AD73422_15 datasheet(6/36 Pages) AD

Nome de Peças	AD73422

Descrição Electrónicos	Dual Low Power CMOS Analog Front End with DSP Microcomputer

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Fabricante Electrônico	AD [Analog Devices]

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REV. 0

AD73422

–6–

CAUTION

ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily

accumulate on the human body and test equipment and can discharge without detection.

Although the AD73422 features proprietary ESD protection circuitry, permanent damage may

occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD

precautions are recommended to avoid performance degradation or loss of functionality.

WARNING!

ESD SENSITIVE DEVICE

ABSOLUTE MAXIMUM RATINGS*

(TA = +25

°C unless otherwise noted)

AVDD, DVDD to GND . . . . . . . . . . . . . . . . –0.3 V to +4.6 V

AGND to DGND . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V

Digital I/O Voltage to DGND . . . . . –0.3 V to DVDD + 0.3 V

Analog I/O Voltage to AGND . . . . . –0.3 V to AVDD + 0.3 V

Operating Temperature Range

Industrial (B Version) . . . . . . . . . . . . . . . . –20

°C to +85°C

Storage Temperature Range . . . . . . . . . . . . –40

°C to +125°C

Maximum Junction Temperature . . . . . . . . . . . . . . . . +150

°C

PBGA,

θJA Thermal Impedance . . . . . . . . . . . . . . . . . 25°C/W

Reflow Soldering

Maximum Temperature . . . . . . . . . . . . . . . . . . . . . . +225

°C

Time at Maximum Temperature . . . . . . . . . . . . . . . . . 15 sec

Maximum Temperature Ramp Rate . . . . . . . . . . . . 1.3

°C/sec

*Stresses above those listed under Absolute Maximum Ratings may cause perma-

nent damage to the device. This is a stress rating only; functional operation of the

device at these or any other conditions above those listed in the operational

sections of this specification is not implied. Exposure to absolute maximum rating

conditions for extended periods may affect device reliability.

ORDERING GUIDE

Temperature

Package

Model

Range

Description

Option

AD73422BB-80

–20

°C to +85°C

119-Ball Plastic Ball Grid Array

B-119

AD73422BB-40

–20

°C to +85°C

119-Ball Plastic Ball Grid Array

B-119

EVAL-AD73422EB

Evaluation Board

PBGA BALL CONFIGURATION

6

1

23

4

57

IRQE/PF4

DMS

VDD (INT)

CLKIN

A11/IAD10

A7/IAD6

A4/IAD3

IRQL0/PF5

PMS

WR

XTAL

A12/IAD11

A8/IAD7

A5/IAD4

IRQL1/PF6

IOMS

RD

VDD (EXT)

A13/IAD12

A9/IAD8

GND

IRQ2/PF7

CMS

BMS

CLKOUT

GND

A10/IAD9

A6/IAD5

DT0

TFS0

RFS0

A3/IAD2

A2/IAD1

A1/IAD0

A0

DR0

SCLK0

DT1/F0

PWDACK

BGH

MODE A /PF0 MODE B/PF1

TFS1/IRQ1

RFS1/IRQ0

DR1/FI

GND

PWD

VDD (EXT)

MODE C /PF2

SCLK1

ERESET

RESET

PF3

FL0

FL1

FL2

EMS

EE

ECLK

D23

D22

D21

D20

ELOUT

ELIN

EINT

D19

D18

D17

D16

BG

D3/IACK

D5/IAL

D8

D9

D12

D15

EBG

D2/IAD15

D4/IS

D7/IWR

VDD (EXT)

D11

D14

BR

D1/IAD14

VDD (INT)

D6/IRD

GND

D10

D13

EBR

D0/IAD13

DVDD

DGND

ARESET

SCLK2

AMCLK

SDO

SDOFS

SDIFS

SDI

SE

REFCAP

REFOUT

VFBP1

VINP1

VFBN1

VINN1

VFBN2

VINN2

VFBP2

AGND

AVDD

VOUTP2

VOUTN2

VOUTP1

VOUTN1

VINP2

A

B

C

D

E

F

G

H

J

K

L

M

N

P

R

T

U

TOP VIEW

NOTES:

VDD (INT) – DSP CORE SUPPLY

VDD (EXT) – DSP I/O DRIVER SUPPLY

BOTH VDD (INT) AND VDD (EXT) SHOULD BE POWERED FROM THE SAME SUPPLY.

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