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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 modeFast OSD switching time, typically 5 ns3.5 kV ESD protectionFixed cutoff level typically set to 1.35V0V to 4V, high impedance DC contrast...

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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 modeFast OSD switching time, typically 5 ...

LM1279 Data Sheet

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Part Number:
LM1279
Supply Ability:
5000

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  • 1~5000
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  • Processing time
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Total Cost: $ 0.00

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Product Details

Description



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




Application

High resolution RGB CRT monitors
Video AGC amplifiers
Wideband amplifiers with contrast and drive controls
Interface amplifiers for LCD or CCD systems




Specifications

Temperature Min 0 deg C
Temperature Max 70 deg C
Gain Bandwidth 110 MHz
DC Control Voltage Range 0 V - 4 VDC
Gain 7 V/V
Channels 3 Channels
Output Rise Time (tr) 3.6 ns
Output Fall Time (tf) 3.2 ns
Pixel Clock Max 220 MHz
Supply Voltage 8 Volt
With OSD-Mixer Yes
DisplayType CRT
View Using Catalog


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




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.

More Application Notes

Title Size in Kbytes Date
AN-178: Application Note 178 Applications for an Adjustable IC Power Regulator 40 Kbytes 3-Oct-02 Download

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