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MFG:NSC Package Cooled:DIP
Part Number: LM1279
MFG: NSC
Package Cooled: DIP
Description: The LM1279 is a full featured and low cost video amplifier with OSD (On Screen Display). 8V operation ...
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LM1279
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DataSheet
General Description
LM1279 General Description
The LM1279 is a full featured and low cost video amplifier with OSD (On Screen Display). 8V operation for low power and increased reliability. Supplied in a 20-pin DIP package, accommodating very compact designs of the video channel requiring OSD. All video functions controlled by 0V to 4V high impedance DC inputs. This provides easy interfacing to 5V DACs used in computer controlled systems and digital alignment systems. Unique OSD switching, no OSD switching signal required. An OSD signal at any OSD input typically switches the LM1279 to the OSD mode within 5 ns. Ideal video amplifier for the low cost OSD monitor with resolutions up to 1280 x 1024. The LM1279 provides superior protection against ESD. Excellent alternative for the MC13282 in new designs.
LM1279 Maximum Ratings
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 (VIN) VCC VIN GND
Power Dissipation (PD) (Above 25°C Derate Based on JA and TJ) 2.1W
Thermal Resistance to Ambient (JA) 60°C/W
Thermal Resistance to Case (JA) 37°C/W
Junction Temperature (TJ) 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
Peak Video Output Source Current (Any One Amp) Pins 13, 15, or 18 28 mA
Voltage at Any Input Pin (VIN) VCC VIN GND
Power Dissipation (PD) (Above 25°C Derate Based on JA and TJ) 2.1W
Thermal Resistance to Ambient (JA) 60°C/W
Thermal Resistance to Case (JA) 37°C/W
Junction Temperature (TJ) 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
LM1279 Features
Three wideband video amplifiers 110 MHz @ −3dB (4 VPP output)
OSD signal to any OSD input pin automatically switches all 3 outputs to the OSD mode
Fast OSD switching time, typically 5 ns
3.5 kV ESD protection
Fixed cutoff level typically set to 1.35V
0V to 4V, high impedance DC contrast control with over 40 dB range
0V to 4V, high impedance DC drive control (0 dB to −12 dB range)
Matched (±0.3 dB or 3.5%) attenuators for contrast control
Output stage directly drives CRT drivers
Ideal combination with LM2407 CRT driver
OSD signal to any OSD input pin automatically switches all 3 outputs to the OSD mode
Fast OSD switching time, typically 5 ns
3.5 kV ESD protection
Fixed cutoff level typically set to 1.35V
0V to 4V, high impedance DC contrast control with over 40 dB range
0V to 4V, high impedance DC drive control (0 dB to −12 dB range)
Matched (±0.3 dB or 3.5%) attenuators for contrast control
Output stage directly drives CRT drivers
Ideal combination with LM2407 CRT driver
LM1279 Typical Application
High resolution RGB CRT monitors
Video AGC amplifiers
Wideband amplifiers with contrast and drive controls
Interface amplifiers for LCD or CCD systems
Video AGC amplifiers
Wideband amplifiers with contrast and drive controls
Interface amplifiers for LCD or CCD systems
LM1279
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- Datasheet: LM1279
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