參數(shù)資料
型號(hào)： LM1269NA/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 音頻／視頻放大
英文描述： 3 CHANNEL, VIDEO PREAMPLIFIER, PDIP24
封裝： PLASTIC, DIP-24
文件頁(yè)數(shù)： 15/20頁(yè)
文件大小： 1676K
代理商： LM1269NA/NOPB
OSD Electrical Characteristics (Continued)
Unless otherwise noted: T
A = 25C, VCC = +5V, VIN = 0.7V, VABL =VCC,CL = 8 pF, Video Signal Output = 2 VP-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
Measured from 50% Point on
all Waveforms
±2.0
ns
V
feed 10 kHz
Video Feedthrough into OSD
OSD Inputs = 0V
70
dB
V
feed 10 MHz
Video Feedthrough into OSD
OSD Inputs = 0V
60
dB
External DAC Signals Electrical Characteristics
Unless otherwise noted: T
A = 25C, VCC = +5V, VIN = 0.7V, VABL =VCC,CL = 8 pF, Video Signal Output = 2 VP-P. The fol-
lowing apply for all four external DACs.
Symbol
Parameter
Conditions
Min
(Note 7)
Typ
(Note 6)
Max
(Note 7)
Units
V
Min DAC
Min DAC Output Voltage
Value = 00h
0.5
0.75
V
Max DAC
Mode 00
Max DAC Output Voltage
Value = FFh, DCF[1:0] = 00h
(no load)
3.6
4.2
V
Max DAC
Mode 11
Max Output Voltage of DACs
1–3 in DCF Mode 11
Value = FFh, DCF[1:0] = 11h,
DAC4 Value = 00h
1.85
2.1
2.35
V
Max DAC
(Temp)
Variation of any DAC output
voltage with temperature
0C<T<70C ambient
±0.5
mV/deg
V
Max DAC
(V
CC)
Variation of any DAC output
voltage with V
CC
4.75V<V
CC<5.25V
±50
mV/V
Linearity
Linearity of DAC Over its
Range
5%
Monotonicity
Monotonicity of the DAC
Excluding dead zones at limits
of DAC
±0.5
LSB
External Interface Signals Electrical Characteristics
Unless otherwise noted: T
A = 25C, VCC = +5V, VIN = 0.7V, VABL =VCC,CL = 8 pF, Video Output = 2 VP-P.
Symbol
Parameter
Conditions
Min
(Note 7)
Typ
(Note 6)
Max
(Note 7)
Units
V
l(I
2C)
I
2C Low Input Voltage
SDA or SCL Inputs
0.5
1.5
V
h(I
2C)
I
2C High Input Voltage
SDA or SCL Inputs
3.0
4.0
5.0
V
I
l(I
2C)
I
2C Low Input Current
SDA or SCL Inputs, Input
Voltage = 0V
1.9
2.2
2.5
A
I
h(I
2C)
I
2C High Input Current
SDA or SCL Inputs, Input
Voltage = 5V
0.3
0.6
0.9
A
t
H-Blank on
H-Blank Time Delay from Zero
Crossing Point of H Flyback
Rising Edge of the Flyback
Signal
50
ns
t
H-Blank off
H-Blank Time Delay from Zero
Crossing Point of H Flyback
Falling Edge of the Flyback
Signal
50
ns
I
In Threshold
I
In H-Blank Detection
Threshold
20
A
I
In-Operating
Minimum — Insure Normal
Operation
Maximum — Should Not
Exceed in Normal Operation
Lowest Operating Horizontal
Frequency in Given Application
(Note 17)
30
300
A
I
In Flyback
Peak Current during Flyback
Period, Recommended Design
Range
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.
LM1269
www.national.com
4
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