LA7615 Ver la hoja de datos (PDF) - SANYO -> Panasonic
Número de pieza
componentes Descripción
Fabricante
LA7615 Datasheet PDF : 39 Pages
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LA7615
<Deflection Circuits>
Dedicated sync separator circuit input pin
The horizontal deflection circuit adopts a dual AFC circuit, and the horizontal oscillator uses the 32fH (503 kHz) pulse
signal as the horizontal decrement counter clock.
The following are the main settings for the horizontal output system that can be controlled over the serial bus interface.
These settings support even more efficient end product design.
• AFC gain (first loop gain control)
• APC gain (second loop gain control)
• Horizontal duty cycle
• Horizontal phase
*: The vertical deflection circuit adopts a decrement counter system, and provides constantly adjustment-free and stable
vertical synchronization for any type of signal, from TV on air, to weak reception conditions, to VCR signals.
Furthermore, this circuit uses an internal capacitor to implement a ramp generator, and allows the corrections
described later in this document to be applied to correct image distortion and other problems due to manufacturing
variations in the TV tube itself.
<Horizontal Circuit Functions>
• High-stability adjustment-free horizontal oscillator that uses a ceramic oscillator element
• Dual AFC circuit
• Multi-mode control of the AFC gain (first loop gain)
• Horizontal duty and phase controls
• Geometrical distortion correction: East-west DC (horizontal size)
East-west amplitude (horizontal pin-cushion distortion correction)
Corner pin
East-west corner 1
East-west corner 2
Tilt adjustment
• Sync killer
<Vertical Circuit Functions>
• Forcible non-standard mode support (standard mode: 262.5 H)
• Vertical size/linearity and vertical DC (vertical position) adjustments, vertical S-curve correction
• V-comp adjustment (Corrects for changes in the vertical size due to variations in the luminance.)
• Vertical killer
<Power System>
PWM circuits have come to be widely used in TV set power supplies in recent years. This IC integrates parts of the
power supply circuit (the pulse generator and its control system) and allows the supply voltage (high B) to be adjusted
over the serial bus.
No. 5841-4/39
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