AD9856ASTZ

Overview

The AD9856ASTZ is a single-channel Direct Digital Synthesizer (DDS) featuring an integrated 12-bit digital-to-analog converter. Manufactured by Analog Devices Inc., it operates within a supply voltage range of 3 V and supports frequencies from 5 MHz to 200 MHz. The device utilizes a serial interface for control and is housed in a 48-pin LQFP package. It functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates a high-speed 12-bit DAC with a direct digital synthesizer core for precise frequency generation.
• Supports quadrature output capabilities through internal architecture designed for complex signal modulation.
• Features a flexible serial interface for efficient configuration and data loading.

Applications

• Wireless communication systems requiring precise local oscillator signals
• Test and measurement equipment needing stable frequency sources
• Software-defined radio implementations

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout and electrical characteristics. Confirm RoHS compliance status via current datasheets. Ensure compatibility with system power supplies and serial communication protocols before integration.

Selection Notes

Select this component when a single-channel DDS with integrated conversion is required. Compare channel count and resolution against alternatives like the AD9854 if dual-channel or different performance metrics are needed. Verify package availability and thermal requirements for the target application environment.

Part Context

This part belongs to the AD9856 series of Direct Digital Synthesizers. It is distinct from the AD9854, which offers two channels, and the AD9857, which provides higher resolution. The ASTZ designation indicates a lead-free, RoHS-compliant variant in a specific surface-mount package.

Replacement Considerations

The AD9854ASTZ serves as a related alternative offering dual-channel capability. Verify functional equivalence regarding interface timing and output architecture before substitution.