TDA8349A Description
TDA8349A The TDA8349A is a multistandard IF amplifier and demodulator with AGC and AFC functions for television receivers. The device has a video recognition circuit and a video switch for internal or external video for full SCART applications.
TDA8349A Key Features
- Full-range gain-controlled wideband IF amplifier up to 60 MHz
- Wide-band video amplifier with good linearity and a class AB output stage to ensure a very low output impedance
- Supply independent video output level
- Small second harmonic IF output
- AGC circuit which operates on top sync level (negative modulation) or on white level (positive modulation) or on top lev
- AFC circuit with an internal 90° phase shift circuit, a sample-and-hold circuit for negatively modulated signals to redu
- Video recognition possibility based on horizontal pulse duty cycles
- Video switch for selection of internal or external video signals
- Wide supply voltage range and ripple rejection
- Requires few external ponents
TDA8349A Applications
- Full-range gain-controlled wideband IF amplifier up to 60 MHz
- Wide-band video amplifier with good linearity and a class AB output stage to ensure a very low output impedance