LM1267
Active Video Signal Electrical Characteristics
Symbol
A
V Track
Parameter
Gain Change between
Amplifiers
ABL Control Upper Limit
ABL Control Voltage Active
Range
ABL Control Range
ABL Input Bias Current during
ABL
ABL Input Current Clamp Sink
Capability
Clamp Gate Low Input Voltage
Clamp Gate High Input Voltage
Clamp Gate Input Current
Back Porch Clamp Pulse Width
End of Clamp Pulse to Start of
Active Video
Input Resistance
Input Bias Current
V
Ref
Output Voltage
Spot Killer Voltage
Conditions
(Continued)
Unless otherwise noted: T
A
= 25˚C, V
CC
= +5V, V
IN
= 0.7V, V
ABL
= V
CC
, C
L
= 8 pF, Video Output = 2 V
P-P
.
Min
(Note 7)
Typ
(Note 6)
Max
(Note 7)
Units
dB
Tracking when Changing from
Test Setting 8 to Test Setting 5
(Note 11)
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)
Clamp Comparators Off
Clamp Comparators On
V
23
= 0V to V
CC
− 1V
(Note 15)
Limit is guaranteed by design
Test Setting (4)
Test Setting (4)
10 kΩ, 1% Resistor; Pin 10 to
GND
V
CC
Adjusted to Activate
1.25
3.6
2.6
−5
200
200
±
0.5
5
2
−8
0
10
1
1.4
0.1
10
V
ABL TH
V
ABL Range
∆A
ABL
I
ABL Active
I
ABL Max
V
Clamp Max
V
Clamp Min
I
Clamp
t
PW Clamp
t
Clamp-Video
R
In-Video
I
In-Video
V
Ref
Out
V
Spot
V
V
dB
µA
mA
V
V
µA
ns
nsec
20
0.1
1.40
4.0
10
1.55
4.25
MΩ
µA
V
V
OSD Electrical Characteristics
Unless otherwise noted: T
A
= 25˚C, V
CC
= +5V, V
IN
= 0.7V, V
ABL
= V
CC
, C
L
= 8 pF, Video Signal Output = 2 V
P-P
, Test Set-
ting 8.
Symbol
V
OSD-L
V
OSD-H
I
OSD
V
OSD-Sel-L
V
OSD-Sel-H
I
OSD-Sel
∆V
O-OSD(Blk)
Parameter
OSD Input Low Input
Operating Range
OSD Input High Input
Operating Range
OSD Input Current
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 Variation between
Channels
Conditions
OSD Inputs are Selected
OSD Inputs are Selected
V
OSD
= 0V to V
CC
− 1V
Video Inputs are Selected
OSD Inputs are Selected
V
OSD-Sel
= 0V to V
CC
− 1V
Register 08 = 18, Minimum
Video Black Level
Register 08 = 18, Minimum
Video Black Level
Register 08 = 18, Minimum
Video Black Level
Register 08 = 08
Register 08 Changed from 18
to 08
3
Min
(Note 7)
Typ
(Note 6)
Max
(Note 7)
1.2
Units
V
V
2.5
−5
0.1
10
1.2
2.5
−5
0.1
10
µA
V
V
µA
mV
±
45
±
150
V
O-OSD(Blk)
−100
0
+100
mV
V
OSD-out
∆V
OSD-out
V
OSD-out
(Track)
75
58
88
63
100
68
%
%
%
±
3.0
±
5.0
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