AD9913

Data Sheet

Rev. E | Page 6 of 32

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

NOTES

1. EXPOSED PAD SHOULD BE SOLDERED TO GROUND.

PS2/ADR5/D5

PS1/ADR4/D4

PS0/ADR3/D3

DVDD

DGND

ADR2/D2

ADR1/D1

ADR0/D0

1

2

3

4

5

6

7

8

RSET

AGND

AVDD

AGND

IOUT

IOUT

AGND

AVDD

24

23

22

21

20

19

18

17

AD9913

TOP VIEW

(Not to Scale)

Figure 3. Pin Configuration

Table 3. Pin Function Descriptions

Pin No.

Mnemonic

I/O

Description

1

PS2/ADR5/D5

I/O

Multipurpose pin: Profile Select Pin (PS2) in Direct Switch Mode, Parallel Port Address Line (ADR5), and

Data Line (D5) to program registers.

2

PS1/ADR4/D4

I/O

Multipurpose pin: Profile Select Pin (PS1) in Direct Switch Mode or Linear Sweeping Mode, Parallel Port

Address Line (ADR4), and Data Line (D4) to program registers.

3

PS0/ADR3/D3

I/O

Multipurpose pin: Profile Select Pin (PS0) in Direct Switch Mode or Linear Sweeping Mode, Parallel Port

Address Line (ADR3), and Data Line (D3) to program registers.

4

DVDD

I

Digital Power Supply (1.8 V).

5

DGND

I

Digital Ground.

6

ADR2/D2

I/O

Parallel Port Address Line 2 and Data Line 2.

7

ADR1/D1

I/O

Parallel Port Address Line 1and Data Line 1.

8

ADR0/D0

I/O

Parallel Port Address Line 0 and Data Line 0.

9

SYNC_CLK

O

Clock Out. The profile pins [PS0:PS2] and the IO_UPDATE pin (Pin 27) should be set up to the rising

edge of this signal to maintain constant pipe line delay through the device.

10

SER/PAR

I

Serial Port and Parallel Port Selection. Logic low = serial mode; logic high = parallel mode.

11, 15,

18, 21,

23

AGND

I

Analog Ground.

12, 16,

17, 22

AVDD

I

Analog Power Supply (1.8 V).

13

REF_CLK

I

Reference Clock Input. See the REF_CLK Overview section for more details.

14

REF_CLK

I

Complementary Reference Clock Input. See the REF_CLK Overview section for more details.

19

IOUT

O

Open Source DAC Complementary Output Source. Current mode. Connect through 50 Ω to AGND.

20

IOUT

O

Open Source DAC Output Source. Current mode. Connect through 50 Ω to AGND.

24

RSET

I

Analog Reference. This pin programs the DAC output full-scale reference current. Attach a 4.64 kΩ

resistor to AGND.

25

MASTER_RESET

I

Master Reset, Digital Input (Active High). This pin clears all memory elements and reprograms registers

to default values.