AD9670EBZ datasheet(48/53 Pages) AD

48 / 53 page

Data Sheet

AD9670

Rev. A | Page 47 of 52

Addr.

(Hex)

Bit 7 (MSB)

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0 (LSB)

Default

Value

Comments

0x109

VGA_TEST

VGA/ anti-

aliasing

filter test

mode

enable

0 = off

(default)

1 = on

VGA/ antialiasing filter output test mode

000 = Channel A (default)

001 = Channel B

010 = Channel C

011 = Channel D

100 = Channel E

101 = Channel F

110 = Channel G

111 = Channel H

0x00

VGA/ antialiasing

filter test mode

enables antialiasing

filter output to the

GPO2 and GPO3

pins (global).

0x10C

PROFILE_INDEX

Manual

TX_TRIG

0 = off,

use pin

(default)

1 = on,

auto-

generate

TX_TRIG

(self clears)

Profile Index[4:0]

0x00

Index for profile

memory selects

active profile

(global).

0x10D

RESERVED_10D

0xFF

Reserved.

0x10E

RESERVED_10E

0xFF

Reserved.

0x10F

DIG_OFFSET_CAL

Digital

offset

calibration

status

0 = not

complete

(default)

1 =

complete

Digital offset calibration

000 = disable correction, reset

correction value (default)

001 = average 210 samples

010 = average 211 samples

…

111 = average 216 samples

Controls digital

offset calibration

enable and the

number of samples

used (global).

0x110

DIG_OFFSET_

CORR1

0x00

Offset correction

LSB (local, chip).

0x111

DIG_OFFSET_

CORR2

D15

D14

D13

D12

D11

D10

0x00

Offset correction

MSB (local, chip).

Digital offset calibration (read back if auto calibration is enabled with Register 0x10F; otherwise,

force correction value

Offset correction = [D15:D0] × AFULL SCALE/216

0111 1111 1111 1111 (215 − 1) = +1/2 × AFULL SCALE − 1/216 × AFULL SCALE

0111 1111 1111 1110 (215 − 2) = +1/2 × AFULL SCALE − 2/216 × AFULL SCALE

…

0000 0000 0000 0001 (+1) = 1/216 × AFULL SCALE

0000 0000 0000 0000 = no correction (default)

1111 1111 1111 1111 (−1) = −1/216 × AFULL SCALE

…

1000 0000 0000 0000 (−215) = −1/2 full scale

0x112

POWER_MASK_

CONFIG

Power up set-up time (POWER_SETUP)

0 0000 = 0

0 0001 = 1 × 40/fSAMPLE

0 0010 = 2 × 40/fSAMPLE (default)

0 0011 = 3 × 40/fSAMPLE

…

1 1111 = 31 × 40/fSAMPLE

0x02

Power setup time

is used to set the

power-up time

(global).

0x113

DIG_DEMOD_

CONFIG

Digital

high-pass

filter

0 = enable

(default)

1 = bypass

Decimator

gain scale

0 = no

gain

(default)

1 = 4×

gain (shift

decimator

output by

Decimator and filter

enable

00 = RF 2× decimator

bypassed (default)

01 = RF 2× decimator

enabled and low band

filter

1X = RF 2× decimator

enabled and high band

filter

Baseband

decimator

0 = enable

(default)

1 = bypass

Demod-

ulator

0 = enable

(default)

1 = bypass

0x00

Enable stages of

the digital

processing

(global).

0x115

CHIP_ADDR_EN

Chip

address

mode

0 = disable

(default)

1 = enable

Chip address qualifier

0 0000 (default)

(If read, returns the state of ADDR0 to ADDR4 pins)

0x00

Chip address

mode enables the

addressing of

devices if the value

of the chip address

qualifier equals the

state on the ADDR0

to ADDR4 pins

(global).

AD9670EBZ Datasheet(PDF) 48 Page - Analog Devices

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