资 源 简 介
The CS4954/5 provides full conversion from digital videoformats YCbCr or YUV into NTSC and PAL Composite,Y/C (S-video) and RGB, or YUV analog video. Input formatscan be 27 MHz 8-bit YUV, 8-bit YCbCr, or ITUR.BT656 with support for EAV/SAV codes. Video outputcan be formatted to be compaTIble with NTSC-M, NTSCJ,PAL-B,D,G,H,I,M,N, and CombinaTIon N systems.Closed CapTIon is supported in NTSC. Teletext is supportedfor NTSC and PAL.Six 10-bit DACs provide two channels for an S-Videooutput port, one or two composite video outputs, andthree RGB or YUV outputs. Two-TImes oversampling reducesthe output filter requirements and guarantees noDAC-related modulation components within the specifiedbandwidth of any of the supported video standards.Parallel or high-speed I2C compatible control interfaces areprovided for flexibility in system design. The parallel interfacedoubles as a general purpose I/O port when the CS4954/5 isin I2C mode to help conserve valuable board area.
