J9 |
AVSS and AVDD |
J10 |
PMOD SPI |
J11 |
AVCC |
J12 |
3.3V Supply |
J13 |
VLOGIC |
Output
The output of the DAC can be monitored in 2 ways:
Through one of the 16 dedicated channel outputs (VOUT1-VOUT16).
Through the MUX_OUT connection.
Schematic, PCB Layout, Bill of Materials
Software guide
The evaluation board is supported with the Libiio library. This library is cross-platform (Windows, Linux, Mac) with language bindings for C, C#, Python, MATLAB, and others. Two easy examples that can be used with it are: