AD9557SLASHPCBZ datasheet(58/92 Pages) AD

58 / 92 page

AD9557

Data Sheet

Rev. A | Page 58 of 92

Reg

Addr

(Hex)

Opt

Name

Def

0x0323

Base loop

Filter A

coefficient

set (normal

phase

margin

of 70º)

NPM Alpha-0[7:0]

0x0324

NPM Alpha-0[15:8]

0x0325

Reserved

NPM Alpha-1[6:0]

0x0326

NPM Beta-0[7:0]

0x0327

NPM Beta-0[15:8]

0x0328

Reserved

NPM Beta-1[6:0]

0x0329

NPM Gamma-0[7:0]

0x032A

NPM Gamma-0[15:8]

0x032B

Reserved

NPM Gamma-1[6:0]

0x032C

NPM Delta-0[7:0]

0x032D

NPM Delta-0[15:8]

0x032E

Reserved

NPM Delta-1[6:0]

Output PLL (APLL)

0x0400

APLL

charge

pump

Output PLL (APLL) charge pump[7:0]

0x0401

APLL N

divider

Output PLL (APLL) feedback N divider[7:0]

0x0402

Reserved

0x0403

APLL loop

filter control

APLL loop filter control[7:0]

0x0404

Reserved

Bypass

internal

Rzero

0x0405

APLL VCO

control

Reserved (default: 0x2)

APLL locked

controlled

sync disable

Reserved

Manual

APLL VCO

cal (not auto-

clearing)

0x0406

Reserved

0x0407

RF divider

RF Divider 2[3:0]

RF Divider 1[3:0]

0x0408

Reserved

RF divider

start-up

mode

Reserved

PD RF

Divider 2

PD RF

Divider 1

Output Clock Distribution

0x0500

Distribution

output sync

Reserved

Mask

Channel 1

sync

Mask

Channel 0

sync

Reserved

Sync source

selection

Auto sync mode

0x0501

Channel 0

Enable 3.3 V

CMOS driver

OUT0 format[2:0]

OUT0 polarity[1:0]

OUT0

drive

strength

Enable

OUT0

0x0502

Channel 0 divider[7:0]

0x0503

Reserved

Channel 0

Select RF

Divider 2

Channel 0 divider[9:8]

0x0504

Reserved

Channel 0 divider phase[5:0]

0x0505

Channel 1

Reserved

OUT1 format[2:0]

OUT1 polarity[1:0]

OUT1 drive

strength

Enable

OUT1

0x0506

Reserved

0x0507

Channel 1 divider[7:0]

0x0508

Reserved

Channel 1 PD

Select RF

Divider 2

Channel 1 divider[9:8]

0x0509

Reserved

Channel 1 divider phase[5:0]

0x050A

Reserved

0x050B

Reserved

0x050C

Reserved

0x050D

Reserved

0x050E

Reserved

0x050F

Reserved

0x0510

Reserved

0x0511

Reserved

0x0512

Reserved

0x0513

Reserved

0x0514

Reserved

0x0515

Reserved

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