AD9222 datasheet(39/61 Pages) AD

39 / 61 page

AD9222

Data Sheet

Rev. F | Page 38 of 60

Addr.

(Hex)

Parameter Name

(MSB)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

(LSB)

Bit 0

Default

Value

(Hex)

Default Notes/

Comments

output_mode

0 = LVDS

ANSI-644

(default)

1 = LVDS

low power,

(IEEE1596.3

similar)

Output

invert

1 = on

0 = off

(default)

00 = offset binary

(default)

01 = twos

complement

0x00

Configures the

outputs and the

format of the data.

output_adjust

Output driver

termination

00 = none (default)

01 = 200 Ω

10 = 100 Ω

11 = 100 Ω

DCO and

FCO

2× Drive

Strength

1 = on

0 = off

(default)

0x00

Determines

LVDS or other

output properties.

Primarily func-

tions to set the

LVDS span and

common-mode

levels in place of

an external

resistor.

output_phase

0011 = output clock phase adjust

(0000 through 1010)

0000 = 0° relative to data edge

0001 = 60° relative to data edge

0010 = 120° relative to data edge

0011 = 180° relative to data edge (default)

0101 = 300° relative to data edge

0110 = 360° relative to data edge

1000 = 480° relative to data edge

1001 = 540° relative to data edge

1010 = 600° relative to data edge

1011 to 1111 = 660° relative to data edge

0x03

On devices that

utilize global

clock divide,

determines

which phase of

the divider

output is used to

supply the

output clock.

Internal latching

is unaffected.

user_patt1_lsb

0x00

User-defined

pattern, 1 LSB.

user_patt1_msb

B15

B14

B13

B12

B11

B10

0x00

User-defined

pattern, 1 MSB.

user_patt2_lsb

0x00

User-defined

pattern, 2 LSB.

user_patt2_msb

B15

B14

B13

B12

B11

B10

0x00

User-defined

pattern, 2 MSB.

serial_control

LSB first

1 = on

0 = off

(default)

<10

MSPS,

low

encode

rate

mode

1 = on

0 = off

(default)

000 = 12 bits (default, normal bit

stream)

001 = 8 bits

010 = 10 bits

011 = 12 bits

100 = 14 bits

0x00

Serial stream

control. Default

causes MSB first

and the native

bit stream

(global).

serial_ch_stat

Channel

output

reset

1 = on

0 = off

(default)

Channel

power-

down

1 = on

0 = off

(default)

0x00

Used to power

down individual

sections of a

converter (local).

AD9222 Datasheet(PDF) 39 Page - Analog Devices

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