ADV7190 datasheet(9/72 Pages) AD

Il numero della parte	ADV7190

Spiegazioni elettronici	Video Encoders with Six 10-Bit DACs and 54 MHz Oversampling

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Produttore elettronici	AD [Analog Devices]

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9 / 72 page

ADV7190/ADV7191

–9–

REV. B

ABSOLUTE MAXIMUM RATINGS

1

VAA to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V

Voltage on Any Digital Input Pin . . . . GND – 0.5 V to VAA + 0.5 V

Storage Temperature (TS) . . . . . . . . . . . . . . –65

∞C to +150∞C

Junction Temperature (TJ) . . . . . . . . . . . . . . . . . . . . . 150

∞C

Body Temperature (Soldering, 10 secs) . . . . . . . . . . . . 220

∞C

Analog Outputs to GND

2

. . . . . . . . . . . . GND – 0.5 to VAA

NOTES

1Stresses 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 condi-

tions for extended periods may affect device reliability.

2Analog output short circuit to any power supply or common can be of an indeﬁnite

duration.

PACKAGE THERMAL PERFORMANCE

The 64-lead package is used for this device. The junction-to-

ambient (

qJA) thermal resistance in still air on a four-layer PCB

is 38

∞C/W.

To reduce power consumption when using this part, the user can

run the part on a 3.3 V supply, and turn off any unused DACs.

The user must at all times stay below the maximum junction

temperature of 110

∞C. The following equation shows how to

calculate this junction temperature:

Junction Temperature = (VAA

¥ (IDAC + ICCT)) ¥ qJA + 70∞C TAMB

IDAC = 10 mA + (sum of the average currents consumed by

each powered-on DAC)

Average current consumed by each powered-on DAC =

(VREF

¥ K )/RSET

VREF = 1.235 V

K = 4.2146

ORDERING GUIDE

Model

Temperature Range

Package Description

Package Option

ADV7190KST

0

∞C to 70∞C

64-Lead Quad Flatpack

ST-64

ADV7191KST

0

∞C to 70∞C

64-Lead Quad Flatpack

ST-64

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 ADV7190/ADV7191 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

PIN CONFIGURATION

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

1

2

3

4

5

6

7

8

9

10

11

13

14

15

16

12

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

64 63 62 61 60

55 54 53 52 51 50 49

59 58 57 56

PIN 1

IDENTIFIER

TOP VIEW

(Not to Scale)

ADV7190/ADV7191

LQFP

NC = NO CONNECT

P0

P1

P2

P3

P4

P5

P6

P7

P8

P9

P10

P11

P12

P13

P14

P15

RSET1

VREF

COMP 1

DAC A

DAC B

VAA

AGND

DAC C

DAC D

AGND

VAA

DAC E

DAC F

COMP 2

RSET2

AGND

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