參數(shù)資料
型號(hào)： 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(yè)數(shù)： 3/20頁(yè)
文件大?。?/td> 1122K
代理商： LM1262NA
Active Video Signal 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
.
Symbol
Parameter
Conditions
Min
(Note 7)
Typ
(Note 6)
Max
(Note 7)
Units
V
ABL TH
ABL Control Upper Limit
Test Setting 4, AC Input Signal
(Note 12)
Test Setting 4, AC Input Signal
(Note 12)
Test Setting 4, AC Input Signal
(Note 12)
Test Setting 4, AC Input
Signal, V
ABL
= 2V (Note 12)
Test Setting 4, AC Input Signal
(Note 12)
Vertical Blank Comparators Off
Register B set to 0x02 (Note
18)
Vertical Blank Comparators On
Register B set to 0x02 (Note
18)
V
13
= 0V, Register B set to
0x02 (Note 18)
V
13
= V
CC
, Register B set to
0x02 (Note 18)
(internal 50k resistor to ground)
Vertical Blank Comparators Off
Register B set to 0x06
Vertical Blank Comparators On
Register B set to 0x06 (Note
16)
Horizontal Clamp Comparators
On
V
23
= 0V to V
CC
1V,
Register B set to 0x06
(Note 15)
Limit is guaranteed by design
5
V
V
ABL Range
ABL Active Range Control
Voltage
ABL Control Range
2.7
V
A
ABL
-6
8
dB
I
ABL Active
ABL Input Bias Current during
ABL
ABL Input Current Clamp Sink
Capability
Vertical Blank Gate Low
Input Voltage at pin 13
0
10
μA
I
ABL Max
1
mA
V
Vert Bnk Off
1.0
V
V
Vert Bnk On
Vertical Blank Gate High
Input Voltage at pin 13
2.6
V
I
Vert Bnk Low
Vertical Blank Gate Low
Input Current at pin 13
Vertical Blank Gate High
Input Current at pin 13
-4.0
μA
I
Vert Bnk High
100
μA
V
Vert Bnk Off
Vertical Blank Gate Low
Input Voltage at pin 23
Vertical Blank Gate High
Input Voltage at pin 23
0.7
V
V
Vert Bnk On
1.2
3.2
V
V
Clamp Min
Horizontal Clamp Gate High
Input Voltage
Clamp Gate Input Current
3.8
V
I
Clamp
5
0.1
10
μA
t
PW Clamp
t
Clamp-Video
Back Porch Clamp Pulse Width
End of Clamp Pulse to Start of
Active Video
Sandcastle Clamp Pulse Width
200
ns
200
ns
t
PW SandClamp
Horizontal Clamp Comparators
On Register B set to 0x06
(Note 16)
Test Setting (4)
10 k
, 1% Resistor; Pin 10 to
GND
V
CC
Adjusted to Activate
0.20
1.20
μsec
R
In-Video
V
Ref
Out
Input Resistance
V
Ref
Output Voltage
20
M
1.25
1.40
1.55
V
V
Spot
Spot Killer Voltage
3.4
4.0
4.25
V
OSD Electrical Characteristics
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-L
OSD Input Low Input
Operating Range
OSD Input High Input
Operating Range
OSD Input Current
OSD Inputs are Selected
1.2
V
V
OSD-H
OSD Inputs are Selected
2.5
V
I
OSD
V
OSD
= 0V to V
CC
1V
5
0.1
10
μA
L
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