SAA7129H/V1,518

Encoders, Decoders, Converters Overview

The SAA7129H is a monolithic CMOS digital video encoder designed to convert digital CR-Y-CB video data into NTSC, PAL, or SECAM CVBS and S-video signals. It features a 54 MHz double-speed multiplexed D1 interface capable of processing two ITU-R BT.656 compatible data streams simultaneously. The device includes three DACs for CVBS outputs with 10-bit resolution and three DACs for RGB outputs with 9-bit resolution. Operating at a system pixel frequency of 13.5 MHz, it supports real-time subcarrier control, cross-color reduction, and teletext encoding within a QFP44 package.

Encoders, Decoders, Converters Feature Summary

• Encodes digital CR-Y-CB data to NTSC, PAL, or SECAM CVBS and S-video signals
• Processes dual ITU-R BT.656 data streams via a 54 MHz double-speed multiplexed D1 interface
• Provides simultaneous analog RGB output alongside encoded composite video
• Integrates closed captioning, teletext (WST/NABTS), and copy protection encoding

Encoders, Decoders, Converters Applications

• Digital video recorders requiring composite and RGB output
• Video graphics processors needing on-screen display overlay capabilities
• Broadcast equipment supporting teletext and closed caption insertion
• Multimedia systems utilizing MPEG decoded data streams

Encoders, Decoders, Converters Procurement Notes

Verify the specific suffix 'V1,518' against the manufacturer's current ordering information to confirm packaging and tape-and-reel specifications. Ensure compatibility with the required I2C bus voltage levels and crystal oscillator configurations before integration. Cross-reference the pinout with the official datasheet to validate connections for the 54 MHz input and analog supply rails.

Encoders, Decoders, Converters Selection Notes

Select this component when simultaneous encoding and baseband RGB output are required from a single IC. It is suitable for applications needing flexible synchronization in master or slave modes. Consider the 10-bit DAC resolution for high-quality composite video and the integrated teletext engine for broadcast compliance. Verify that the 3.3 V supply voltage aligns with the system design constraints.

Encoders, Decoders, Converters Part Context

The SAA7129H belongs to the Philips Semiconductors (now NXP) SAA712x series of digital video encoders. It shares architectural similarities with the SAA7128H but lacks the Macrovision anti-taping feature found in the SAA7128H variant. Both devices utilize the same QFP44 package and support standard video formats including NTSC, PAL, and SECAM.

Encoders, Decoders, Converters Replacement Considerations

The SAA7128H is a direct functional substitute, offering identical encoding capabilities with the addition of Macrovision copy protection. No other direct replacements are documented in the provided source material.