TDA3856

INTEGRATED CIRCUITS DATA SHEET TDA3856 Quasi-split sound processor for all standards Product specification File under Integrated Circuits, IC02 June 1994 Philips Semiconductors Product specification Quasi-split sound processor for all standards FEATURES Quasi-split sound processor for all standards e. g. B/G (FM sound) and L (AM sound) Automatic muting of the AF2 signal (at B/G) by the input level AM signal processing for L standard and switching over the audio signal Layout-compatible with TDA3858 (32 pins) and TDA3857 (20 pins). GENERAL DESCRIPTION TDA3856 Separate symmetrical IF inputs for FM or AM sound. Gain controlled wideband IF amplifier, input select switch. AGC generation due to peak sync for FM or mean signal level for AM. Reference amplifier for the regeneration of the vision carrier. Optimized limiting amplifier for AM suppression in the regenerated vision carrier signal and 90° phase shifter. Intercarrier mixer for FM sound, output with low-pass filter. Separate signal processing for 5.5 and 5.74 MHz intercarriers. Wide supply voltage range, only 300 mW power dissipation at 5 V. QUICK REFERENCE DATA SYMBOL VP IP Vi IF Vo(RMS) Vo(RMS) THD supply current IF input sensitivity (−3 dB) audio output signal for FM (B/G) audio output signal for AM (L) total harmonic distortion for FM for AM S/N (W) weighted signal-to-noise ratio for FM for AM ORDERING INFORMATION PACKAGE EXTENDED TYPE NUMBER TDA3856 TDA3856T Note 1. 2. SOT234-1; 1996 November 28. SOT137-1; ...