AD9671KBCZ datasheet(51/61 Pages) AD

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AD9671

Data Sheet

Rev. A| Page 50 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

0x00F

FLEX_

CHANNEL_

INPUT

Filter cutoff frequency control

0 0000 = 1.45 × (1/3) × fSAMPLE

0 0001 = 1.25 × (1/3) × fSAMPLE

0 0010 = 1.13 × (1/3) × fSAMPLE

0 0011 = 1.0 × (1/3) × fSAMPLE (default)

0 0100 = 0.9 × (1/3) × fSAMPLE

0 0101 = 0.8 × (1/3) × fSAMPLE

0 0110 = 0.75 × (1/3) × fSAMPLE

0 0111 = not applicable

0 1000 = 1.45 × (1/4.5) × fSAMPLE

0 1001 = 1.25 × (1/4.5) × fSAMPLE

0 1010 = 1.13 × (1/4.5) × fSAMPLE

0 1011 = 1.0 × (1/4.5) × fSAMPLE

0 1100 = 0.9 × (1/4.5) × fSAMPLE

0 1101 = 0.8 × (1/4.5) × fSAMPLE

0 1110 = 0.75 × (1/4.5) × fSAMPLE

0 1111 = not applicable

1 0000 = 1.45 × (1/6) × fSAMPLE

1 0001 = 1.25 × (1/6) × fSAMPLE

1 0010 = 1.13 × (1/6) × fSAMPLE

1 0011 = 1.0 × (1/6) × fSAMPLE

1 0100 = 0.9 × (1/6) × fSAMPLE

1 0101 = 0.8 × (1/6) × fSAMPLE

1 0110 = 0.75 × (1/6) × fSAMPLE

1 0111 = not applicable

BW mode

0 = low

(default,

8 MHz to

18 MHz)

1 = high

(13.5 MHz

to 30 MHz)

0x18

Antialiasing

filter cutoff

(global).

0x010

FLEX_

OFFSET

0x20

Reserved.

0x011

FLEX_

GAIN

Digital VGA gain control

0000 = GAIN± pins enabled (default)

0001 = 0.0 dB (maximum gain, GAIN± pins disabled)

0010 = −3.5 dB

0011 = −7.0 dB

…

1110 = −45 dB

1111 = reserved (do not use)

PGA gain

00 = 21 dB

01 = 24 dB (default)

10 = 27 dB

11 = 30 dB

LNA gain

00 = 15.6 dB

01 = 17.9 dB

10 = 21.6 dB

(default)

11 = reserved

0x06

LNA and PGA

gain

adjustment

(global).

0x012

BIAS_

CURRENT

PGA bias

0 =100%

(default)

1 = 60%

LNA bias

00 = high

01 = midhigh (default)

10 = midlow

11 = low

0x09

LNA bias

current

adjustment

(global).

0x013

RESERVED_

0x00

Reserved.

0x014

OUTPUT_

MODE

Output

data

enable

0 =

enable

(default)

1 =

disable

Output data

invert

0 = disable

(default)

1 = enable

Output data format

00 = offset binary

01 = twos complement

(default)

10 = gray code

11 = reserved

0x01

Data output

modes (local).

0x015

OUTPUT_

ADJUST

CML output drive level adjustment

000 = reserved

001 = reserved

010 = 368 mV

011 = reserved

100 = 293 mV

101 = 286 mV

110 = 262 mV (default)

111 = 238 mV

Output

pre-

emphasis

0 = off

(default)

1 = on

0x61

Data output

levels (global).

0x016

RESERVED_

0x00

Reserved

(global).

0x017

RESERVED_

0x00

Reserved

(global).

0x018

FLEX_VREF

0x04

Reserved

(global).

0x019

USER_

PATT1_LSB

0x00

User-Defined

Pattern 1, LSB

(global).

AD9671KBCZ Datasheet(PDF) 51 Page - Analog Devices

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