AD9911BCPZ

Overview

The AD9911BCPZ is a complete direct digital synthesizer (DDS) featuring a high-speed 10-bit DAC and three auxiliary DDS cores. It operates with a maximum system clock of 500 MSPS and supports up to 800 Mbps data throughput via an SPI-compatible interface. The device includes a selectable 4× to 20× reference clock multiplier (PLL) and a crystal oscillator circuit. Power supplies are 1.8 V for the DDS core and 3.3 V for the digital I/O port. It is housed in a 56-lead LFCSP package.

Feature Summary

• Patented SpurKiller technology reduces harmonic components and aliases to improve spurious-free dynamic range.
• Multitone generation capability enables the creation of up to four concurrent carriers with independent frequency, phase, and amplitude programming.
• Supports linear sweeping of frequency, phase, or amplitude for radar and instrumentation applications.
• Enables modulation of frequency, phase, or amplitude using stored profiles and profile pins.

Applications

• Agile local oscillators
• Test and measurement equipment
• Radar and sonar systems
• Fast frequency hopping

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and temperature rating. Ensure that any additional characters in the part number do not indicate variations in functionality or electrical specifications beyond those defined in the official datasheet.

Selection Notes

Select this component when a high-resolution direct digital synthesizer with integrated spur reduction is required. Consider the 500 MSPS maximum clock speed and the availability of auxiliary cores for multitone generation. Verify that the 56-lead LFCSP package fits the board layout constraints and that the 1.8 V/3.3 V power supply requirements align with the system design.

Part Context

The AD9911BCPZ belongs to the Analog Devices AD9911 series of direct digital synthesizers. This family provides flexible frequency synthesis solutions with integrated digital control interfaces. The BC designation typically indicates a specific temperature grade within the product line.

Replacement Considerations

Public confirmed substitute part numbers: None identified in verified documentation.

FAQ

How does the AD9911 handle spurious signals?

It utilizes patented SpurKiller technology to reduce the magnitude of harmonic components and their aliases, thereby improving the spurious-free dynamic range.

What is the purpose of the auxiliary DDS cores?

The three auxiliary cores without assigned DACs are used for spur reduction, multitone generation, or test-tone modulation.

Can the AD9911 generate multiple frequencies simultaneously?

Yes, the multitone mode allows the generation of up to four concurrent carriers with independently programmable frequency, phase, and amplitude.