GENERAL DESCRIPTION
●The ADV7177/ADV7178 is an integrated digital video encoder that converts Digital CCIR-601 4:2:2 8- or 16-bit component video data into a standard analog baseband television signal compatible with worldwide standards. The 4:2:2 YUV video data is interpolated to two times the pixel rate. The color difference components (UV) are quadrature modulated using a subcarrier frequency generated by an on-chip 32-bit digital synthesizer (also running at two times the pixel rate).
●FEATURES
● ITU-R BT601/656 YCrCb to PAL/NTSC Video Encoder
● High Quality 9-Bit Video DACs
● Integral Nonlinearity <1 LSB at 9 Bits
● NTSC-M, PAL-M/N, PAL-B/D/G/H/I
● Single 27 MHz Crystal/Clock Required (32 Oversampling)
● 75 dB Video SNR
● 32-Bit Direct Digital Synthesizer for Color Subcarrier
● Multistandard Video Output Support:
● Composite (CVBS)
● Component S-Video (Y/C)
● Component YUV and RGB
● Video Input Data Port Supports:
● CCIR-656 4:2:2 8-Bit Parallel Input Format
● 4:2:2 16-Bit Parallel Input Format
● SMPTE 170M NTSC-Compatible Composite Video
● ITU-R BT.470 PAL-Compatible Composite Video
● Full Video Output Drive or Low Signal Drive Capability
● 34.7 mA max into 37.5 V (Doubly-Terminated 75R)
● 5 mA min with External Buffers
● Programmable Simultaneous Composite and S-VHS
● (VHS) Y/C or RGB (SCART)/YUV Video Outputs
● Programmable Luma Filters (Low-Pass/Notch/Extended)
● Programmable VBI (Vertical Blanking Interval)
● Programmable Subcarrier Frequency and Phase
● Programmable LUMA Delay
● Individual ON/OFF Control of Each DAC
● CCIR and Square Pixel Operation
● Color Signal Control/Burst Signal Control
● Interlaced/Noninterlaced Operation
● Complete On-Chip Video Timing Generator
● OSD Support (AD7177 Only)
● Programmable Multimode Master/Slave Operation
● Macrovision Antitaping Rev 7.01 (ADV7178 Only)
● Closed Captioning Support
● Onboard Voltage Reference
● 2-Wire Serial MPU Interface (I2C® Compatible)
● Single Supply +5 V or +3 V Operation
● Small 44-Lead PQFP Package
● Synchronous 27 MHz/13.5 MHz Clock O/P
●APPLICATIONS
● MPEG-1 and MPEG-2 Video, DVD, Digital Satellite/Cable Systems (Set Top Boxes/IRDs), Digital TVs, CD Video/Karaoke, Video Games, PC Video/Multimedia
