This is a digital NTSC/PAL encoder that outputs analog composite video signals and analog S video signals. The scanning system can be selected as interlaced or non-interlaced. Since the MSM7650 is provided with pins dedicated to overlay function, text and graphics can be superimposed on a video signal. In addition, this encoder has an internal 9-bit DAC. So, when compared with using a conventional analog encoder, the number of components, the board space, and points of adjustment can greatly be reduced, thereby realizing a low cost and high-accuracy system. The host interface provided conforms to Philips's I2C specifications, which reduces interconnections between this encoder and mounting components. The internal synchronization signal generator (SSG) allows the MSM7650 to operate in master or slave mode.
The MSM7650 is an integrated circuit designed to encode digital image data conforming to CCIR Rep 624-4 into analog composite video and five audio signals. It supports both NTSC and PAL scanning systems, with selectable interlaced or noninterlaced modes.
Key features include a dedicated overlay function for superimposing text and graphics, an internal 9-bit DAC to reduce component count, and a host interface compatible with Philips eC specifications. The device can operate in master or slave mode using its internal synchronization signal generator (SSG).
| Video signal system | NTSC/PAL |
|---|---|
| Input digital level | conforms to ITU-601 (CCIR601) |
| Supported sampling rates | NTSC 4Fsc, NTSC ITU-R601, NTSC Square Pixel, PAL ITU-R601, PAL Square Pixel |
| Internal DAC | 9-bit |
| Package type | 80-pin plastic QFP |
| Operating Temperature Range | -5 to +70 °C |
The MSM7650 supports both interlaced and noninterlaced modes.
Yes, it includes an internal 3-channel 9-bit DAC.
The recommended operating condition for Vops is 5.0V.