Quad, Low Power, 12-Bit, 180 MSPS, Digital-to- Analog Converter and Waveform Generator Data Sheet AD9106 FEATURES GENERAL DESCRIPTION Highly integrated quad DAC The AD9106 TxDAC and waveform generator is a high perfor- On-chip 4096 12-bit pattern memory mance, quad digital-to-analog converter (DAC) integrating on-chip On-chip DDS pattern memory for complex waveform generation with a direct Power dissipation at 3.3 V, 4 mA output typical digital synthesizer (DDS). The DDS is a 12-bit output, up to 315.25 mW at 180 MSPS 180 MHz master clock sinewave generator with a 24-bit tuning Power-down mode: <5 mW at 3.3 V word allowing 10.8 Hz/LSB frequency resolution. The DDS has Supply voltage: 1.8 V to 3.3 V a single frequency output for all four DACs and independent SFDR to Nyquist: 86 dBc at 10 MHz output programmable phase shift outputs for each of the four DACs. Phase noise at 1 kHz offset, 180 MSPS, 4 mA: 140 dBc/Hz SRAM data can include directly generated stored waveforms, Differential full-scale current outputs: 8 mA maximum at 3.3 V amplitude modulation patterns applied to DDS outputs, or Small footprint, 5 mm 5 mm with 3.5 mm 3.6 mm DDS frequency tuning words. exposed paddle, 32-lead LFCSP An internal pattern control state machine allows the user to RoHS compliant package program the pattern period for all four DACs as well as the start APPLICATIONS delay within the pattern period for the signal output on each Medical instrumentation DAC channel. Ultrasound transducer excitation Registers accessed using the serial peripheral interface (SPI) Portable instrumentation configure the digital waveform generator and load patterns into Signal generators, arbitrary waveform generators the SRAM. There are gain adjustment factors and offset adjustments applied to the digital signals on their way into the four DACs. The AD9106 offers exceptional ac and dc performance and supports DAC sampling rates up to 180 MSPS. The flexible power supply operating range of 1.8 V to 3.3 V and low power dissipation of the AD9106 make it well suited for portable and low power applications. Rev. B 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 20122017 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. AD9106 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Setting DAC Gain (I ) ........................................................ 23 OUTFSx Applications ....................................................................................... 1 Automatic IOUTFSx Calibration ................................................... 24 General Description ......................................................................... 1 Clock Input .................................................................................. 24 Revision History ............................................................................... 3 DAC Output Clock Edge ........................................................... 25 Functional Block Diagram .............................................................. 4 Generating Signal Patterns ........................................................ 25 Specifications ..................................................................................... 5 Pattern Generator Programming ............................................. 26 DC Specifications (3.3 V) ............................................................ 5 DACx Input Data Paths ............................................................. 26 DC Specifications (1.8 V) ............................................................ 6 DOUT Function ......................................................................... 27 Digital Timing Specifications (3.3 V) ........................................ 7 Direct Digital Synthesizer (DDS) ............................................. 27 Digital Timing Specifications (1.8 V) ........................................ 7 SRAM ........................................................................................... 27 Input/Output Signal Specifications ............................................ 8 Sawtooth Generator ................................................................... 28 AC Specifications (3.3 V) ............................................................ 9 Pseudorandom Signal Generator ............................................. 28 AC Specifications (1.8 V) ............................................................ 9 DC Constant ............................................................................... 28 Power Supply Voltage Inputs and Power Dissipation ............ 10 Power Supply Notes ................................................................... 28 Absolute Maximum Ratings .......................................................... 11 Power-Down Capabilities .......................................................... 28 Thermal Resistance .................................................................... 11 Applications Information .............................................................. 29 ESD Caution ................................................................................ 11 Signal Generation Examples ..................................................... 29 Pin Configuration and Function Descriptions ........................... 12 Waveform Generation Setups with Ready to Use Register Values ........................................................................................... 31 Typical Performance Characteristics ........................................... 14 Register Map ................................................................................... 40 Terminology .................................................................................... 20 Register Descriptions ................................................................. 43 Theory of Operation ...................................................................... 21 Outline Dimensions ....................................................................... 58 SPI Port ........................................................................................ 22 Ordering Guide .......................................................................... 58 DAC Transfer Function ............................................................. 23 Analog Current Outputs ............................................................ 23 Rev. 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