AD9767AST datasheet(5/27 Pages) AD

5 / 27 page

REV. B

AD9767

–5–

PIN FUNCTION DESCRIPTIONS

Pin No.

Name

Description

1–14

PORT1

Data Bits DB13–P1 to DB0–P1.

15, 21

DCOM1, DCOM2

Digital Common.

16, 22

DVDD1, DVDD2

Digital Supply Voltage.

WRT1/IQWRT

Input write signal for PORT 1 (IQWRT in interleaving mode).

CLK1/IQCLK

Clock input for DAC1 (IQCLK in interleaving mode).

CLK2/IQRESET

Clock input for DAC2 (IQRESET in interleaving mode).

WRT2/IQSEL

Input write signal for PORT 2 (IQSEL in interleaving mode).

23–36

PORT2

Data Bits DB13–P2 to DB0–P2.

SLEEP

Power-Down Control Input.

ACOM

Analog Common.

39, 40

IOUTA2, IOUTB2

“PORT 2” differential DAC current outputs.

FSADJ2

Full-scale current output adjust for DAC2.

GAINCTRL

GAINCTRL Mode (0 = 2 resistor, 1 = 1 resistor.)

REFIO

Reference Input/Output.

FSADJ1

Full-scale current output adjust for DAC1.

45, 46

IOUTB1, IOUTA1

“PORT 1” differential DAC current outputs.

AVDD

Analog Supply Voltage.

MODE

Mode Select (1 = Dual Port, 0 = Interleaved).

PIN CONFIGURATION

13 14 15 16 17 18 19 20 21 22 23 24

48 47 46 45 44

39 38 37

43 42 41 40

PIN 1

IDENTIFIER

TOP VIEW

(Not to Scale)

AD9767

DB0-P2

DB1-P2

DB2-P2

DB3-P2

DB4-P2

DB5-P2

DB6-P2

DB7-P2

DB8-P2

DB9-P2

DB10-P2

DB11-P2

DB13-P1 (MSB)

DB12-P1

DB11-P1

DB10-P1

DB9-P1

DB8-P1

DB7-P1

DB6-P1

DB5-P1

DB4-P1

DB3-P1

DB2-P1

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