参数资料
型号: LM1283N
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 音频/视频放大
英文描述: 140 MHz RGB Video Amplifier System with On Screen Display (OSD)
中文描述: 3 CHANNEL, VIDEO AMPLIFIER, PDIP28
封装: 0.600 IINCH, PLASTIC, DIP-28
文件页数: 3/13页
文件大小: 401K
代理商: LM1283N
AC Electrical Characteristics
See AC Test Circuit (Figure 6), T
= 25C, V
= V
= 12V; V
4
= 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, V
IN
= 400 mV
PP
10.0
7.0
V/V
(min)
dB (min)
dB
dB
dB
dB
dB
dB
%
V
drive
= 4V
Ref: A
V
max, V
13
= 2V
Ref: A
V
max, V
13
= 0.25V
Ref: A
V
max, V
drive
= 2V
Ref: A
V
max, V
drive
= 0.25V
V
13
= 4V, V
drive
= 4V (Note 9)
V
13
= 4V to 2V (Notes 9, 10)
V
O
= 1 V
PP
, f = 10 kHz
V
13
= 4V, V
drive
= 3V,
V
O
= 4 V
PP
V
O
= 4 V
PP
V
O
= 4 V
PP
V
13
= 4V (Note 13)
V
13
= 4V (Notes 11, 13)
Blank Output = 1 V
PP
Blank Output = 1 V
PP
Blank Output = 1 V
PP
Blank Output = 1 V
PP
(Note 14)
20.0
6
24
4.5
10
±
0.2
±
0.2
1
16.9
A
V 2V
A
V 0.25V
Drive
2V
Drive
0.25V
A
V match
A
V track
THD
f(3 dB)
Contrast Attenuation
@
2V
Contrast Attenuation
@
0.25V
Drive Attenuation
@
2V
Drive Attenuation
@
0.25V
Absolute Gain Match
@
A
V
max
Gain Change between Amplifiers
Video Amplifier Distortion
Video Amplifier Bandwidth
(Notes 11, 12)
Video Output Rise Time (Note 11)
Video Output Fall Time (Note 11)
Video Amplifier 10 kHz Isolation
Video Amplifier 10 MHz Isolation
Blank Output Rise Time (Note 11)
Blank Output Fall Time (Note 11)
End of Blanking Propagation Delay
Start of Blanking Propagation Delay
Back Porch Clamp Pulse Width
140
MHz
t
r
(Video)
t
f
(Video)
V
sep
10 kHz
V
sep
10 MHz
t
r
(Blank)
t
f
(Blank)
t
r-prop
(Blank)
t
f-prop
(Blank)
T
pw
(Clamp)
2.3
3.3
70
50
8
14
23
20
ns
ns
dB
dB
ns
ns
ns
ns
200
ns (min)
OSD Electrical Characteristics
See DC Test Circuit (Figure 5), T
= 25C; V
CC1
= V
CC2
= 12V; V
13
= 4V; V
14
= 4V; V
16
= 4V; V
Drive
= 4V; V
4
= 4V; V
15
=
0V; V
25
= 1V unless otherwise stated
Symbol
Parameter
Conditions
Typical
(Note 5)
1.2
1.6
1.2
1.6
3.0
0.001
Limit
(Note 6)
0.4
2.0
0.8
2.0
6.0
1.0
Units
V
OSDI
V
OSDh
V
4l
V
4h
I
4l
I
4h
V
O-OSD(1V)
OSD Input Low Input Voltage
OSD Input High Input Voltage
OSD Select Low Input Voltage
OSD Select High Input Voltage
OSD Select Low Input Current
OSD Select High Input Current
OSD
Black Level Output Voltage,
Difference from Video Output
OSD Output Voltage V
PP
OSD Output V
PP
Attenuation
Output Match between Channels
Output Variation between Channels
Video to OSD Switch Time (Note
11)
OSD to Video Switch Time (Note
11)
Video to OSD Propagation Delay
OSD to Video Propagation Delay
OSD Rise Time at V
O
(Note 11)
OSD Fall Time at V
O
(Note 11)
Starting OSD Propagation Delay
V (max)
V (min)
V (max)
V (min)
μA (max)
μA (min)
Video Inputs are Selected
OSD Inputs are Selected
V
4
= 0V
V
4
= 12V
V
25
= 1V
±
150
mV
V
OSD-out
V
OSD-out
V
OSD-out match
V
OSD-out track
t
r
(OSD S)
V
14
= 4V, V
Drive
= 2V
V
14
= 2V, V
Drive
= 2V
V
14
= 4V, V
Drive
= 2V
V
14
= 4V to 2V, V
Drive
= 2V
V
1
= V
2
= V
3
= 4V (Note 16)
5.0
50
±
2.0
±
2.0
V
PP
30
% (min)
%
%
4
ns
t
f
(OSD S)
V
1
= V
2
= V
3
= 4V (Note 16)
11
ns
t
r-prop
(OSD S)
t
f-prop
(OSD S)
t
r
(OSD)
t
f
(OSD)
t
r-prop
(OSD)
V
1
= V
2
= V
3
= V
13
= V
14
= 4V
V
1
= V
2
= V
3
= V
13
= V
14
= 4V
V
14
= 4V; V
25
= 1V
V
14
= 4V; V
25
= 1V
V
14
= 4V; V
25
= 1V
11
12
4
10
6.5
ns
ns
ns
ns
ns
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