參數(shù)資料
型號(hào)： LM1276AAA/NA
廠(chǎng)商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： 音頻／視頻放大
英文描述： 1 CHANNEL, VIDEO PREAMPLIFIER, PDIP28
封裝： PLASTIC, DIP-28
文件頁(yè)數(shù)： 45/50頁(yè)
文件大?。?/td> 6075K
代理商： LM1276AAA/NA
Symbol
Parameter
Conditions
Min
Typ
Max
Units
A
V Match
Maximum Gain Match between
Channels
Test Setting 3, AC input signal.
±0.5
dB
A
V Track
Gain Change between Channels
Tracking when changing from Test
Setting 8 to Test Setting 5. See (Note
11).
±0.5
dB
Vid
Threshold
Video Threshold
Normal Operation
80
mV
V
ABL TH
ABL Control Range Upper Limit
(Note 12), Test Setting 4, AC input
signal.
4.8
V
ABL Range
ABL Gain Reduction Range
(Note 12), Test Setting 4, AC input
signal.
2.8
V
A
V 3.5/AV Max
ABL Gain Reduction at 3.5V
(Note 12), Test Setting 4, AC input
signal. V
ABL = 3.5V
2
dB
A
V 2.0/AV Max
ABL Gain Reduction at 2.0V
(Note 12), Test Setting 4, AC input
signal. V
ABL = 2.0V
12
dB
I
ABL Max
ABL Input Current Sink Capability
(Note 12), Test Setting 4, AC input
signal.
2.5
mA
V
ABL Max
Maximum ABL Input Voltage during
Clamping
(Note 12), Test Setting 4, AC input
signal. I
ABL = IABL MAX
V
CC + 0.1
V
A
V ABL Track
ABL Gain Tracking Error
(Note 9), Test Setting 4, 0.7 V
P-P input
signal, ABL voltage set to 4.5V and
2.5V.
5.0
%
R
IP
Minimum Input Resistance (pins 5,
6, 7)
Test Setting 4.
20
M
OSD Electrical Characteristics
Unless otherwise noted: T
A = 25°C, VCC = +5.0V. See (Note 7) for Min and Max parameters and (Note 6) for Typicals.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
V
OSDHIGH max
Maximum OSD Level with OSD
Contrast 111
Palette Set at 111, OSD Contrast =
111, Test Setting 3
3.02
V
OSDHIGH 110
Maximum OSD Level with OSD
Contrast 110
Palette Set at 111, OSD Contrast =
110, Test Setting 3
2.91
V
OSDHIGH 101
Maximum OSD Level with OSD
Contrast 101
Palette Set at 111, OSD Contrast =
01, Test Setting 3
2.79
V
OSDHIGH 100
Maximum OSD Level with OSD
Contrast 100
Palette Set at 111, OSD Contrast =
100, Test Setting 3
2.67
V
OSDHIGH 011
Maximum OSD Level with OSD
Contrast 011
Palette Set at 111, OSD Contrast =
011, Test Setting 3
2.55
V
OSDHIGH 010
Maximum OSD Level with OSD
Contrast 010
Palette Set at 111, OSD Contrast =
010, Test Setting 3
2.43
V
OSDHIGH 001
Maximum OSD Level with OSD
Contrast 001
Palette Set at 111, OSD Contrast =
001, Test Setting 3
2.32
V
OSDHIGH 000
Maximum OSD Level with OSD
Contrast 000
Palette Set at 111, OSD Contrast =
000, Test Setting 3
2.20
V
ΔV
OSD (Black)
Difference between OSD Black Level
and Video Black Level (same
channel)
Register 0x8438=0x18, Input Video =
Black, Same Channel, Test Setting 8
±130
mV
ΔV
OSD-black
(Track)
Difference between OSD Black Level
and Video Black Level between any 2
channels
Register 0x8438=0x18, Input Video =
Black, Same Channel, Test Setting 8
±115
mV
ΔV
OSD (White)
Output Match between Channels
Palette Set at 111, OSD Contrast =
11, Maximum difference between R,
G and B
3
%
V
OSD-out (Track)
Output Variation between Channels
OSD contrast varied from max to min
3
%
5
www.national.com
200969 Version 2 Revision 4
Print Date/Time: 2011/07/11 11:20:12
LM1276
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