TDA8501

· Two input stages: R, G, B and -(R-Y), -(B-Y), Y with multiplexing
· Chrominance processing, highly integrated, includes low frequency filters for the colour difference signals, and after the modulator a bandpass filter
· Fully controlled modulator produces a signal according to the PAL or NTSC standard without adjustments
· A free running oscillator. Can be tuned by crystal or by an external frequency source
· Output stages with separated Y + SYNC and chrominance (Y + C, SVHS), and a CVBS output. Signal amplitudes are correct for 75 W driving via an external emitter follower. Internal generation of NTSC setup
· Sync separator circuit and pulse shaper, to generate the required pulses for the processing, clamping, blanking,
FH/2, and burst pulse
· H/2 control pin. In PAL mode the internally generated H/2 is connected to this pin and the phase of this signal
can be reset
· Internal bandgap reference.

The TDA8501 is a highly integrated PAL/NTSC encoder IC which is designed for use in all applications where R, G
and B or Y, U and V signals require transformation to PAL or NTSC values.The specification of the input signals are
fully compatible with the specification of those of the TDA8505 SECAM-encoder.