ADV7303AKST

Overview

The ADV7303AKST is a multiformat SD, progressive scan, and HDTV video encoder featuring six 11-bit digital-to-analog converters. It supports simultaneous standard definition and high definition inputs and outputs with oversampling capabilities of up to 8x for SD and 2x for HD. The device operates on dual I/O supplies of 2.5 V and 3.3 V, utilizing a 64-lead LQFP package. Static performance includes an integral nonlinearity of ±1.0 LSB and differential nonlinearity ranging from 0.125 to 1.0 LSB. Power consumption varies by mode, reaching up to 110 mA in normal operation.

Feature Summary

• Supports simultaneous standard definition and high definition video processing with programmable input formats including CCIR-656 and SMPTE standards.
• Integrates six precision 11-bit video DACs with internal test pattern generators and fully programmable YCrCb to RGB matrices.
• Features advanced signal processing including digital noise reduction, gamma correction, and adaptive filter control for both SD and HD modes.

Applications

• DVD Players
• SD/HD Display Devices
• SD/HD Set-Top Boxes

Procurement Notes

Verify the specific suffix AKST corresponds to the Plastic Quad Flatpack (ST-64B) package option when sourcing. Confirm that the component meets lead-free manufacturing requirements and withstands surface-mount soldering temperatures up to 255°C. Ensure ESD precautions are observed during handling due to sensitivity.

Selection Notes

Select this model for applications requiring simultaneous SD and HD video encoding within a single monolithic chip. Consider the 64-lead LQFP package constraints and the requirement for external loop filters for the internal PLL. Verify compatibility with 2-wire serial MPU interface protocols for system integration.

Part Context

The ADV7303AKST belongs to the ADV7302A/ADV7303A family of multiformat video encoders manufactured by Analog Devices. This series provides high-speed digital-to-analog conversion for various video standards, enabling versatile deployment in consumer electronics and professional studio equipment requiring mixed format support.

Replacement Considerations

The ADV7302AKST is a direct functional substitute within the same family, sharing identical pinouts and core specifications. Both devices utilize the ST-64B plastic quad flatpack package and support the same multiformat video encoding capabilities.

FAQ

What is the maximum power consumption in normal operation?

Maximum power consumption reaches 110 mA when operating in simultaneous SD and Progressive Scan modes.

How does the ALSB pin affect the I2C interface?

Setting ALSB to Logic Level '0' activates the I2C filter to reduce noise, while Logic Level '1' allows higher speed data transfers with greater input bandwidth.

What are the supported output formats for High Definition video?

High definition output formats include YPrPb Progressive Scan (EIA-770.1, EIA-770.2), YPrPb HDTV (EIA 770.3), and RGB + H/V (HDTV 5-Wire Format).