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TDA9143
Information as of 2000-08-22
TDA9143; I2C-buscontrolled, alignment-free PAL/NTSC/SECAM decoder/sync processor
The TDA9143 is an I 2 C-bus controlled, alignment-free PAL/NTSC/SECAM decoder/sync processor with blanking facilities for PALplus
and EDTV-2 signals. The TDA9143 has been designed for use with baseband chrominance delay lines, and has a combined subcarrier
frequency/comb filter enable signal for communication with a PAL/NTSC comb filter.
The IC can process both CVBS input signals and Y/C input signals. The input signal is available on an output pin, in the event of a Y/C
signal, it is added into a CVBS signal.
The sync processor provides a two-level sandcastle, a horizontal pulse (CLP or HA pulse, bus selectable) and a vertical (VA) pulse. When
the HA pulse is selected, a line-locked clock (LLC) signal is available at the output port pin (6.75 MHz or 6.875 MHz).
A fast switch can select either the internal Y signal with the UV input signals, or YUV signals made of the RGB input signals. The RGB input
signals can be clamped with either the internal or an external clamping signal.
Two pins with an input/output port and an output port of the I2C-bus are available.
The I2C-bus address of the TDA9143 is hardware programmable.
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Multi-standard colour decoder and sync processor for PAL, NTSC and SECAM
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PALplus helper blanking and EDTV-2 blanking
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I2C-bus controlled
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I2C-bus addresses hardware selectable
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Pin compatible with TDA9141
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Alignment free
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