ADM1069ASTZ datasheet(3/32 Pages) AD

3 / 32 page

ADM1069

Rev. C | Page 3 of 32

Supply margining can be performed with a minimum of external

components. The margining loop can be used for in-circuit

testing of a board during production (for example, to verify

board functionality at −5% of nominal supplies), or it can be

used dynamically to accurately control the output voltage of

a dc-to-dc converter.

The device also provides up to eight programmable inputs for

monitoring undervoltage faults, overvoltage faults, or out-of-

window faults on up to eight supplies. In addition, there are eight

programmable outputs that can be used as logic enables. Six of

these programmable outputs can also provide up to a 12 V output

for driving the gate of an N-FET that can be placed in the path

of a supply.

The logical core of the device is a sequencing engine (SE). This

state machine-based construction provides up to 63 different states.

This design enables very flexible sequencing of the outputs, based

on the condition of the inputs.

The ADM1069 is controlled via configuration data that can be

programmed into an EEPROM. The entire configuration can

be programmed using an intuitive GUI-based software package

provided by Analog Devices, Inc.

DETAILED BLOCK DIAGRAM

GPI SIGNAL

CONDITIONING

SFD

GPI SIGNAL

CONDITIONING

SFD

SELECTABLE

ATTENUATOR

SELECTABLE

ATTENUATOR

DEVICE

CONTROLLER

OSC

EEPROM

SDA SCL A1

SMBus

INTERFACE

REFOUT

REFIN

REFGND

VREF

12-BIT

SAR ADC

ADM1069

CONFIGURABLE

OUTPUT DRIVER

(HV)

PDO1

PDO2

PDOGND

PDO3

VCCP

GND

PDO4

PDO5

CONFIGURABLE

OUTPUT DRIVER

(HV)

PDO6

CONFIGURABLE

OUTPUT DRIVER

(LV)

PDO7

CONFIGURABLE

OUTPUT DRIVER

(LV)

PDO8

SEQUENCING

ENGINE

VX2

VX3

VP2

VP3

VP1

VX1

AGND

VX4

VDD

ARBITRATOR

REG 5.25V

CHARGE PUMP

DAC1

VOUT

DAC

DAC4

VOUT

DAC

DAC2 DAC3

VDDCAP

Figure 2. Detailed Block Diagram

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