TDA9801

Single standard VIF-PLL demodulator and FM-PLL detector

GENERAL DESCRIPTION

The T is a monolithic integrated circuit for vision and sound IF signal processing in TV and VTR sets and multimedia front-ends.

FEATURES

• Suitable for negative vision modulation

• Applicable for IF frequencies of 38.9, 45.75 and 58.75 MHz

• Gain controlled wide-band Vision Intermediate Frequency VIF amplifier AC-coupled

• True synchronous demodulation with active carrier regeneration ultra-linear demodulation, good intermodulation figures, reduced harmonics and excellent pulse response

• Peak sync pulse AGC

• Video amplifier to match sound trap and sound filter

• AGC output voltage for tuner with fixed resistor for takeover point setting

• AFC detector without extra reference circuit

• Alignment-free FM-PLL detector with high linearity