AD9956

RECOMMENDED FOR NEW DESIGNS

2.7 GHz DDS-Based AgileRF™ Synthesizer

Data Sheet (Rev. B) Product Selection Table

Part Models: 1
1ku List Price: Starting From $26.64

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Part Details

400 MSPS Internal DDS Clock Speed
48-bit frequency tuning word
14-bit Programmable Phase Offset
Integrated 14-bit DAC
- Excellent Dynamic Performance
- Phase noise ≤ 135 dBc/Hz @ 1 KHz offset
- −80 dB SFDR @ 160 MHz (±100 KHz offset I_OUT)
25 Mb/s write-speed serial I/O control
655 MHz programmable input dividers for the phase
- frequency detector (÷M, ÷N) {M, N = 1..16} (bypassable)
Programmable RF divider (÷R) {R = 1, 2, 4, 8} (bypassable)

8 phase/frequency profiles
1.8 V supply for device operation
3.3 V supply for I/O and charge pump
Software controlled power-down
48-lead LFCSP package
Automatic linear frequency sweeping capability (in DDS)
Programmable charge pump current (up to 4 mA)
Phase modulation capability
Multichip synchronization
Dual-mode PLL lock detect
655 MHz CML-mode PECL-compliant driver

Part Models: 1
1ku List Price: Starting From $26.64

Documentation

DDS Design 05/13/2004

Digital Potentiometers Vary Amplitude In DDS Devices 05/29/2000

Digital Waveform Generator Provides Flexible Frequency Tuning for Sensor Measurement 12/07/2004

DDS Circuit Generates Precise PWM Waveforms 10/02/2003

DDS Device Produces Sawtooth Waveform 07/10/2003

DDS IC Initiates Synchronized Signals 07/20/2005

Video Portables and Cameras Get HDMI Outputs 04/13/2007

Two DDS ICs Implement Amplitude-shift Keying 12/25/2003

ADI Buys Korean Mobile TV Chip Maker 06/07/2006

400-MSample DDSs Run On Only +1.8 VDC 12/01/2002

Basics of Designing a Digital Radio Receiver (Radio 101) 03/06/1998

Product Highlight 1

Introducing Digital Up/Down Converters: VersaCOMM™ Reconfigurable Digital Converters 03/08/2008

Evaluation Design File 1

AD9956/PCB: Evaluation Board for 2.7 Ghz DDS-Based AgileRF™ Synthesizer 04/20/2005

Frequently Asked Question 1

FAQ 12/31/2017

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD9956YCPZ	48-Lead LFCSP (7mm x 7mm x 0.85mm w/ EP)	Material Declaration Reliablity Data	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jun 9, 2021 - 20_0126 Conversion of Select Sizes LFCSP Products from Punched to Sawn and Transfer of Assembly Site to ASE Korea
		PCN20_0126_Form Qualification Results Summary Material_Report Detailed Change Description Package Outline Drawing Package Outline Drawing Qualification Results Summary Qualification Results Summary Qualification Results Summary Qualification Results Summary
AD9956YCPZ	PRODUCTION
Sep 13, 2017 - 16_0077 CANCELLED: Conversion of Select 4x4, 5x5, 6x6 and 7x7mm LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE Korea.
		PCN16_0077_Form Material_Report Detailed Parts List Detailed Parts List Package Outline Drawing Detailed Change Description Qualification Results Summary
AD9956YCPZ	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

ADIsimDDS (Direct Digital Synthesis)

ADIsimDDS uses mathematical equations to model and illustrate the overall performance of the selected device. ADIsimDDS calculates the required FTW, given the reference clock frequency and desired output frequency. This tool also models an estimate of the overall spectral performance, and allows the user to explore the effects of external reconstruction filters.

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