TDA8505 Description
TDA8505 The TDA8505 is a highly integrated SECAM encoding IC that is designed for use in all applications that require transformation of R, G and B signals or Y, U and V signals to a standard SECAM signal. The specification of the input signals is fully patible with those of the TDA8501 PAL/NTSC encoder.
TDA8505 Key Features
- Two input stages, R, G, B and Y, -(R-Y), -(B-Y) with multiplexing
- Chrominance processing, highly integrated, includes vertical identification, low frequency pre-emphasis and high frequen
- Fully controlled FM modulator which produces a signal in accordance with the SECAM standard without adjustments
- Two reference oscillators, one for D'R f0 (4.40625 MHz) and one for D'B f0 (4.250 MHz). These oscillators are tuned by P
- Output stages, CVBS and separated Y + SYNC and CHROMA. For CVBS output, signal amplitude 2 V (p-p) nominal, thus only an
- Sync separator circuit and pulse shaper, to generate the required pulses for the processing, line, frame, FH/2 and chrom
- A 3-level sandcastle pulse is generated for PAL/NTSC to SECAM transcoding
- FH/2 input for locking with another decoder
- Colour killing on the internal colour difference signals
- Internal bandgap reference. ORDERING INFORMATION PACKAGE TYPE NUMBER PINS TDA8505 32 PIN POSITION SDIP32 MATERIAL plasti