AD9859YSVZ

Overview

The AD9859YSVZ is a direct digital synthesizer (DDS) featuring an integrated 10-bit DAC operating at up to 400 MSPS. It utilizes advanced DDS technology with a 32-bit tuning word for fine frequency resolution and fast hopping capabilities. The device supports serial I/O control, software/hardware power-down modes, and multichip synchronization. It operates on a 1.8 V supply with 3.3 V or 1.8 V I/O levels, housed in a 48-lead TQFP/EP package.

Feature Summary

• Integrated 10-bit high-speed DAC with differential current outputs referenced to AVDD.
• Advanced DDS core providing 32-bit frequency tuning word resolution and phase modulation capability.
• Flexible clocking architecture supporting internal crystal oscillator and PLL multiplier ranging from 4x to 20x.
• Multichip synchronization functionality via SYNC_IN and SYNC_CLK pins for system alignment.

Applications

• Agile LO frequency synthesis
• Programmable clock generators
• Test and measurement equipment
• Commercial and amateur radio exciter

Procurement Notes

Verify the specific ordering suffix YSVZ against the manufacturer's official documentation to confirm package type and temperature range specifications. Ensure compatibility with required I/O voltage levels (1.8 V or 3.3 V) during component selection. Cross-reference the datasheet revision to validate electrical characteristics and absolute maximum ratings prior to integration.

Selection Notes

Select this component when a high-speed DDS with integrated 10-bit conversion is required. Consider the 400 MSPS clock speed and 32-bit tuning word for applications demanding precise frequency agility. Evaluate the need for multichip synchronization and the specific power supply constraints of 1.8 V analog/digital cores versus 3.3 V I/O logic.

Part Context

The AD9859 belongs to Analog Devices' Direct Digital Synthesis family, designed for high-performance frequency generation. The YSVZ suffix typically denotes the commercial temperature grade variant packaged in a 48-lead Thin Quad Flat Package with Exposed Pad (TQFP/EP). This packaging facilitates thermal management and provides multiple ground connections for signal integrity.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's ordering guide for alternative packages or updated revisions within the same product line.