GENERAL DESCRIPTION
The TDA9813T is an integrated circuit for vision IF signal processing and sound dual FM demodulation, with single reference QSS-IF in TV and VCR sets. For negative modulation standards only.

FEATURES
• 5 V supply voltage
• Gain controlled wide band VIF amplifier (AC-coupled)
• True synchronous demodulation with active carrier
   regeneration (very linear demodulation, good
   intermodulation figures, reduced harmonics,
   excellent pulse response)
• Separate video amplifier for sound trap buffering with high video bandwidth
• VIF-AGC detector for gain control, operating as peak sync detector
• Tuner AGC with adjustable takeover point (TOP)
• AFC detector without extra reference circuit
• AC-coupled limiter amplifier for sound intercarrier signal
• Two alignment-free FM-PLL demodulators with high linearity
• SIF input for single reference QSS mode (PLL
   controlled); SIF-AGC detector for gain controlled SIF
   amplifier; single reference QSS mixer able to operate in
   high performance single reference QSS mode
• Stabilizer circuit for ripple rejection and to achieve
   constant output signals
• ESD protection for all pins.