AD9675KBCZ datasheet(49/61 Pages) AD

49 / 61 page

AD9675

Data Sheet

Rev. A | Page 48 of 60

Addr.

(Hex)

Name

Bit 7

(MSB)

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

(LSB)

Default

Value

Comments

0x0FF

DEVICE_

UPDATE

Update

speed

mode

0 = off

(default)

1 = on

0x00

A write to

Reg 0xFF

(value does

not matter)

resets all

default reg-

ister values

(analog and

ADC registers

only, not JESD

registers,

Reg 0x00 or

Reg 0x02[4:5])

if Reg 0x02

was prev-

iously written

since the last

reset/load of

defaults.

Program Function Registers

0x008

GLOBAL_

MODES

LNA input

impe-

dance

0 = 6 kΩ

(default)

1= 3 kΩ

Internal power-down mode

000 = chip run (TGC mode)

001 = full power-down (default)

010 = standby

011 = reset all JESD registers

100 = CW mode (TGC power-down)

0x01

Determines

generic

modes of

chip

operation

(global)

0x009

GLOBAL_

CLOCK

DCS

0 = off

1 = on

(default)

0x01

Turns the

internal duty

cycle

stabilizer

(DCS) on and

off (global)

0x00A

PLL_

STATUS

PLL lock

status

0 = not

locked

1 =

locked

JESD204B

link ready

status

0 = link not

ready

(default)

1 = link

ready, PLL

locked

0x00

Monitor PLL

lock and link

ready status

(read only,

global)

0x00D

TEST_IO

User test

mode

0 = con-

tinuous,

repeat

user

patterns

(1, 2, 3, 4, 1,

2, 3, 4, …)

(default)

1 = single

clock

cycle user

patterns,

then zeros

(1, 2, 3, 4,

0, 0, …)

Reset PN

long gen

0 = on, PN

long

running

(default)

1 = off, PN

long held

in reset

Reset PN

short

gen

0 = on,

PN short

running

(default)

1 = off,

PN short

held in

reset

Output test mode

0000 = off (default)

0001 = midscale short

0010 = +FS short

0011 = −FS short

0100 = checkerboard output

0101 = PN sequence long

0110 = PN sequence short

0111 = one-/zero-word toggle

1000 = user input

1001 to 1110 = reserved

1111 = ramp output

0x00

When this

set, the test

data is

placed on

the output

pins in place

of normal

data (local)

0x00E

GPO

General-purpose digital outputs

0x00

Values

placed on

GPO0 to

GPO3 pins

(global)

AD9675KBCZ Datasheet(PDF) 49 Page - Analog Devices

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