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MFG:NS D/C:07+
Part Number: LM1296
MFG: NS
D/C: 07+
Description: The LM1296 is a monolithic IC for use in the raster scanning circuitry of a multi-frequency CRT monito...
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LM1296
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DataSheet
General Description
LM1296 General Description
The LM1296 is a monolithic IC for use in the raster scanning circuitry of a multi-frequency CRT monitor. The IC provides an S-corrected sawtooth waveform and a variable DC output voltage. These two outputs drive the vertical deflection amplifier. It also provides another waveform for East-West geometry correction which includes pincushion, corner, and trapezoid controls. The geometry correction is controlled by DC input voltages from 0V to 4V.
The raster height and the raster vertical position can be controlled by two DC voltage input pins that adjust the sawtooth waveform amplitude and the variable DC output voltage. The East-West correction of the LM1296 has height tracking and vertical position tracking capabilities. As the height or position of the raster is adjusted the geometry correction is maintained by the chip automatically.
The LM1296 is packaged in a 16-pin plastic DIP package.
LM1296 Maximum Ratings
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.
Supply Voltage (VCC)........................................... 15V
Input Voltage (VIN)
Pins 1, 2, 8, 9, 10, 16 ...........................0V VIN 5V
Power Dissipation (PD)
Above 25°C, Derate
Based on qJA and TJ (Note 4) ............................1.5W
Thermal Resistance (JA)............................. 81°C/W
Junction Temperature (TJMAX)....................... 150°C
ESD Susceptibility (Note 5)................................. 2 kV
Storage Temperature.................. −65°C to +150°C
Lead Temperature (Soldering 10 sec.) ...........265°C
LM1296 Features
` Vertical scanning frequency 50 Hz165 Hz
` Accepts either polarity of V sync
` DC-controlled correction terms
` Raster vertical position control
` Vertical S-correction (linearity) control
` East-West pincushion control
` East-West trapezoid control
` East-West corner control
` Provides both polarities of correction output
` East-West correction tracks raster vertical position and height
` Compatible with LM1290 and LM1292 horizontal PLL
` Accepts either polarity of V sync
` DC-controlled correction terms
` Raster vertical position control
` Vertical S-correction (linearity) control
` East-West pincushion control
` East-West trapezoid control
` East-West corner control
` Provides both polarities of correction output
` East-West correction tracks raster vertical position and height
` Compatible with LM1290 and LM1292 horizontal PLL
LM1296 Typical Application
· Vertical deflection of monitors
LM1296 Connection Diagram
LM1296
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- Datasheet: LM1296
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