參數資料
型號： LM1262NA/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
文件頁數： 15/20頁
文件大?。?/td> 1122K
代理商： LM1262NA/NOPB
OSD Electrical Characteristics (Continued)
Unless otherwise noted: T
A = 25C, VCC = +5V, VIN = 0.7V, VABL =VCC,CL = 5 pF, Video Signal Output = 2VP-P, Test Set-
ting 8.
Symbol
Parameter
Conditions
Min
(Note 7)
Typ
(Note 6)
Max
(Note 7)
Units
V
OSD-Sel-L
OSD Select Low Input
Operating Range
Video Inputs are Selected
1.2
V
OSD-Sel-H
OSD Select High Input
Operating Range
OSD Inputs are Selected
3.5
V
I
OSD-Sel
OSD Select Input Current
V
OSD-Sel = 0VtoVCC 1V
5
0.1
10
A
V
O-OSD(Blk)
OSD
Black Level Output
Voltage, Difference from Video
Output
Register 08 = 18, Minimum
Video Black Level
±45
±150
mV
V
O-OSD(Blk)
Range of OSD Black Level
Output Voltage between the 3
Channels
Register 08 = 18, Minimum
Video Black Level
100
0
+100
mV
V
OSD-out
OSD Output Voltage, Percent
of Maximum Video Out
Register 08 = 18, Minimum
Video Black Level
85
95
105
%
V
OSD-out
OSD Output V
P-P Attenuation
Register 08 = 08
52
57
62
%
V
OSD-out
(Match)
Output Match between
Channels
Register 08 = 18
±5.0
%
V
OSD-out
(Track)
Output Variation between
Channels
Register 08 Changed from 18
to 08
±3.0
±5.0
%
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 = 5 pF, Video Signal Output = 2VP-P. The follow-
ing 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
2.05
2.40
2.75
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 = 5 pF, Video Output = 2VP-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
1.5
V
h(I
2C)
I
2C High Input Voltage
SDA or SCL Inputs
3.0
V
LM1262
www.national.com
4
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