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Part Number: LM1279A
Description: The LM1279A is a full featured and low cost video amplifier with OSD (On Screen Display). 8V operation...
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LM1279A
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General Description
LM1279A General Description
The LM1279A 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 LM1279A to the OSD mode within 5 ns. Ideal video amplifier for the low cost OSD monitor with resolutions up to 1024 x 768. The LM1279A provides superior protection against ESD. Excellent alternative for the MC13282 in new designs.
LM1279A 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 V IN 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 V IN 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
LM1279A 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 1.2V
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 (±0.1 dB or 1.2%) attenuators for contrast control
Output stage directly drives most hybrid or discrete CRT drivers
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 1.2V
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 (±0.1 dB or 1.2%) attenuators for contrast control
Output stage directly drives most hybrid or discrete CRT drivers
LM1279A 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
LM1279AN
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- Datasheet: LM1279AN
- File Size: 576671 KB
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