LM1238 National Semiconductor Corporation, LM1238 Datasheet - Page 2

• Manufacturer Part Number: LM1238
• Description: 110 Mhz I2c Compatible Rgb Preamplifier With Internal Simple Osd Generator And 4 Dacs
• Manufacturer: National Semiconductor Corporation

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I
I
V
V
V
LE
t
OS
t
OS
BW
V
V
A
A
A
A
A
A
S
S-PS
r
f
O BLK
O BLK STEP
O
SEP
SEP
V
V
V
V
V
V
Absolute Maximum Ratings
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Video Signal Electrical Characteristics
Unless otherwise noted: T
numbers refer to the definitions in Table 1. See Note 7 for Min and Max parameters and Note 6 for Typicals.
Supply Voltage, Pins 15 and 19
Peak Video DC Output Source Current
Voltage at Any Input Pin (V
Thermal Resistance to Ambient (θ
Power Dissipation (P
Thermal Resistance to case (θ
Junction Temperature (T
ESD Susceptibility (Note 4)
R
F
Max
C-50%
Min/A
G-50%
G-Min
Match
Max
(Any One Amp) Pins 18, 19 or 20
(Above 25˚C Derate Based
on θ
Symbol
10 kHz
10 MHz
V
JA
Max
and T
J
)
Supply Current
Supply Current, Power Save Mode
Active Video Black Level Output
Voltage
Active Video Black Level Step Size
Maximum Video Output Voltage
Linearity Error
Video Rise Time
Rising Edge Overshoot
Video Fall Time
Falling Edge Overshoot
Channel bandwidth (−3 dB)
Video Amplifier 10 kHz Isolation
Video Amplifier 10 MHz Isolation
Maximum Voltage Gain
Contrast Attenuation
Maximum Contrast Attenuation in
dB
Gain Attenuation
Maximum Gain Attenuation
Maximum Gain Match between
channels
D
)
J
)
A
IN
= 25˚C, V
)
Parameter
JC
)
JA
@
)
50%
CC
@
50%
= +5.0V, V
V
CC
(Notes 1, 3)
+0.5
IN
>
51˚C/W
32˚C/W
1.5 mA
Test Setting 1, both supplies, no
output loading. See Note 8.
Test Setting 1, both supplies, no
output loading. See Note 8.
Test Setting 4, no AC input signal,
DC offset (register 0x8438 set to
0xd5).
Test Setting 4, no AC input signal.
Test Setting 3, Video in = 0.70 V
Test Setting 4, staircase input
signal (see Note 9).
Note 5, 10% to 90%, Test Setting
4, AC input signal.
Note 5, Test Setting 4, AC input
signal.
Note 5, 90% to 10%, Test Setting
4, AC input signal.
Note 5, Test Setting 4, AC input
signal.
Note 5, Test Setting 4, AC input
signal.
Note 14, Test Setting 8.
Note 14, Test Setting 8.
Test Setting 8, AC input signal.
Test Setting 5, AC input signal.
Test Setting 2, AC input signal.
Test Setting 6, AC input signal.
Test Setting 7, AC input signal.
Test Setting 3, AC input signal.
= 0.70 V
3.5 kV
150˚C
V
−0.5V
2.4W
6.0V
IN
>
2
P-P
, V
Operating Ratings
Conditions
Video Inputs
ESD Machine Model (Note 13)
Storage Temperature
Lead Temperature (Soldering, 10 sec.)
Ambient Temperature
Range
Supply Voltage V
Video Inputs
ABL
= V
CC
, C
L
= 8 pF, Video Outputs = 2.0 V
CC
P-P
Min
3.9
3.8
(Note 2)
−12
4.75V
±
−5.2
−4.2
Typ
−60
−50
−20
190
100
110
1.2
4.3
3.7
3.5
4.2
0.5
60
5
2
2
0
<
<
−65˚C to +150˚C
V
0.0V
0˚C to +70˚C
V
in
Max
CC
245
82
P-P
≤ 1.0 V
PP
<
. Setting
5.25V
<
1.2V
mVDC
265˚C
Units
V
P-P
VDC
MHz
350V
mA
mA
V/V
dB
dB
dB
dB
dB
dB
dB
ns
ns
IN
%
%
%
V
PP
<