AD9739ABBCZ datasheet(10/64 Pages) AD

Part #	AD9739ABBCZ

Description	11-/14-Bit, 2.5 GSPS

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Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

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10 / 64 page

AD9737A/AD9739A

Data Sheet

Rev. | Page 10 of 64

A

B

C

D

E

F

G

H

J

K

L

M

N

P

14

13

12

11

10

6

3

2

1

9

5

4

IRQ

CS

SCLK

RESET

SDIO

SDO

7

8

I120

VREF

AD9737A

Figure 7. AD9737A Analog I/O and SPI Control Pins (Top View)

Table 7. AD9737A Pin Function Descriptions

Pin No.

Mnemonic

Description

C1, C2, D1, D2, E1, E2, E3, E4

VDDC

1.8 V Clock Supply Input.

A1, A2, A3, A4, A5, B1, B2, B3, B4, B5, C4,

C5, D4, D5

VSSC

Clock Supply Ground.

A10, A11, B10, B11, C10, C11, D10, D11

VDDA

3.3 V Analog Supply Input.

A12, A13, B12, B13, C12, C13, D12, D13,

VSSA

Analog Supply Ground.

A6, A9, B6, B9, C6, C9, D6, D9, E11, E12,

E13, E14, F1, F2, F3, F4, F11, F12

VSSA Shield

Analog Supply Ground Shield. Tie to VSSA at the DAC.

A14

NC

Do not connect to this pin.

A7, B7, C7, D7

IOUTN

DAC Negative Current Output Source.

A8, B8, C8, D8

IOUTP

DAC Positive Current Output Source.

B14

I120

Nominal 1.2 V Reference. Tie to analog ground via a 10 kΩ

resistor to generate a 120 µA reference current.

C14

VREF

Voltage Reference Input/Output. Decouple to VSSA with a 1 nF

capacitor.

D14

NC

Factory Test Pin. Do not connect to this pin.

C3, D3

DACCLK_N/DACCLK_P

Negative/Positive DAC Clock Input (DACCLK).

F13

IRQ

Interrupt Request Open Drain Output. Active high. Pull up to

VDD33 with a 10 kΩ resistor.

F14

RESET

Reset Input. Active high. Tie to VSS if unused.

G13

CS

Serial Port Enable Input.

G14

SDIO

Serial Port Data Input/Output.

H13

SCLK

Serial Port Clock Input.

H14

SDO

Serial Port Data Output.

J3, J4, J11, J12

VDD33

3.3 V Digital Supply Input.

G1, G2, G3, G4, G11, G12

VDD

1.8 V Digital Supply Input.

H1, H2, H3, H4, H11, H12, K3, K4, K11, K12

VSS

Digital Supply Ground.

J1, J2

NC

Differential resistor of 200 Ω exists between J1 and J2. Do not

connect to this pin.

K1, K2

NC

Differential resistor of 100 Ω exists between K1 and K2. Do not

connect to this pin.

J13, J14

DCO_P/DCO_N

Positive/Negative Data Clock Output (DCO).

K13, K14

DCI_P/DCI_N

Positive/Negative Data Clock Input (DCI).

C

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