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LM1283 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LM1283
Description  140 MHz RGB Video Amplifier System with On Screen Display (OSD)
PDF  13 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM1283 Datasheet(HTML) 3 Page - National Semiconductor (TI)

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AC Electrical Characteristics
See AC Test Circuit (
Figure 6), T
A = 25˚C, VCC1 = VCC2 = 12V; V4 = 0V. Manually adjust Video Output pins 18, 20, and 23 to
4V DC for the AC test unless otherwise stated (Note 15)
Symbol
Parameter
Conditions
Typical
(Note 5)
Limit
(Note 6)
Units
A
V max
Video Amplifier Gain
V
13 = 4V, VIN = 400 mVPP
10.0
7.0
V/V
(min)
V
drive = 4V
20.0
16.9
dB (min)
∆A
V2V
Contrast Attenuation @ 2V
Ref: A
V max, V13 = 2V
−6
dB
∆A
V 0.25V
Contrast Attenuation @ 0.25V
Ref: A
V max, V13 = 0.25V
−24
dB
∆Drive
2V
Drive Attenuation @ 2V
Ref: A
V max, Vdrive = 2V
−4.5
dB
∆Drive
0.25V
Drive Attenuation @ 0.25V
Ref: A
V max, Vdrive = 0.25V
−10
dB
A
V match
Absolute Gain Match @ A
V max
V
13 = 4V, Vdrive = 4V (Note 9)
±0.2
dB
A
V track
Gain Change between Amplifiers
V
13 = 4V to 2V (Notes 9, 10)
±0.2
dB
THD
Video Amplifier Distortion
V
O = 1VPP,f = 10 kHz
1
%
f(−3 dB)
Video Amplifier Bandwidth
(Notes 11, 12)
V
13 = 4V, Vdrive = 3V,
V
O = 4VPP
140
MHz
t
r (Video)
Video Output Rise Time (Note 11)
V
O = 4VPP
2.3
ns
t
f (Video)
Video Output Fall Time (Note 11)
V
O = 4VPP
3.3
ns
V
sep 10 kHz
Video Amplifier 10 kHz Isolation
V
13 = 4V (Note 13)
−70
dB
V
sep 10 MHz
Video Amplifier 10 MHz Isolation
V
13 = 4V (Notes 11, 13)
−50
dB
t
r (Blank)
Blank Output Rise Time (Note 11)
Blank Output = 1V
PP
8ns
t
f (Blank)
Blank Output Fall Time (Note 11)
Blank Output = 1V
PP
14
ns
t
r-prop(Blank)
End of Blanking Propagation Delay
Blank Output = 1V
PP
23
ns
t
f-prop (Blank)
Start of Blanking Propagation Delay
Blank Output = 1V
PP
20
ns
T
pw (Clamp)
Back Porch Clamp Pulse Width
(Note 14)
200
ns (min)
OSD Electrical Characteristics
See DC Test Circuit (
Figure 5), T
A = 25˚C; VCC1 = VCC2 = 12V; V13 = 4V; V14 = 4V; V16 = 4V; VDrive = 4V; V4 = 4V; V15 =
0V; V
25 = 1V unless otherwise stated
Symbol
Parameter
Conditions
Typical
(Note 5)
Limit
(Note 6)
Units
V
OSDI
OSD Input Low Input Voltage
1.2
0.4
V (max)
V
OSDh
OSD Input High Input Voltage
1.6
2.0
V (min)
V
4l
OSD Select Low Input Voltage
Video Inputs are Selected
1.2
0.8
V (max)
V
4h
OSD Select High Input Voltage
OSD Inputs are Selected
1.6
2.0
V (min)
I
4l
OSD Select Low Input Current
V
4 = 0V
−3.0
−6.0
µA (max)
I
4h
OSD Select High Input Current
V
4 = 12V
0.001
1.0
µA (min)
∆V
O-OSD(1V)
OSD
∆Black Level Output Voltage,
Difference from Video Output
V
25 = 1V
±150
mV
V
OSD-out
OSD Output Voltage V
PP
V
14 = 4V, VDrive = 2V
5.0
V
PP
∆V
OSD-out
OSD Output V
PP Attenuation
V
14 = 2V, VDrive = 2V
50
30
% (min)
∆V
OSD-out match
Output Match between Channels
V
14 = 4V, VDrive = 2V
±2.0
%
V
OSD-out track
Output Variation between Channels
V
14 = 4V to 2V, VDrive = 2V
±2.0
%
t
r (OSD S)
Video to OSD Switch Time (Note
11)
V
1 = V2 = V3 = 4V (Note 16)
4ns
t
f(OSD S)
OSD to Video Switch Time (Note
11)
V
1 = V2 = V3 = 4V (Note 16)
11
ns
t
r-prop (OSD S)
Video to OSD Propagation Delay
V
1 = V2 = V3 = V13 = V14 = 4V
11
ns
t
f-prop (OSD S)
OSD to Video Propagation Delay
V
1 = V2 = V3 = V13 = V14 = 4V
12
ns
t
r (OSD)
OSD Rise Time at V
O (Note 11)
V
14 = 4V; V25 = 1V
4
ns
t
f (OSD)
OSD Fall Time at V
O (Note 11)
V
14 = 4V; V25 = 1V
10
ns
t
r-prop (OSD)
Starting OSD Propagation Delay
V
14 = 4V; V25 = 1V
6.5
ns
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