TDA8349A

· 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 level (MAC) with reduced sensitivity for high sound carriers
· AFC circuit with an internal 90° phase shift circuit, a sample-and-hold circuit for negatively modulated signals to reduce video dependent AFC information and an analog or digital output
· 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 components
· Tuner AGC output for npn and pnp tuners

These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.

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.