TDA3866

Features:

· Quasi-split sound processor for all standards e. g. B/G (FM sound) and L (AM sound)
· AF2 signal automatically muted (at B/G) by the input signal level
· AM signal processing for L standard and switching over the audio signal
· Stereo-matrix correction
· Layout-compatible with TDA3858 (32 pins) and TDA3857 (20 pins)
· AM output level typically 500 mV at m = 0.54 (+2.5 dB in comparison to TDA3856)


Pinout




Specifications

SYMBOL	PARAMETER	MIN.	MAX.	UNIT
VP	supply voltages (pin 21)	-	8.8	V
Vn	input and output voltage (pins 1, 2, 5, 8, 9, 15, 17, 19, 23 and 24)	0	VP	V
Ptot	total power dissipation	0	635	mW
Tstg	storage temperature range	-25	150
Tamb	operating ambient temperature range	0	70
VESD	electrostatic handling(1) all pins except 1, 2, 23 and 24	±500	-	V
	pins 1, 2, 23 and 24 pins 1, 2, 23 and 24	+400 -500	- -	V V

Description

Separate symmetrical IF inputs for FM or AM sound.

Gain controlled wideband IF amplifier TDA3866, 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 TDA3866 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.