Integrated Digital Ccir-601 To Pal/ntsc Video Encoder - Analog Devices

The ADV7177 ADV7178 is an integrated digital Video Encoder that converts Digital CCIR- 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). The two times pixel rate sampling allows for better signal-to-noise ratio. A 32-bit DDs with a 9-bit look-up table produces a superior subcarrier in terms of both frequency and phase. In addition to the composite output signal, there is the facility to output S-Video (Y/C) Video YUV or RGB Video Each Analog output is capable of driving the full video-level (34.7 mA) signal into an unbuffered, doubly terminated 75 load. With external buffering, the user has the additional option to scale back the DAC output current to 5 mA min, thereby signifi- cantly reducing the power dissipation of the device. The ADV7177 ADV7178 also supports both PAL and NTSC square pixel operation. The output Video frames are synchronized with the incoming data Timing reference codes. Optionally, the encoder accepts (and CAN generate) HSYNC, VSYNC and FIELD Timing signals. These Timing signals CAN be adjusted to change pulsewidth and position while the part is in the master mode. The encoder requires a single two times pixel rate (27 MHz) Clock for standard operation. Alternatively, the encoder requires a 24.54 MHz Clock for NTSC or 29.5 MHz Clock for PAL square pixel mode operation. All internal Timing is generated on-chip. The ADV7177 ADV7178 modes are set up over a two-wire serial bidirectional port (I 2 C-Compatible) with two slave addresses. Functionally the ADV7178 and ADV7177 are the same with the exception that the ADV7178 CAN output the Macrovision anticopy algorithm, and OSD is only supported on the ADV7177. The ADV7177 ADV7178 is packaged in a 44-lead thermally enhanced PQFP package. 601 4:2:2 8- or 16-bit component Video data into a standard Analog baseband Television signal By Analog Devices, Inc.
ADV7177 's PackagesADV7177 's pdf datasheet
ADV7178KS PQFP
ADV7177KS PQFP
ADV7178 PQFP




ADV7177 Pinout, Pinouts
ADV7177 pinout,Pin out
This is one package pinout of ADV7177,If you need more pinouts please download ADV7177's pdf datasheet.

ADV7177 Application circuits
ADV7177 circuits
This is one application circuit of ADV7177,If you need more circuits,please download ADV7177's pdf datasheet.


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