AD9913
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
PS2/ADR5/D5
PS1/ADR4/D4
PS0/ADR3/D3
DVDD
1
2
3
4
5
6
7
8
24 RSET
23 AGND
22 AVDD
21 AGND
20 IOUT
19 IOUT
18 AGND
17 AVDD
PIN 1
INDICATOR
AD9913
TOP VIEW
(Not to Scale)
DGND
ADR2/D2
ADR1/D1
ADR0/D0
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
3
PS1/ADR4/D4
PS0/ADR3/D3
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.
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
5
6
7
8
9
DVDD
DGND
ADR2/D2
ADR1/D1
ADR0/D0
SYNC_CLK
I
I
Digital Power Supply (1.8 V).
Digital Ground.
I/O Parallel Port Address Line 2 and Data Line 2.
I/O Parallel Port Address Line 1and Data Line 1.
I/O Parallel Port Address Line 0 and Data Line 0.
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
AGND
I
I
Serial Port and Parallel Port Selection. Logic low = serial mode; logic high = parallel mode.
Analog Ground.
11, 15,
18, 21,
23
12, 16,
17, 22
AVDD
I
Analog Power Supply (1.8 V).
13
14
19
20
24
REF_CLK
REF_CLK
IOUT
I
I
Reference Clock Input. See the REF_CLK Overview section for more details.
Complementary Reference Clock Input. See the REF_CLK Overview section for more details.
Open Source DAC Complementary Output Source. Current mode. Connect through 50 Ω to AGND.
Open Source DAC Output Source. Current mode. Connect through 50 Ω to AGND.
Analog Reference. This pin programs the DAC output full-scale reference current. Attach a 4.64 kΩ
resistor to AGND.
O
O
I
IOUT
RSET
25
MASTER_RESET
I
Master Reset, Digital Input (Active High). This pin clears all memory elements and reprograms registers
to default values.
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