TDA9815

INTEGRATED CIRCUITS DATA SHEET TDA9815 Multistandard/MAC VIF-PLL with QSS-IF and dual FM-PLL/AM demodulator Product specification Supersedes data of 1995 Oct 03 File under Integrated Circuits, IC02 1998 Feb 11 Philips Semiconductors Product specification Multistandard/MAC VIF-PLL with QSS-IF and dual FM-PLL/AM demodulator FEATURES 5 V supply voltage Two switched VIF inputs, 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) Robustness for over-modulation better than 105% due to gated phase detector at L/L accent standard 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-AGC detector for gain control, operating as peak sync detector for B/G, peak white detector for L and peak level for MAC (optional external AGC); signal controlled reaction time for L and MAC Tuner AGC with adjustable takeover point (TOP) AFC detector without extra reference circuit AC-coupled limiter amplifier for sound intercarrier signal with input switch for additional FM 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 hig...