GENERAL DESCRIPTION
The TDA9810 is an integrated circuit for multistandard vision IF signal processing and sound AM demodulation, with single reference QSS-IF in TV and VCR sets.

FEATURES
• 5 V supply voltage
• Gain controlled wide band Video Intermediate Frequency (VIF)-amplifier (AC-coupled)
• True synchronous demodulation with active carrier regeneration (very linear demodulation, good intermodulation figures, reduced harmonics, excellent pulse response)
• Gated phase detector for L/L accent standard; robustness for over-modulation until 105%
• Voltage Controlled Oscillator (VCO) frequency switchable between L and L accent (alignment external) picture carrier frequency
• Separate video amplifier for sound trap buffering with high video bandwidth
• VIF Automatic Gain Control (AGC) detector for gain control, operating as peak sync detector for B/G (optional external AGC) and peak white detector for L; signal controlled reaction time for L
• Tuner AGC with adjustable TakeOver Point (TOP)
• AFC detector without extra reference circuit
• SIF-input for single reference Quasi Split Sound (QSS) mode (Phase Locked Loop (PLL) controlled); Sound Intermediate Frequency (SIF) AGC detector for gain controlled SIF amplifier; single reference QSS mixer able to operate in high performance single reference QSS mode
• AM demodulator without extra reference circuit
• AM mute (especially for NICAM)
• Stabilizer circuit for ripple rejection and to achieve constant output signals.