TDA5950X

Video and Sound IF with FM-PLL Demodulator, AFC and V & S SCART TDA 5950X Bipolar IC Features q q q q Features video and sound IF Video and sound SCART AFC NTSC option P-DSO-24-1 Type TDA 5950X TDA 5950X Functional Description Video IF Section Ordering Code Q67000-A5112 Q67007-A5112 Package P-DSO-24-1 (SMD) P-DSO-24-1 Tape and Reel dry Video IF-broadband amplifier followed by a quasi-synchronous demodulator for negative modulated IF signals. A video switch interface is included in the video section. A separate video output after the demodulator permits the installation of one or more sound traps at the input of the video switch. The tuner AGC threshold is set by means of a potentiometer, all other functions can switched with open collector transistors. Sound IF Section FM-IF limiter with FM-PLL demodulator for the frequency range of 5.5 MHz to 6.5 MHz. The AF section includes an audio switch followed by an audio buffer output. Application The TDA 5950X is suitable for application in television receivers or video tape recorders with A/V switches. Semiconductor Group 1 12.94 TDA 5950X Circuit Description Video IF Section The video IF section incorporates a four-stage, capacitively coupled, symmetrical and controlled amplifier, a limiter with selection and a mixer for quasi-synchronous demodulation of negative modulated IF signals followed by a video output amplifier. The video demodulator output and the video switch input are connected by means of a sound trap. Th...