TDA9808T

Single standard VIF-PLL with QSS-IF and FM-PLL demodulator

GENERAL DESCRIPTION

The TDA9808 is an integrated circuit for single standard negative modulated vision IF signal processing and FM demodulation, with single reference QSS-IF in TV and VTR sets.

FEATURES

• 5 V supply voltage 9 V supply voltage for TDA9808DIP20 only

• Applicable for IFs Intermediate Frequencies of 38.9 MHz, 45.75 MHz and 58.75 MHz

• Gain controlled wide band Video IF VIF-amplifier AC-coupled

• True synchronous demodulation with active carrier regeneration very linear demodulation, good

intermodulation figures, reduced harmonics, excellent pulse response

• Robustness for over-modulation better than 105% due to Phase Locked Loop PLL-bandwidth control at negative modulated standards

• VIF Automatic Gain Control AGC detector for gain control, operating as peak sync detector

• Tuner AGC with adjustable TakeOver Point TOP

• Automatic Frequency Control AFC detector without extra reference circuit

• AC-coupled limiter amplifier for sound intercarrier signal

• Alignment-free FM-PLL demodulator with high linearity

• Sound IF SIF input for single reference Quasi Split Sound QSS mode PLL controlled; SIF AGC detector for gain controlled SIF amplifier; single reference QSS mixer for high performance

• Electrostatic Discharge ESD protection for all pins.