參數(shù)資料
型號： LM1262NA
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 音頻／視頻放大
英文描述： 200 MHz I2C Compatible RGB Video Amplifier System with OSD and 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： 1122K
代理商： LM1262NA
OSD Electrical Characteristics
(Continued)
Unless otherwise noted: T
A
= 25C, V
CC
= +5V, V
IN
= 0.7V, V
ABL
= V
CC
, C
L
= 5 pF, Video Signal Output = 2V
P-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
OSD Select High Input
Operating Range
OSD Select Input Current
OSD
Black Level Output
Voltage, Difference from Video
Output
Range of OSD Black Level
Output Voltage between the 3
Channels
OSD Output Voltage, Percent
of Maximum Video Out
OSD Output V
P-P
Attenuation
Output Match between
Channels
Output Variation between
Channels
Output Skew Time between
OSD and OSD Select
Video Feedthrough into OSD
Video Feedthrough into OSD
Video Inputs are Selected
1.2
V
V
OSD-Sel-H
OSD Inputs are Selected
3.5
V
I
OSD-Sel
V
O-OSD(Blk)
V
OSD-Sel
= 0V to V
CC
1V
Register 08 = 18, Minimum
Video Black Level
5
0.1
10
μA
±
45
±
150
mV
V
O-OSD(Blk)
Register 08 = 18, Minimum
Video Black Level
100
0
+100
mV
V
OSD-out
Register 08 = 18, Minimum
Video Black Level
Register 08 = 08
Register 08 = 18
85
95
105
%
V
OSD-out
V
OSD-out
(Match)
V
OSD-out
(Track)
t
OSD/OSD S
52
57
62
%
±
5.0
%
Register 08 Changed from 18
to 08
Measured from 50% Point on
all Waveforms
OSD Inputs = 0V
OSD Inputs = 0V
±
3.0
±
5.0
%
±
2.0
ns
V
feed
10 kHz
V
feed
10 MHz
70
60
dB
dB
External DAC Signals Electrical Characteristics
Unless otherwise noted: T
= 25C, V
CC
= +5V, V
IN
= 0.7V, V
ABL
= V
CC
, C
L
= 5 pF, Video Signal Output = 2V
P-P
. The follow-
ing 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
2.05
2.40
2.75
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
= 5 pF, Video Output = 2V
P-P
.
Symbol
Parameter
Conditions
Min
(Note 7)
Typ
(Note 6)
Max
(Note 7)
1.5
Units
V
l
(I
2
C)
V
h
(I
2
C)
I
2
C Low Input Voltage
I
2
C High Input Voltage
SDA or SCL Inputs
SDA or SCL Inputs
V
V
3.0
L
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