AD8389ACPZ

Programmable Timers And Oscillators Overview

The AD8389ACPZ is a triple, 6-channel LCD microdisplay delay-locked loop (DLL) designed for precise timing control. It maintains a constant delay between the common DXI input and independent MONITxI feedback references. The device features a selectable fixed delay element, phase detector, charge pump, and six matched variable delay lines per color channel. Operating at clock rates up to 85 MHz with a nominal power dissipation of 40 mW, it ensures stable timing relationships critical for LCD image quality. The component is housed in a 48-lead 7 mm × 7 mm LFCSP package.

Programmable Timers And Oscillators Feature Summary

• Triple 6-channel architecture supporting Red, Green, and Blue LCD timing signals
• Closed-loop DLL maintains constant delay between DXI and MONITxI inputs
• Six matched variable delay lines per color ensure low output skew
• Selectable loop delay via COMPEDGE and SLOW control pins
• Low power consumption of 40 mW at 75 MHz operation

Programmable Timers And Oscillators Applications

• LCD microdisplay horizontal timing synchronization
• LCD projection system timing compensation
• Compensation for TFT delay and switching speed variations due to temperature or aging

Programmable Timers And Oscillators Procurement Notes

Verify the specific ordering suffix 'ACPZ' corresponds to the lead-free version within the 0°C to 85°C commercial temperature range. Confirm that the 48-lead LFCSP package dimensions match the design footprint requirements. Ensure ESD precautions are observed during handling as the device is sensitive to electrostatic discharge.

Programmable Timers And Oscillators Selection Notes

Select this component when designing systems requiring synchronized timing for triple-channel LCD microdisplays. The AD8389 is suitable for applications needing automatic compensation for LCD aging and temperature-induced delay variations. Ensure the system operates within the 3 V to 3.6 V supply voltage range and utilizes the specified 200 pF capacitors on VCONT pins for proper charge pump operation.

Programmable Timers And Oscillators Part Context

The AD8389ACPZ belongs to the AD8389 family of LCD timing controllers. It is specifically engineered to interface with LCD panels containing internal reference TFTs. The device functions by characterizing the internal Sample/Hold TFTs to monitor switching speed variations, thereby maintaining optimized timing for the display panel.

Programmable Timers And Oscillators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.