Overview
The LA7775M is an FM receiver for CATV or FM communications equipment. In addition to functions for FM demodulation (oscillator, mixer, limiting IF amplifier, and quadrature detection circuits) it also includes on chip an FSK data shaper circuit, an RF amplifier, and a local oscillator frequency switching circuit.
FEATUREs
• Wideband RF input
• On-chip RF amplifier
• On-chip oscillator frequency switching circuit
Functions
• RF amplifier
• Mixer
• Oscillator
• Oscillator switching
• Limiting IF amplifier
• Quadrature detection
• Data shaper