GENERAL DESCRIPTION：

The TDA9801(T) is a monolithic integrated circuit for visionand sound IF signal processing in TV and VTR sets andmultimedia front-ends.

FEATURES：

①Suitable for negative vision modulation

②Applicable for lF frequencies of 38.9, 45.75 and58.75 MHZ

③Gain controlled wide-band Vision Intermediate Frequency (VlF)amplifier (Ac-coupled)

④True synchronous demodulation with active carrierregeneration (ultra-linear demodulation, goodintermodulation figures, reduced harmonics andexcellent pulse response

⑤Peak sync pulse AGC

⑥Video amplifier to match sound trap and sound filter

⑦AGC output voltage for tuner with fixed resistor fortakeover point setting

⑧AFC detector without extra reference circuit

⑨Alignment-free FM-PLL detector with high linearity

⑩Stabilizer circuit for ripple rejection and to achieveconstant output signals

⑪5 to 9 V positive supply voltage range

⑫Low power consumption of300 mW at 5 V supplyvoltage.