ADV7194 データシートの表示（PDF） - Analog Devices

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ADV7194

Professional Extended-10 Video Encoder with 54 MHz Oversampling

Analog Devices 

ADV7194

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

ambient (θJA) thermal resistance in still air on a four-layer PCB

is 24.7°C.

To reduce power consumption when using this part the user

can run the part on a 3.3 V supply, 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)) × θJA + 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

80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61

P0 1

P1 2

P2 3

P3 4

P4 5

P5 6

P6 7

P7 8

P8 9

P9 10

Y[0]/P10 11

Y[1]/P11 12

Y[2]/P12 13

Y[3]/P13 14

Y[4]/P14 15

Y[5]/P15 16

Y[6]/P16 17

Y[7]/P17 18

Y[8]/P18 19

Y[9]/P19 20

PIN 1

IDENTIFIER

ADV7194

LQFP

TOP VIEW

(Not to Scale)

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

60 RESET

59 PAL_NTSC

58 RSET1

57 VREF

56 COMP 1

55 DAC A

54 DAC B

53 VAA

52 AGND

51 DAC C

50 DAC D

49 AGND

48 VAA

47 DAC E

46 DAC F

45 COMP 2

44 RSET2

43 DGND

42 ALSB

41 SCRESET/RTC/TR

Model

ADV7194KST

ORDERING GUIDE

Temperature Range

0°C to 70°C

Package Description

80-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 ADV7194 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.

REV. A

–9–

Package Option

ST-80

WARNING!

ESD SENSITIVE DEVICE

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