TDA4439中文资料TEMIC数据手册PDF规格书

特性 Features

• Standard B/G-L suitable, processes negatively and positively modulated IF-signals with equal polarity of the output signal

• Ultra white inverter and ultra black limiter for reducing transmission interference

• Internally noise protected gain control, no flyback pulses required

• Expanded video frequency response allows the demodulation of amplitude modulated MAC signals

• High input sensitivity

• Fast AGC by controlled discharge of the AGC capacitor

Standard L mode: AGC acting on peak white level, capacitor discharge control by averaged video signal

Standard B/G: AGC acting on the sync. pulse peak

• The direction of the AFC curve is selectable independently from the standard switch