參數(shù)資料
型號(hào)： EVAL-ADV7173EBZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 60/60頁(yè)
文件大小： 0K
描述： BOARD EVALUATION FOR ADV7173
標(biāo)準(zhǔn)包裝： 1
系列： Advantiv®
主要目的： 視頻，視頻處理
嵌入式： 否
已用 IC / 零件： ADV7173
主要屬性： NTSC/PAL 數(shù)字視頻編碼器
次要屬性： I²C 接口
已供物品： 板
REV. B
ADV7172/ADV7173
–9–
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 ADV7172/ADV7173 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
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 V 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.
PACKAGE THERMAL PERFORMANCE
The 48-lead LQFP package is used for this device. The junc-
tion-to-ambient (
θJA) thermal resistance in still air on a four
layer PCB is 54.6
°C/W. The junction-to-case thermal resistance
(
θJC) is 16.7°C.
To reduce power consumption when using this part the user is
advised to run the part on a 3.3 V supply, turn off any unused
DACs. However, if 5 V operation is required the user can enable
Low Power mode by setting MR16 to a Logic 1. Another alter-
native way to further reduce power is to use external buffers that
dramatically reduce the DAC currents, the current can be low-
ered to as low as 5 mA (see AN-551 and Appendix 8 for more
details) from a nominal value of 36 mA.
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)
× θ
JA ] 70
°C
where
IDAC = 10 mA + (sum of the average currents consumed by each
powered-on DAC).
PIN CONFIGURATION
36
35
34
33
32
31
30
29
28
27
26
25
13 14 15 16 17 18 19 20 21 22 23 24
1
2
3
4
5
6
7
8
9
10
11
12
48 47 46 45 44
39 38 37
43 42 41 40
PIN 1
IDENTIFIER
TOP VIEW
(Not to Scale)
ALSB
HSYNC
FIELD/
VSYNC
BLANK
GND
VAA
P0
P1
P2
P3
P4
P5
P6
P7
CSO HSO
VAA
GND
V
AA
SCLOCK
SDATA
R
SET2
ADV7172/ADV7173
DAC
F
COMP1
DAC A
VAA
DAC B
VAA
GND
VAA
DAC C
DAC D
VAA
GND
DAC E
CLOCK
GND
V
AA
VSO
RESET
PAL
NTSC
CLAMP
TTXREQ
SCRESET/RTC
R
SET1
V
REF
COMP2
GND
TTX
ORDERING GUIDE
Temperature
Package
Model
Range
Description
Option
ADV7172KST
0
°C to 70°C
Plastic Thin
ST-48
Quad Flatpack
ADV7173KST
0
°C to 70°C
Plastic Thin
ST-48
Quad Flatpack
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