ADV7122KP50-REEL

Digital To Analog Converters Overview

The ADV7122KP50-REEL is a triple 10-bit video digital-to-analog converter (DAC) from Analog Devices, operating at a maximum clock rate of 50 MHz. It integrates three high-speed RGB DACs with TTL-compatible inputs and analog current outputs capable of driving doubly terminated 75 Ω coaxial cables. The device includes composite SYNC and BLANK control signals for video synchronization encoding on the green channel. Packaged in a 44-pin plastic leaded chip carrier (PLCC), it operates on a single +5 V supply with an external 1.23 V reference voltage.

Digital To Analog Converters Feature Summary

• Triple 10-bit D/A converters with 80 MHz pipelined architecture capability (50 MHz grade)
• Integrated composite SYNC and BLANK control inputs
• TTL compatible digital inputs and RS-343A/RS-170 compatible analog outputs
• Monolithic +5 V CMOS construction ensuring low power dissipation

Digital To Analog Converters Applications

• High Definition Television (HDTV)
• High Resolution Color Graphics
• CAE/CAD/CAM Applications
• Video Signal Reconstruction

Digital To Analog Converters Procurement Notes

Verify that the 'REEL' suffix indicates tape-and-reel packaging rather than tube or tray distribution. Confirm the 'K' speed grade corresponds to the 50 MHz specification and the 'P' package code matches the 44-pin PLCC form factor. Ensure the component meets the industrial temperature range of 0°C to +70°C as specified for this variant.

Digital To Analog Converters Selection Notes

Select the ADV7122 over the ADV7121 when composite SYNC and BLANK control signals are required for video synchronization. Choose the KP50 variant specifically for systems requiring a 50 MHz pixel clock rate. Ensure the design accommodates the 44-pin PLCC footprint and provides adequate thermal management for up to 500 mW power dissipation.

Digital To Analog Converters Part Context

This component belongs to the ADV7121/ADV7122 family of video speed DACs. The ADV7122 distinguishes itself from the ADV7121 by including dedicated SYNC and BLANK control pins. The KP50 designation identifies the specific speed bin (50 MHz) and package type (44-pin PLCC) within the broader product line.

Digital To Analog Converters Replacement Considerations

The ADV7122KP80 serves as a higher-speed replacement offering 80 MHz operation in the same package. For applications not requiring SYNC/BLANK controls, the ADV7121 series may be considered if pin compatibility allows.