LM1279 datasheet(2/14 Pages) NSC

2 / 14 page

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

(Above 25˚C Derate Based on

and T

2.1W

Thermal Resistance to Ambient (

JA)

60˚C/W

Thermal Resistance to Case (

JA)

37˚C/W

Junction Temperature (T

150˚C

ESD Susceptibility (Note 4)

3.5 kV

ESD Machine Model (Note 16)

300V

Storage Temperature

−65˚C to 150˚C

Lead Temperature

(Soldering, 10 sec.)

265˚C

Operating Ratings (Note 2)

Temperature Range

0˚C to 70˚C

Supply Voltage (V

CC)

7.5V

≤ V

CC ≤

8.5V

DC Electrical Characteristics

A = 25˚C; VCC1 =VCC2 = 8V; V10 = 4V; VDrive = 4V; V11 = 7V; VOSD = 0V; RL = 390Ω unless otherwise stated.

Symbol

Parameter

Condition

Typical

(Note 5)

Limit

(Note 6)

Units

Supply Current

CC1 +ICC2 −ILoad (Note 7)

mA(max)

3, 5, 8

Video Amplifier Input Bias Voltage

2.5

Video Input Resistance

Any One Amplifier

Ω

11off

Sandcastle Off Voltage

1.4

1.2

V (max)

11blank

Sandcastle Blank Voltage

Start of Blank Region

1.4

1.7

V (min)

11blank

Sandcastle Blank Voltage

End of Blank Region

2.8

3.2

V (max)

11clamp &

Blank

Sandcastle Clamp and Blank On

Voltage

Start of Clamp and Blank

Region

3.2

3.6

V (min)

11clamp &

Blank

Sandcastle Clamp and Blank On

Voltage

End of Clamp and Blank

Region

6.2

5.8

V (max)

11clamp

Sandcastle Clamp On/Blank Off

Voltage

Clamp Only Region, Max =

6.2

6.5

V (min)

11off

Sandcastle Off Current

11 = 0V

−5.0

−8.0

µA(max)

11test

Sandcastle Clamp On/Blank Off

Curr

11 = 6.5V

−100

−500

nA(max)

clamp

Clamp Cap Charge Current

Clamp Comparators On

±750

±500

µA(min)

bias

Clamp Cap Bias Discharge

Current

Clamp Comparators Off

200

nA (max)

Video Black Level

Video in = 0V, V11 = 6.5V

1.35

1.55

V (max)

∆V

Video

∆Black Level Output

Voltage

Between Any Two Amplifiers

±50

±200

mV (max)

Video Output High Voltage

11 < 1.2V

5.0

4.6

V (min)

10, 12, 14, 17

Contrast/Drive Control Input

Current

Contrast =VDrive =0Vto4V

−0.25

−1.5

µA (max)

1l, 19l, 20l

OSD Low Input Current (each)

OSD in = 0V

−2.5

−10.0

µA(max)

1h, 19h, 20h

OSD High Input Current (each)

OSD in = 5V

100

130

µA(max)

OL(Blank)

Video Output during Blanking

11 = 1.7V

0.1

0.5

V (max)

AC Electical Characteristics

A = 25˚C; 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

Vmax

Video Amplifier Gain

10 = 4V, VIN = 635 mVPP

6.8

5.9

V/V (min)

drive = 4V

16.7

15.4

dB (min)

∆A

V2V

Contrast Attenuation @ 2V

Ref: A

V max, V10 =2V

−6

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