AD9670EBZ datasheet(43/48 Pages) AD

43 / 48 page

AD9674

Data Sheet

Rev. A | Page 42 of 47

Addr.

(Hex) RegisterName

Bit 7 (MSB)

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0 (LSB)

Default

Value Comments

0x016 FLEX_OUTPUT_

PHASE

DCO signal

invert:

0 = disable

(default),

1 = enable

DCO signal phase adjust

with respect to DOUT:

00 = +90° (default),

01 = 0°,

10 = 0°,

11 = −90°

0x00

DCO signal inversion and

coarse phase adjustment

(global).

0x017 FLEX_OUTPUT_

DELAY

DCO signal delay

enable:

0= disable (default),

1 = enable

DCO signal clock delay:

00000: 100 ps (default),

00001 = 200 ps,

00010 = 300 ps,

…,

11101 = 3.0 ns,

11110 = 3.1 ns,

11111 = 3.2 ns

0x00

DCO signal delay (global).

0x018 RESERVED_018

0x04

Reserved (global).

0x019 USER_

PATT1_LSB

0x00

User-Defined Pattern 1,

LSB (global).

0x01A USER_

PATT1_MSB

B15

B14

B13

B12

B11

B10

0x00

User-Defined Pattern 1,

MSB (global).

0x01B USER_

PATT2_LSB

0x00

User-Defined Pattern 2,

LSB (global).

0x01C USER_

PATT2_MSB

B15

B14

B13

B12

B11

B10

0x00

User-Defined Pattern 2,

MSB (global).

0x01D USER_

PATT3_LSB

0x00

User-Defined Pattern 3,

LSB (global).

0x01E USER_

PATT3_MSB

B15

B14

B13

B12

B11

B10

0x00

User-Defined Pattern 3,

MSB (global).

0x01F USER_

PATT4_LSB

0x00

User-Defined Pattern 4,

LSB (global).

0x020 USER_

PATT4_MSB

B15

B14

B13

B12

B11

B10

0x00

User-Defined Pattern 4,

MSB (global).

0x021 FLEX_

SERIAL_CTRL

FCO signal

invert:

0 = not

inverted

(default),

1= inverted

Lane mode:

00 = 1-channel/lane

(8 lanes) (default),

01 = 2-channel/lane

(4 lanes),

10 = 4-channel/lane

(2 lanes),

11 = 8-channel/lane

(1 lane)

Lane low

rate:

0=normal

(default),

1 = low

sample

frequency

(<32MHz)

Output word length:

00 = 12 bits (default),

01 = 14 bits,

10 = 16 bits,

11 = reserved

0x00

LVDS control (global).

0x022 SERIAL_

CH_STAT

Channel

power-down:

1 = on,

0 = off

(default)

0x00

Used to power down

individual channels (local).

0x02B FLEX_FILTER

Enables

automatic

low-pass

tuning:

1 = on

(self clearing)

Bypass

analog HPF:

0 = off

(default),

1 = on

Analog high-pass filter

cutoff:

00 = fLP/12 (default),

01 = fLP/9,

10 = fLP/6,

11 = fLP/3

0x00

Filter cutoff (global);

(fLP = low-pass filter cutoff

frequency in MSPS).

0x02C LNA_TERM

LO-x, LOSW-x

connection:

00 = RFB1 (default),

01 = (RFB1||RFB2),

10 = RFB2,

11 = ∞

0x00

LNA active termination/

input impedance (global).

AD9670EBZ Datasheet(PDF) 43 Page - Analog Devices

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