Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
Pins 2 and 16 (Note 3)
10V
Peak Video Output Source Current
(Any One Amp) Pins 13, 15, or 18
28 mA
Voltage at Any Input Pin (V
IN)VCC ≥ VIN ≥ GND
Power Dissipation (P
D)
(Above 25C Derate Based on
θ
JA
and T
J)
2.1W
Thermal Resistance to Ambient (
θ
JA)
60C/W
Thermal Resistance to Case (
θ
JA)
37C/W
Junction Temperature (T
J)
150C
ESD Susceptibility (Note 4)
3.5 kV
ESD Machine Model (Note 16)
300V
Storage Temperature
65C to 150C
Lead Temperature
(Soldering, 10 sec.)
265C
Operating Ratings (Note 2)
Temperature Range
0C to 70C
Supply Voltage (V
CC)
7.5V
≤ V
CC ≤ 8.5V
DC Electrical Characteristics
T
A = 25C; VCC1 =VCC2 = 8V; V10 = 4V; VDrive = 4V; V11 = 7V; VOSD = 0V unless otherwise stated.
Symbol
Parameter
Condition
Typical
(Note 5)
Limit
(Note 6)
Units
I
S
Supply Current
I
CC1 +ICC2 ILoad (Note 7)
80
90
mA(max)
V
3, 5, 8
Video Amplifier Input Bias Voltage
2.5
V
R
IN
Video Input Resistance
Any One Amplifier
20
k
V
11clamp
Clamp Voltage
3.2
3.6
V (min)
I
11 clamp off
Clamp Off Current
V
11 = 0V
5.0
8.0
A(max)
I
11 clamp on
Clamp On Current
V
11 = 6.5V
100
500
nA (max)
I
clamp
Clamp Cap Charge Current
Clamp Comparators On
±750
±500
A(min)
I
bias
Clamp Cap Bias Discharge
Current
Clamp Comparators Off
50
200
nA (max)
V
OL
Video Black Level
V
Video in = 0V, V11 = 6.5V
1.35
1.55
V (max)
V
OL
Video
Black Level Output
Voltage
Between Any Two Amplifiers
±50
±200
mV (max)
V
OH
Video Output High Voltage
V
11 < 1.2V
5.0
4.6
V (min)
I
10, 12, 14, 17
Contrast/Drive Control Input
Current
V
Contrast =VDrive =0Vto4V
0.25
1.5
A (max)
I
1I, 19I, 20I
OSD Low Input Current (each)
V
OSD in = 0V
2.5
10
A(max)
I
1h, 19h, 20h
OSD High Input Current (each)
V
OSD in = 5V
100
130
A (max)
AC Electical Characteristics
T
A = 25C; VCC1 =VCC2 = 8V. Manually adjust Video Output pins 13, 15, and 18 to 4V DC for the AC test unless otherwise
stated. (Note 15)
Symbol
Parameter
Conditions
Typical
(Note 5)
Limit
(Note 6)
Units
A
Vmax
Video Amplifier Gain
V
10 = 4V, VIN = 635 mVPP
6.8
5.9
V/V (min)
V
drive = 4V
16.7
15.4
dB (min)
A
V2V
Contrast Attenuation @ 2V
Ref: A
V max, V10 =2V
6
dB
A
V 0.25V
Contrast Attenuation @ 0V
Ref: A
V max, V10 = 0V
35
dB
Drive
Drive Control Range
V
drive =0Vto4V, V10 =4V
12
dB
A
V match
Absolute Gain Match @ A
V max
V
10 = 4V, Vdrive = 4V (Note 9)
±0.3
dB
A
V track
Gain Change Between Amplifiers
V
10 = 4V to 2V (Notes 9, 10)
±0.3
dB
f(3 dB)
Video Amplifier Bandwidth
V
10 = 4V, Vdrive = 4V,
110
MHz
(Notes 11, 12))
V
O = 3.5 VP-P
t
r(Video)
Video Output Rise Time
V
O = 3.5 VP-P (Note 11)
3.6
ns
t
f(Video)
Video Output Fall Time
V
O = 3.5 VP-P (Note 11)
3.2
ns
V
sep 10 kHz
Video Amplifier 10 kHz Isolation
V
10 = 4V (Note 13)
70
dB
LM1279A
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