ADV7170KS Просмотр технического описания (PDF) - Analog Devices

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производитель

ADV7170KS

Digital PAL/NTSC Video Encoder with 10-Bit SSAF™ and Advanced Power Management

Analog Devices 

ADV7170/ADV7171

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

Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . +260°C

Analog Outputs to GND2␣ . . . . . . . . . . . GND – 0.5 V to VAA

Table I. Allowable Operating Conditions for KS and SU

Package Options

Conditions

4 DAC ON Double 75R1

4 DAC ON Low Power2

KS

3V

5V

Yes Yes

Yes Yes

SU

3V

5V

Yes

No

Yes

No

NOTES

4 DAC ON Buffering3

Yes

Yes

Yes

Yes

1Stresses above those listed under Absolute Maximum Ratings may cause permanent

damage to the device. This is a stress rating only; functional operation of the device 3 DAC ON Double 75R

Yes

Yes

Yes

No

at these or any other conditions above those listed in the operational sections of this 3 DAC ON Low Power

Yes

Yes

Yes

Yes

specification is not implied. Exposure to absolute maximum rating conditions for 3 DAC ON Buffering

extended periods may affect device reliability.

Yes

Yes

Yes

Yes

2Analog output short circuit to any power supply or common can be of an indefinite 2 DAC ON Double 75R

Yes

Yes

Yes

Yes

duration.

2 DAC ON Low Power

Yes

Yes

Yes

Yes

PACKAGE THERMAL PERFORMANCE

4 DAC ON Buffering

Yes

Yes

Yes

Yes

The 44-PQFP package used for this device takes advantage of

an ADI patented thermal coastline lead frame construction. This

maximizes heat transfer into the leads and reduces the package

thermal resistance.

The junction-to-ambient (θJA) thermal resistance in still air on a

four-layer PCB is 35.5°C/W. The junction-to-case thermal resis-

NOTES

1DAC ON Double 75R refers to a condition where the DACs are terminated in

a double 75R load and low power mode is disabled.

2DAC ON Low Power refers to a condition where the DACs are terminated in a

double 75R load and low power mode is enabled.

3DAC ON Buffering refers to a condition where the DAC current is reduced to

5 mA and external buffers are used to drive the video load.

tance (θJC) is 13.75°C/W.

ORDERING GUIDE

Model

ADV7170KS

ADV7170SU

ADV7171KS

ADV7171SU

Temperature

Range

0°C to +70°C

0°C to +70°C

0°C to +70°C

0°C to +70°C

Package

Descriptions

Plastic Quad Flatpack

Thin Plastic Quad Flatpack

Plastic Quad Flatpack

Thin Plastic Quad Flatpack

Package

Options

S-44

SU-44

S-44

SU-44

PIN CONFIGURATIONS

44 43 42 41 40 39 38 37 36 35 34

VAA 1

P5 2

PIN 1

IDENTIFIER

33 VREF

32 DAC A

P6 3

31 DAC B

P7 4

P8 5

P9 6

P10 7

P11 8

P12 9

ADV7170/ADV7171

PQFP/TQFP

TOP VIEW

(Not to Scale)

30 VAA

29 GND

28 VAA

27 DAC D

26 DAC C

25 COMP

GND 10

24 SDATA

VAA 11

23 SCLOCK

12 13 14 15 16 17 18 19 20 21 22

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 ADV7170/ADV7171 feature proprietary ESD protection circuitry, permanent

damage may occur on devices subjected to high energy electrostatic discharges. Therefore, pr oper

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

–8–

WARNING!

ESD SENSITIVE DEVICE

REV. 0

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