AD9913

Data Sheet

Rev. C | Page 6 of 32

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

PS2/ADR5/D5

NOTES

1. EXPOSED PAD SHOULD BE SOLDERED TO GROUND.

PS1/ADR4/D4

PS0/ADR3/D3

DVDD

DGND

ADR2/D2

ADR1/D1

ADR0/D0

RSET

AGND

AVDD

AGND

IOUT

IOUT

AGND

AVDD

1

2

3

4

5

6

7

8

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.