Programmable Frequency Sweep and Output Burst Waveform Generator Data Sheet AD5930 FEATURES GENERAL DESCRIPTION Programmable frequency profile 1 The AD5930 is a waveform generator with programmable No external components necessary frequency sweep and output burst capability. Utilizing Output frequency up to 25 MHz embedded digital processing that allows enhanced frequency Burst and listen capability control, the device generates synthesized analog or digital Preprogrammable frequency profile minimizes number of frequency-stepped waveforms. Because frequency profiles DSP/microcontroller writes are preprogrammed, continuous write cycles are eliminated Sinusoidal/triangular/square wave outputs and thereby free up valuable DSP/microcontroller resources. Automatic or single pin control of frequency stepping Waveforms start from a known phase and are incremented Waveform starts at known phase phase continuously, which allows phase shifts to be easily Increments at 0 phase or phase continuously determined. Consuming only 8 mA, the AD5930 provides a Power-down mode: 20 A convenient low power solution to waveform generation. Power supply: 2.3 V to 5.5 V The AD5930 can be operated in a variety of modes. In Automotive temperature range: 40C to +125C continuous output mode, the device outputs the required 20-lead pb-free TSSOP frequency for a defined length of time and then steps to the next frequency. The length of time the device outputs a APPLICATIONS particular frequency is either preprogrammed and the device increments the frequency automatically, or, alternatively, is Frequency sweeping/radar Network/impedance measurements incremented externally via the CTRL pin. In burst mode, the device outputs its frequency for a length of time and then Incremental frequency stimulus returns to midscale for a further predefined length of time Sensory applications before stepping to the next frequency. When the MSBOUT pin Proximity and motion is enabled, a digital output is generated. BFSK Frequency bursting/pulse trains (continued on Page 3) FUNCTIONAL BLOCK DIAGRAM INTERRUPT STANDBY DVDD CAP/2.5V DGND AGND AVDD AD5930 REGULATOR VCC SYNC SYNCOUT MCLK 2.5V BUFFER OUTPUT BURST CONTROLLER DGND O/P DATA SYNC BUFFER MSBOUT INCREMENT CTRL CONTROLLER 24-BIT IOUTB DATA INCR 10-BIT PIPELINED DAC FREQUENCY DDS CORE IOUT CONTROLLER 24 DATA AND CONTROL ON-BOARD FULL-SCALE COMP CONTROL REFERENCE CONTROL SERIAL INTERFACE REGISTER REF FSADJUST FSYNC SCLK SDATA Figure 1. 1 Protected by US Patent Number 6747583. Rev. D Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20052017 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Technical Support www.analog.com 05333-001AD5930 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Serial Interface ............................................................................ 17 Applications ....................................................................................... 1 Powering up the AD5930 .......................................................... 17 General Description ......................................................................... 1 Programming the AD5930 ........................................................ 17 Functional Block Diagram .............................................................. 1 Setting up the Frequency Sweep ............................................... 19 Revision History ............................................................................... 2 Activating and Controlling the Sweep ..................................... 20 General Description ......................................................................... 3 Outputs from the AD5930 ........................................................ 21 Specifications ..................................................................................... 4 Applications Information .............................................................. 22 Timing Characteristics ..................................................................... 6 Grounding and Layout .............................................................. 22 Absolute Maximum Ratings ............................................................ 8 AD5930 to ADSP-21467 Interface ........................................... 22 ESD Caution .................................................................................. 8 AD5930 to 68HC11/68L11 Interface ....................................... 23 Pin Configuration and Function Descriptions ............................. 9 AD5930 to 80C51/80L51 Interface .......................................... 23 Typical Performance Characteristics ........................................... 11 AD5930 to DSP56002 Interface ............................................... 23 Terminology .................................................................................... 15 Evaluation Board ........................................................................ 24 Theory of Operation ...................................................................... 16 Schematic..................................................................................... 25 The Frequency Profile ................................................................ 16 Outline Dimensions ....................................................................... 27 Output Modes ............................................................................. 16 Ordering Guide .......................................................................... 27 REVISION HISTORY 5/2017Rev. C to Rev. D 7/2012Rev. A to Rev. B Changed controller to Microcontroller ..................... Throughout Change to Ordering Guide ............................................................ 27 Changes to AD5930 to 68HC11/68L11 Interface Section ........ 23 2/2012Rev. 0 to Rev. A 7/2015Rev. B to Rev. C Change to Figure 2 ............................................................................ 5 Change to Figure 6 and Figure 7..................................................... 7 Changes to Figure 22, Figure 23, Figure 24, Figure 25, Change to Table 4 ............................................................................. 9 and Figure 26 ................................................................................... 13 Changed Applications Section to Applications Information Changes to Figure 27, Figure 28, Figure 29, and Section and Changed ADSP-2101 to ADSP-21467 .................... 22 Figure 30 .......................................................................................... 25 11/2005Revision 0: Initial Version Rev. D Page 2 of 28