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ADV7128KR30 数据表(PDF) 4 Page - Analog Devices

部件名 ADV7128KR30
功能描述  CMOS 80 MHz, 10-Bit Video DAC
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADV7128KR30 数据表(HTML) 4 Page - Analog Devices

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ADV7128
REV. 0
–4–
ABSOLUTE MAXIMUM RATINGS
*
VAA to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+7 V
Voltage on Any Digital Pin . . . . . . GND –0.5 V to VAA +0.5 V
Ambient Operating Temperature (TA) . . . . . . . . 0°C to +70°C
Storage Temperature (TS) . . . . . . . . . . . . . . . –65
°C to +150°C
Junction Temperature (TJ) . . . . . . . . . . . . . . . . . . . . . +150
°C
Lead Temperature (Soldering, 10 secs) . . . . . . . . . . . . +300
°C
Vapor Phase Soldering (2 minutes) . . . . . . . . . . . . . . . +220
°C
IOUT to GND
1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to VAA
NOTES
*Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. This is a stress rating only and 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.
1Analog Output Short Circuit to any Power Supply or Common can be of an
indefinite duration.
PIN CONFIGURATION
1
2
3
7
28
27
26
22
8
9
10
21
20
19
11
12
18
17
4
5
25
24
6
23
TOP VIEW
(Not to Scale)
13
14
16
15
ADV7128
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
R
SET
COMP
GND
GND
CLOCK
V
AA
I
OUT
V
AA
V
AA
V
AA
V
AA
V
AA
V
AA
V
AA
V
AA
V
AA
V
AA
V REF
WARNING!
ESD SENSITIVE DEVICE
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 ADV7128 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.
PIN FUNCTION DESCRIPTION
Pin
Mnemonic
Function
CLOCK
Clock input (TTL compatible). The rising edge of CLOCK latches the R0–R9, G0–G9, B0–B9, SYNC and
BLANK
pixel and control inputs. It is typically the pixel clock rate of the video system. CLOCK should be driven
by a dedicated TTL buffer.
D0–D9
Data inputs (TTL compatible). Data is latched on the rising edge of CLOCK. D0 is the least significant data bit.
Unused data inputs should be connected to either the regular PCB power or ground plane.
IOUT
Current output. This high impedance current source is capable of directly driving a doubly terminated 75
coaxial cable.
RSET
Full-scale adjust control. A resistor (RSET) connected between this pin and GND, controls the magnitude of the
full-scale video signal. Note that the IRE relationships are maintained, regardless of the full-scale output current.
The relationship between RSET and the full-scale output current on IOUT is given by:
IOUT (mA) = 7,969
VREF(V)/RSET(Ω)
COMP
Compensation pin. This is a compensation pin for the internal reference amplifier. A 0.1
µF ceramic capacitor
must be connected between COMP and VAA.
VREF
Voltage reference input. An external 1.23 V voltage reference must be connected to this pin. The use of an exter-
nal resistor divider network is not recommended. A 0.1
µF decoupling ceramic capacitor should be connected be-
tween VREF and VAA.
VAA
Analog power supply (5 V
± 5%). All V
AA pins on the ADV7128 must be connected.
GND
Ground. All GND pins must be connected.


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