ADV7344BSTZ

Overview

The ADV7344 is a high-speed digital-to-analog video encoder in a 64-pin LQFP package. It features six Noise Shaped Video (NSV) 14-bit DACs supporting composite, S-Video, and component outputs for SD, ED, and HD formats. The device accepts 20/30-bit pixel inputs via SDR or DDR interfaces. Key specifications include 16× oversampling at 216 MHz for SD, 8× for ED, and 4× at 297 MHz for HD. Supply voltages are VDD/PVDD at 1.8 V, VAA at 3.3 V, and VDD_IO at 1.8 V or 3.3 V. Operating temperature ranges from −40°C to +85°C.

Feature Summary

• Supports simultaneous standard definition and enhanced/high definition input/output with multiformat compatibility.
• Integrates programmable filters, gamma correction, and color space conversion matrices for signal optimization.
• Includes embedded timing generators, test pattern generation, and copy protection compliance features.

Applications

• DVD recorders and players
• High definition Blu-ray DVD players

Procurement Notes

Verify the specific revision suffix against the manufacturer's current ordering guide to ensure compatibility with required packaging and environmental standards. Confirm that the voltage levels on the host system align with the specified 1.8 V and 3.3 V I/O requirements before integration.

Selection Notes

Select this component when multiformat video encoding from SD to HD is required within a single integrated circuit. Consider the 14-bit DAC resolution and internal oversampling capabilities if external filtering is to be minimized. Ensure the design accommodates the necessary clock frequencies for the target video standard.

Part Context

This device belongs to Analog Devices' ADV73xx series of multiformat video encoders. It shares functional similarities with the ADV7340 and ADV7343 but offers higher resolution DACs and advanced programmability for high-definition applications. It serves as a bridge between digital video sources and analog display systems.

Replacement Considerations

Publicly confirmed substitutes include the ADV7340 and ADV7343. Verify pinout compatibility and feature parity, particularly regarding DAC resolution and supported video standards, before substitution.

FAQ

What is the maximum DAC output current?

The maximum full-drive DAC output current is 37 mA when RSET is 510 Ω and RL is 37.5 Ω.

Does the ADV7344 support dual data rate input?

Yes, the device supports dual data rate (DDR) input for enhanced definition and high definition video formats.

What video standards are directly supported?

It supports SMPTE 274M (1080i), 296M (720p), 240M (1035i), NTSC M, PAL B/D/G/H/I/M/N, and PAL 60.