User Guide

EVAL-AD5766ARDZ/EVAL-AD5767ARDZ

EVALUATION BOARD HARDWARE

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Rev. 0 | 5 of 17

BENCH POWER SUPPLY OPTION

The EVAL-AD5766ARDZ/EVAL-AD5767ARDZ evaluation boards

can access all output voltage ranges of the AD5766/AD5767 when

powered by a bench supply. A headroom and footroom of at least

2 V is required. Refer to Table 2 for the supply requirements. It is

important that the voltage across AVDD to AVSS does not exceed

the absolute maximum rating of 34 V. Otherwise, device reliability

may be affected.

Following the jumper configuration in Table 1 and Table 3 gives

more details about the options offered. For VLOGIC, users can use

the 3.3 V provided by the SDP-K1 controller board when interfaced

with the USB port of a PC or use an external power supply

interfaced with Pin 11 or Pin 12 (VIO) of the peripheral module

(PMOD, P6).

ON-BOARD CONNECTORS

The EVAL-AD5766ARDZ/EVAL-AD5767ARDZ evaluation boards

have various on-board connectors for the external power supplies

and header pins, and these connectors are described in details in

Table 4.

Table 4. On-Board Connectors

Connector

Connector Description

EXT_3V3 (P7)

Pin 1

External power supply that connects to Pin 1 of

PWR_SEL

Pin 2

Analog ground

EXT_AVCC

Pin 1

External power supply that connects to Pin 3 of

AVCC_SEL

Pin 2

Analog ground

P8

Pin 1

External power supply that connects to Pin 3 of

AVDD_SEL

Pin 2

Analog ground

J1

External voltage reference supply, SMB Connector

J2 to J17

SMB connectors for VOUT 0 to VOUT 15

P6

Peripheral module (PMOD) connection pins

P9

Header pins for VOUT 0 to VOUT 7 and AGND

P10

Header pins for VOUT 8 to VOUT 15 and AGND

PMOD Connector (P6) Pin Descriptions

The PMOD connector allows the user to control the EVAL-

AD5766ARDZ/EVAL-AD5767ARDZ by means of communicating

with the AD5766/AD5767 through the 12 pins of P6. For further

information on the functionality of the P6 pins, see Table 5.

Table 5. Connector P6 Pin Descriptions

Pin No.

Description

1

No connection (NC)

2

SYNCB

3

RESETB

4

SPI_MOSI

5

NC

6

SPI_MISO

7

NC

8

SPI_SCK

9

DGND

10

DGND

11

VIO

12

VIO