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TDA8349

Multistandard IF amplifier and demodulator; ? Full-range gain-controlled wideband IF amplifier up to 60 MHz\n? Wide-band video amplifier with good linearity and a class AB output stage to ensure a very low output impedance\n? Supply independent video output level\n? Small second harmonic IF output\n? AGC circuit which operates on top sync level (negative modulation) or on white level (positive modulation) or on top\nlevel (MAC) with reduced sensitivity for high sound carriers\n? AFC circuit with an internal 90°phase shift circuit, a sample-and-hold circuit for negatively modulated signals to reduce\nvideo dependent AFC information and an analog or digital output\n? Video recognition possibility based on horizontal pulse duty cycles\n? Video switch for selection of internal or external video signals\n? Wide supply voltage range and ripple rejection\n? Requires few external components\n? Tuner AGC output for npn and pnp tuners;

GENERAL DESCRIPTION\nThe 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.\nFEATURES\n? Full-range gain-controlled wideband IF amplifier up to 60 MHz\n? Wide-band video amplifier with good linearity and a class AB output stage to ensure a very low output impedance\n? Supply independent video output level\n? Small second harmonic IF output\n? AGC circuit which operates on top sync level (negative modulation) or on white level (positive modulation) or on top\nlevel (MAC) with reduced sensitivity for high sound carriers\n? AFC circuit with an internal 90°phase shift circuit, a sample-and-hold circuit for negatively modulated signals to reduce\nvideo dependent AFC information and an analog or digital output\n? Video recognition possibility based on horizontal pulse duty cycles\n? Video switch for selection of internal or external video signals\n? Wide supply voltage range and ripple rejection\n? Requires few external components\n? Tuner AGC output for npn and pnp tuners

TDA8349

Multistandard IF amplifier and demodulator

TDA8349A

Multistandard IF amplifier and demodulator

TGA8349

GainBlockAmplifier

DESCRIPTION TheTriQuintTGA8349-SCCisaGaAsmonolithiclow-noisedistributedamplifierdesignedforuseasamulti-octavegeneral-purposegainblock.Nine122-μmgatewidthFETsprovide11-dBnominalgainand3.1-dBnoisefigurefromDCto14-GHz.Typicalpoweroutputis16-dBmat1-dB

TGA8349-SCC

DC-14GHzPowerAmplifier

TGA8349-SCC

GainBlockAmplifier

DESCRIPTION TheTriQuintTGA8349-SCCisaGaAsmonolithiclow-noisedistributedamplifierdesignedforuseasamulti-octavegeneral-purposegainblock.Nine122-μmgatewidthFETsprovide11-dBnominalgainand3.1-dBnoisefigurefromDCto14-GHz.Typicalpoweroutputis16-dBmat1-dB