AD9690 datasheet(66/77 Pages) AD

66 / 77 page

AD9690

Data Sheet

Reg

Addr

(Hex)

Name

Bit 7

(MSB)

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0 (LSB)

Default

Notes

0x01A

Buffer

Control 3

1000 = setting 1

1001 = setting 2 (default for AD9690-1000)

1010 = setting 3 (default for AD9690-500)

0x09 for

AD9690

-1000;

0x0A for

AD9690

-500

0x11A

Buffer

Control 4

High

frequency

setting

0 = OFF

(default)

1 = ON

0x935

Buffer

Control 5

Low

Frequency

Operation

0 = off

1 = on

(default)

0x025

Input full-

scale range

Full-scale adjust

0000 = 1.94 V

1000 = 1.46 V

1001 = 1.58 V

1010 = 1.70 V (default for AD9690-1000)

1011 = 1.82 V

1100 = 2.06 V (default for AD9690-500)

0x0A for

AD9690

-1000;

0x0C for

AD9690

-500

V p-p

differ-

ential;

use in

conjunc-

tion with

Reg.

0x030

Input full-

scale control

Full-scale control

See Table 10 for recommended settings

for different frequency bands;

default values:

AD9690-1000 = 110

AD9690-500 = 001

AD9690-500 = 110 (for <1.82 V)

Used in

conjunc-

tion with

Reg.

0x025

ADC Function Registers

0x024

V_1P0

control

1.0 V

reference

select

0 =

internal

1 =

external

0x00

0x028

Temperature

diode

Diode

selection

0 =

no diode

selected

1 =

temper-

ature

diode

selected

0x00

Used in

conjunc-

tion with

Reg.

0x040

0x03F

PDWN/

STBY pin

control

0 = PDWN/

STBY

enabled

1 =

disabled

0x00

Used in

conjunc-

tion with

Reg.

0x040

Chip pin

control

PDWN/STBY function

00 = power down

01 = standby

10 = disabled

111 = Reserved

Fast Detect (FD)

000 = Fast Detect output

001 = JESD204B LMFC output

010 = JESD204B internal SYNC~ output

011 = temperature diode

111 = disabled

0x3F

0x10B

Clock divider

000 = divide by −1

001 = divide by 2

011 = divide by 4

111 = divide by 8

0x00

Rev. 0 | Page 66 of 77

AD9690 Datasheet(PDF) 66 Page - Analog Devices

AD9690 Datasheet(HTML) 66 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77

Datasheet Download

Link URL