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ADV7177KS Folha de dados(PDF) 9 Page - Analog Devices

Nome de Peças ADV7177KS
Descrição Electrónicos  Integrated Digital CCIR-601 to PAL/NTSC Video Encoder
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Fabricante Electrônico  AD [Analog Devices]
Página de início  http://www.analog.com
Logo AD - Analog Devices

ADV7177KS Folha de dados(HTML) 9 Page - Analog Devices

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ADV7177/ADV7178
–9–
REV. 0
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
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . +260
°C
Analog Outputs to GND2
. . . . . . . . . . . . . . GND – 0.5 to VAA
NOTES
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
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.
2Analog output short circuit to any power supply or common can be of an indefinite
duration.
ORDERING GUIDE
Temperature Package
Package
Model
Range
Description
Option
ADV7178KS
0
°C to +70°C Plastic Quad Flatpack S-44
ADV7177KS
0
°C to +70°C Plastic Quad Flatpack S-44
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 ADV7177/ADV7178 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.
PIN CONFIGURATION
12 13 14 15 16 17 18 19 20 21 22
3
4
5
6
7
1
2
10
11
8
9
40 39 38
41
42
43
44
36 35 34
37
29
30
31
32
27
28
25
26
23
24
33
PIN 1
IDENTIFIER
RSET
VREF
DAC A
VAA
GND
VAA
DAC B
VAA
CLOCK/2
P5
P6
P7
P8
P9
P10
P11
P12
OSD_EN
DAC C
COMP
SDATA
SCLOCK
ADV7177/ADV7178
PQFP
TOP VIEW
(Not to Scale)
PACKAGE THERMAL PERFORMANCE
The 44-lead PQFP package used for this device has a junction-
to-ambient thermal resistance (
θ
JA) in still air on a four-layer
PCB of 53.2
°C/W. The junction-to-case thermal resistance (θ
JC)
is 18.8
°C/W.
Care must be taken when operating the part in certain condi-
tions to prevent overheating. Table I illustrates what conditions
are to be used when using the part.
Table I. Allowable Operating Conditions for ADV7177/
ADV7178 in 44-Lead PQFP Package
Condition
5 V
3 V
3 DACs ON, Double 75R
1
No
Yes
3 DACs ON, Low Power
2
Yes
Yes
3 DACs ON, Buffered
3
Yes
Yes
2 DACs ON, Double 75R
No
Yes
2 DACs ON, Low Power
Yes
Yes
2 DACs ON, Buffered
Yes
Yes
NOTES
1DAC ON, Double 75R refers to a condition where the DACs are terminated
into 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, Buffered refers to a condition where the DAC current is reduced to
5 mA and external buffers are used to drive the video loads.
WARNING!
ESD SENSITIVE DEVICE


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