ADV7190 データシートの表示（PDF） - Analog Devices

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ADV7190

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

Analog Devices 

ADV7190/ADV7191

ABSOLUTE MAXIMUM RATINGS1

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 GND2 . . . . . . . . . . . . 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

PIN CONFIGURATION

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

P0 1

P1 2

P2 3

P3 4

P4 5

P5 6

P6 7

P7 8

P8 9

P9 10

P10 11

P11 12

P12 13

P13 14

P14 15

P15 16

PIN 1

IDENTIFIER

ADV7190/ADV7191

LQFP

TOP VIEW

(Not to Scale)

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

48 RSET1

47 VREF

46 COMP 1

45 DAC A

44 DAC B

43 VAA

42 AGND

41 DAC C

40 DAC D

39 AGND

38 VAA

37 DAC E

36 DAC F

35 COMP 2

34 RSET2

33 AGND

NC = NO CONNECT

Model

ADV7190KST

ADV7191KST

ORDERING GUIDE

Temperature Range

0∞C to 70∞C

0∞C to 70∞C

Package Description

64-Lead Quad Flatpack

64-Lead Quad Flatpack

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.

Package Option

ST-64

ST-64

WARNING!

ESD SENSITIVE DEVICE

REV. B

–9–

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