參數(shù)資料
型號(hào)： AK8812
廠商： Asahi Kasei Microsystems Co.,Ltd
英文描述： NTSC/PAL Digital Video Encoder
中文描述： NTSC / PAL數(shù)字視頻編碼器
文件頁(yè)數(shù)： 6/36頁(yè)
文件大?。?/td> 377K
代理商： AK8812
ASAHI KASEI
[AK8811/12]
Rev.1.1 2000/01
6
DC Characteristics
[Power Supply:3.3V Temperature:25
°
C]
Parameter
Symbol
Min
Max
Units
Conditions
Digital Input High Voltage
VIH1
0.7VDD
V
Note1)
Digital Input Low Voltage
VIL1
0.3VDD
V
Note1)
Digital Input leak Current
IL
±
10
uA
Note1)
Digital Output High Voltage
VOH
2.4
V
IOH =
-
1mA
Note 2)
Digital Output Low Voltage
Digital
Maximum
Capacitance
I
2
C Input High Voltage
I
2
C(SDA,SCL)
I
2
C Input Low Voltage
I
2
C(SDA,SCL)
VOL1
0.4
V
IOL = 2mA
Note 2)
Load
20
pF
VIH2
0.7VDD
V
VIL2
0.3VDD
V
I
2
C(SDA) Output Voltage
VOL2
0.4
V
IOL = 3mA
Note 1) D[9:0],FID/VSYNC, HSYNC, SYSCLK, /RESET pin
Note 2) FID/VSYNC, HSYNC pin
Note ) Connected Test Pin to Ground, SELA and SYSINV Pin are desired polarity.
Analog Characteristics and Dissipation Current
[
Power Supply:3.3V Temperature:25
°
C]
Parameter
Min
Typ
Max
Units
Conditions
DAC Resolution
10
bit
DAC Integral linearity error
±
0.6
±
2
LSB
DAC Differential linearity error
±
0.4
±
1
LSB
DAC Output Full Scale Voltage
1.21
1.28
1.38
V
Note1)
DAC Output offset Voltage
5.0
mV
Note2)
Unbalances between DACs
±
1
±
5
%
Note3)
Isolation between DACs
50
dB
1MHz Full Scale
DAC Load Capacitance
30
pF
Note4)
Internal Reference Voltage
1.17
1.235
1.33
V
Internal Reference Drift
50
ppm/
°
C
DAC Current (Active mode)
15
mA
Note5)
DAC Current (Sleep mode)
10
uA
Note6)
Total Current
50
72
mA
Note7)
Note 1) Under the condition of output load 390
, IREF pin with 12k
, using internal reference. The output full-scale
current IOUT is calculated as Full scale output voltage (typ. 1.28V) /390
=typ. 3.3mA.
Note 2) DAC output when feeding code of 0 (Decimal).
Note 3) Deviation between the DAC output when feeding 1V generating code of 800(Decimal).
Note 4) The value is a design target. This value is not tested.
Note 5) All DACs are operating.
Note 6) All DACs are turned off with no system clock.
Note 7) NTSC internal color bar with 3ch DACs operation and slave mode operation. DAC output pins is connected with
only 390
load.
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