TDA9818

INTEGRATED CIRCUITS DATA SHEET TDA9817; TDA9818 Single/multistandard VIF/SIF-PLL and FM-PLL/AM demodulators Preliminary specification File under Integrated Circuits, IC02 1997 May 12 Philips Semiconductors Preliminary specification Single/multistandard VIF/SIF-PLL and FM-PLL/AM demodulators FEATURES 5 V supply voltage 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 gated phase detector at L/L accent standard and PLL-bandwidth control at negative modulated standards VCO (Voltage Controlled Oscillator) frequency switchable between L and L accent (alignment external) picture carrier frequency VIF AGC (Automatic Gain Control) detector for gain control, operating as peak sync detector for B/G, peak white detector for L; signal controlled reaction time for L Tuner AGC with adjustable TakeOver Point (TOP) AFC (Automatic Frequency Control) detector without extra reference circuit ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TDA9817 TDA9818 SDIP24 SDIP24 DESCRIPTION TDA9817; TDA9818 AC-coupled limiter amplifier for sound intercarrier signal Alignment-free FM PLL (Phase Locked Loop) demodulator with high linearity SIF (Sound IF) input for sing...