ADV7120KP50

Digital To Analog Converters Overview

The ADV7120KP50 is a monolithic CMOS digital-to-analog video converter featuring three independent 8-bit DACs for RGB signals. Operating at a maximum clock rate of 50 MHz, it accepts TTL-compatible parallel data and control inputs to generate analog outputs compliant with RS-343A and RS-170 standards. The device requires a single +5 V supply and an external 1.23 V reference voltage. Packaged in a 44-pin Plastic Leaded Chip Carrier (PLCC), it integrates pixel input ports, composite sync, blanking, and reference white controls within a low-power design suitable for high-speed video applications.

Digital To Analog Converters Feature Summary

• Triple 8-bit D/A converters with 50 MHz pipelined operation
• TTL compatible digital inputs and RS-343A/RS-170 compatible analog outputs
• Integrated composite sync, blank, and reference white control functions
• Monolithic +5 V CMOS construction ensuring monotonicity and low power dissipation

Digital To Analog Converters Applications

• High resolution color graphics systems
• CAE/CAD/CAM applications
• Image processing instrumentation
• Video signal reconstruction
• Direct Digital Synthesis (DDS) and I/Q modulation

Digital To Analog Converters Procurement Notes

Verify the specific speed grade suffix '50' corresponds to the required 50 MHz performance level. Confirm the package option 'P' indicates the 44-pin PLCC format. Ensure the industrial temperature range requirement matches the standard 0°C to +70°C specification provided in the ordering guide.

Digital To Analog Converters Selection Notes

Select this component when a 50 MHz update rate is sufficient for the target resolution and refresh rate. Calculate the dot rate using the formula: Dot Rate = (Horizontal Resolution × Vertical Resolution × Refresh Rate) / Retrace Factor. Ensure the system provides a stable 1.23 V reference and that the PCB layout supports separate analog and digital ground planes to maintain signal integrity.

Digital To Analog Converters Part Context

The ADV7120 series includes variants with different speed grades and packages. The ADV7120KN50 offers identical electrical performance in a 40-pin DIP package, while the ADV7120KST50 utilizes a 48-lead TQFP. Higher speed versions such as the ADV7120KP80 operate at 80 MHz. All variants share the same functional architecture and pinout compatibility within their respective package types.

Digital To Analog Converters Replacement Considerations

The ADV7120KP80 serves as a higher-speed alternative with 80 MHz capability in the same 44-pin PLCC package. For DIP packaging requirements, the ADV7120KN50 provides equivalent 50 MHz performance. Verify that any substitute maintains the 8-bit resolution and TTL input compatibility.