INTEGRATED CIRCUITS
DATA SHEET
TDA3858 Quasi-split sound processor for all standards
Product specification File under I...
INTEGRATED CIRCUITS
DATA SHEET
TDA3858 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) Reducing of spurious video signals by tracking function and AFC for the vision carrier reference circuit; (recommended for NICAM) 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 Stereo matrix correction Layout-compatible with TDA3856 (24 pins) and TDA3857 (20 pins). GENERAL DESCRIPTION
TDA3858
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 VP1 VP2 supply
voltage (pin 27) alternative supply
voltage (pin 28) PARAMETER MIN. 4.5 10.8 − − − − − − − − TYP. 5 12 MAX. 8.8 13.2 UNIT V V
Data at VP1 = 5 V IP Vi IF VO (RMS) VO (RMS) TH...