Philips TDA3867t free download

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INTEGRATED CIRCUITS DATA SHEET TDA3867T Quasi-split sound processor with two FM demodulators Preliminary specification File under Integrated Circuits, IC02 January 1992 Philips Semiconductors Preliminary specification Quasi-split sound processor with two FM demodulators FEATURES · Quasi-split sound processor for all FM standards e.g. B/G TDA3867T · Reduction of spurious video signals by tracking function and AFC for the vision carrier reference circuit; (indispensable for NICAM) · AF2 signal automatically muted (at B/G) by the input signal level GENERAL DESCRIPTION Symmetrical IF input and gain controlled wideband IF amplifier. AGC generation due to peak sync 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 THD S/N (W) PARAMETER supply voltage (pin 24) supply current (pin 24) IF input sensitivity (-3 dB) audio output signal (RMS value) total harmonic distortion weighted signal-to-noise ratio for FM for FM with 6 kHz sinus vision modulation ORDERING AND PACKAGE INFORMATION EXTENDED TYPE NUMBER TDA3867T Note 1. SOT136-1; 1997 January 8. 28 PACKAGE PINS PIN POSITION mini-pack MATERIAL plastic CODE SOT136A (1) - - 68 56 - - dB dB - - - - MIN. 4.5 5 60 70 1 0.5 TYP. MAX. 8.8 72 100 - - V mA µV V % UNIT January 1992 2 Philips Semiconductors Preliminary specification Quasi-split sound processor with two FM demodulators TDA3867T Fig.1 Block diagram. January 1992 3 Philips Semiconductors Preliminary specification Quasi-split sound processor with two FM demodulators PINNING SYMBOL PIN n.c. n.c. CAGC n.c. n.c. MATR FM2R1 FM2R2 AF2 AF1 FM1R1 FM1R2 n.c. VC-R1 VC-R2 TRACK n.c. FM1I CAF1 ICO CAF2 FM2I GND VP n.c. n.c. FMIF1 FMIF2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 not connected not connected charge capacitor for AGC not connected not connected input for stereo matrix correction reference circuit for FM2 (5.74 MHz) reference circuit for FM2 (5,74 MHz) AF2 output (AF out of 5.74 MHz) AF1 output (AF out of 5.5 MHz) reference circuit for FM1 (5.5 MHz) reference circuit for FM1 (5.5 MHz) not connected reference circuit for the vision carrier (38.9 MHz) reference circuit for the vision carrier (38.9 MHz) DC output level for tracking not connected intercarrier input for FM1 (5.5 MHz) DC-decoupling capacitor for FM1 demodulator (AF1) intercarrier output signal (5.5/5.74 MHz) DC-decoupling capacitor for FM2 demodulator (AF2) intercarrier input for FM2 (5.74 MHz) ground (0 V) +5 to +8 V supply voltage not connected not connected IF difference input 1 (B/G standard, 38.9 MHz) IF difference input 2 (B/G standard, 38.9 MHz) DESCRIPTION PIN CONFIGURATION TDA3867T