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參數(shù)資料
| 型號： | LM1269NA |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 110 MHz I2C Compatible RGB Video Amplifier System with OSD & DACs |
| 中文描述： | 3 CHANNEL, VIDEO PREAMPLIFIER, PDIP24 |
| 封裝： | PLASTIC, DIP-24 |
| 文件頁數(shù)： | 4/20頁 |
| 文件大小： | 1676K |
| 代理商： | LM1269NA |
OSD Electrical Characteristics
(Continued)
Unless otherwise noted: T
A
= 25C, V
CC
= +5V, V
IN
= 0.7V, V
ABL
= V
CC
, C
L
= 8 pF, Video Signal Output = 2 V
P-P
, Test Set-
ting 8.
Symbol
Parameter
Conditions
Min
(Note 7)
Typ
(Note 6)
Max
(Note 7)
Units
t
OSD/OSD S
Output Skew Time between
OSD and OSD Select
Video Feedthrough into OSD
Video Feedthrough into OSD
Measured from 50% Point on
all Waveforms
OSD Inputs = 0V
OSD Inputs = 0V
±
2.0
ns
V
feed
10 kHz
V
feed
10 MHz
70
60
dB
dB
External DAC Signals Electrical Characteristics
Unless otherwise noted: T
A
= 25C, V
CC
= +5V, V
IN
= 0.7V, V
ABL
= V
CC
, C
L
= 8 pF, Video Signal Output = 2 V
P-P
. The fol-
lowing apply for all four external DACs.
Symbol
Parameter
Conditions
Min
(Note 7)
Typ
(Note 6)
0.5
Max
(Note 7)
0.75
Units
V
Min DAC
V
Max DAC
Mode 00
V
Max DAC
Mode 11
V
Max DAC
(Temp)
V
Max DAC
(V
CC
)
Linearity
Min DAC Output Voltage
Max DAC Output Voltage
Value = 00h
Value = FFh, DCF[1:0] = 00h
(no load)
Value = FFh, DCF[1:0] = 11h,
DAC4 Value = 00h
0C
<
T
<
70C ambient
V
3.6
4.2
V
Max Output Voltage of DACs
1–3 in DCF Mode 11
Variation of any DAC output
voltage with temperature
Variation of any DAC output
voltage with V
CC
Linearity of DAC Over its
Range
Monotonicity of the DAC
1.85
2.1
2.35
V
±
0.5
mV/deg
4.75V
<
V
CC
<
5.25V
±
50
mV/V
5
%
Monotonicity
Excluding dead zones at limits
of DAC
±
0.5
LSB
External Interface Signals Electrical Characteristics
Unless otherwise noted: T
A
= 25C, V
CC
= +5V, V
IN
= 0.7V, V
ABL
= V
CC
, C
L
= 8 pF, Video Output = 2 V
P-P
.
Symbol
Parameter
Conditions
Min
(Note 7)
0.5
3.0
Typ
(Note 6)
0.5
4.0
Max
(Note 7)
1.5
5.0
Units
V
l
(I
2
C)
V
h
(I
2
C)
I
l
(I
2
C)
I
2
C Low Input Voltage
I
2
C High Input Voltage
I
2
C Low Input Current
SDA or SCL Inputs
SDA or SCL Inputs
SDA or SCL Inputs, Input
Voltage = 0V
SDA or SCL Inputs, Input
Voltage = 5V
Rising Edge of the Flyback
Signal
Falling Edge of the Flyback
Signal
V
V
1.9
2.2
2.5
μA
I
h
(I
2
C)
I
2
C High Input Current
0.3
0.6
0.9
μA
t
H-Blank on
H-Blank Time Delay from Zero
Crossing Point of H Flyback
H-Blank Time Delay from Zero
Crossing Point of H Flyback
I
In
H-Blank Detection
Threshold
Minimum—Insure Normal
Operation
Maximum—Should Not
Exceed in Normal Operation
Peak Current during Flyback
Period, Recommended Design
Range
50
ns
t
H-Blank off
50
ns
I
In Threshold
20
μA
I
In-Operating
Lowest Operating Horizontal
Frequency in Given Application
(Note 17)
30
300
μA
I
In Flyback
Operating Range for all
Horizontal Scan Frequencies,
Maximum Current Should Not
Exceed 2 mA (Note 17)
0.5
1.5
2.0
mA
Note 1:
Limits of Absolute Maximum Ratings indicate limits below which damage to the device must not occur.
Note 2:
Limits of operating ratings indicate required boundaries of conditions for which the device is functional, but may not meet specific performance limits.
L
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4
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