NXP Semiconductors TDA9803
The TDA9803 is a monolithic integrated circuit for vision IF signal processing in multistandard TV and VTR sets.FEATURES
● Suitable for negative and positive vision modulation● Gain controlled 3-stage IF amplifier; suitable for VIF frequencies up to 60 MHz
● True synchronous demodulation with active carrier regeneration (ultra-linear demodulation, good intermodulation figures reduced harmonics and excellent pulse response)
● Peak sync AGC for negative modulation, e.g. B/G standard
● Peak white AGC for positive modulation, e.g. L standard
● Video amplifier to match sound trap and sound filter QUICK REFERENCE DATA SYMBOL VP IP Vi IF supply current vision IF input signal sensitivity (RMS value, pins 1 and 2) maximum vision IF input signal (RMS value, pins 1 and 2) Gv Vo CVBS B S/N (W) α1.1 α3.3 αH Tamb suppression of harmonics in video signal operating ambient temperature range IF gain control range CVBS output signal on pin 7 (peak-to-peak value) −3 dB video bandwidth on pin 7 signal-to-noise ratio weighted; for video intermodulation attenuation PARAMETER positive supply voltage (pin 20) MIN. 4.5 39 − 70 64 1.7 6 56 56 56 35 0 5 46 50 150 70 2.0 8 59 62 62 40 − TYP.