16-Channel High Performance Differential Output, 192 kHz, 24-Bit DAC Data Sheet ADAU1966 GENERAL DESCRIPTION FEATURES The ADAU1966 is a high performance, single-chip DAC that 118 dB DAC dynamic range and SNR provides 16 digital-to-analog converters (DACs) with differen- 98 dB THD + N tial output using the Analog Devices, Inc., patented multibit Differential voltage DAC output 2 sigma-delta (-) architecture. An SPI/I C port is included, 2.5 V digital, 5 V analog and 3.3 V or 5 V I/O supplies allowing a microcontroller to adjust volume and many other 521 mW total (32.6 mW/channel) quiescent power parameters. The ADAU1966 operates from 2.5 V digital, 5 V PLL generated or direct MCLK master clock analog and 3.3 V or 5 V input/output supplies. A linear regulator Low EMI design is included to generate the digital supply voltage from the analog Linear regulator driver to generate digital supply supply voltage. The ADAU1966 is available in an 80-lead LQFP Supports 24-bit and 32 kHz to 192 kHz sample rates package. Low propagation 192 kHz sample rate mode Log volume control with autoramp function The ADAU1966 is designed for low EMI. This consideration is Temperature sensor with digital readout 3C accuracy apparent in both the system and circuit design architectures. 2 SPI and I C controllable for flexibility By using the on-board PLL to derive the internal master clock Software-controllable clickless mute from an external LRCLK, the ADAU1966 can eliminate the Software power-down need for a separate high frequency master clock and can be 2 Right-justified, left-justified, I S, and TDM modes used with or without a bit clock. The DACs are designed using Master and slave modes with up to 16-channel input/output the latest Analog Devices continuous time architectures to 80-lead LQFP package further minimize EMI. By using 2.5 V digital supplies, power Qualified for automotive applications consumption is minimized, and the digital waveforms are a smaller amplitude, further reducing emissions. APPLICATIONS Automotive audio systems Home theater systems Digital audio effects processors FUNCTIONAL BLOCK DIAGRAM DIGITAL AUDIO INPUT ADAU1966 SERIAL DATA PORT DAC DAC DAC DAC SDATA SDATA DAC DAC IN IN DIGITAL DIGITAL DIFFERENTIAL DIFFERENTIAL DAC FILTER CLOCKS FILTER DAC ANALOG ANALOG AND AND AUDIO AUDIO VOLUME VOLUME DAC DAC OUTPUTS OUTPUTS CONTROL CONTROL TIMING MANAGEMENT AND CONTROL DAC DAC (CLOCK AND PLL) DAC DAC DAC DAC 2 SPI/I C PRECISION INTERNAL CONTROL PORT VOLTAGE TEMP REFERENCE SENSOR CONTROL DATA INPUT/OUTPUT Figure 1. Rev. E 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 20112016 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 09434-001ADAU1966 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Block Power-Down and Thermal Sensor Control 1 Register27 Applications ....................................................................................... 1 Power-Down Control 2 Register .............................................. 28 General Description ......................................................................... 1 Power-Down Control 3 Register .............................................. 29 Functional Block Diagram .............................................................. 1 Thermal Sensor Temperature Readout Register .................... 30 Revision History ............................................................................... 3 DAC Control 0 Register ............................................................ 31 Specif icat ions ..................................................................................... 4 DAC Control 1 Register ............................................................ 32 Analog Performance Specifications ........................................... 4 DAC Control 2 Register ............................................................ 33 Crystal Oscillator Specifications................................................. 5 DAC Individual Channel Mutes 1 Register ............................ 34 Digital Input/Output Specifications........................................... 5 DAC Individual Channel Mutes 2 Register ............................ 35 Power Supply Specifications........................................................ 6 Master Volume Control Register .............................................. 36 Digital Filters ................................................................................. 6 DAC 1 Volume Control Register .............................................. 36 Timing Specifications .................................................................. 7 DAC 2 Volume Control Register .............................................. 37 Absolute Maximum Ratings ............................................................ 9 DAC 3 Volume Control Register .............................................. 37 Thermal Resistance ...................................................................... 9 DAC 4 Volume Control Register .............................................. 38 ESD Caution .................................................................................. 9 DAC 5 Volume Control Register .............................................. 38 Pin Configuration and Function Descriptions ........................... 10 DAC 6 Volume Control Register .............................................. 39 Typical Performance Characteristics ........................................... 13 DAC 7 Volume Control Register .............................................. 39 Application Circuits ....................................................................... 14 DAC 8 Volume Control Register .............................................. 40 Theory of Operation ...................................................................... 15 DAC 9 Volume Control Register .............................................. 40 Digital-to-Analog Converters (DACs) .................................... 15 DAC 10 Volume Control Register ............................................ 41 Clock Signals ............................................................................... 15 DAC 11 Volume Control Register ............................................ 41 RST DAC 12 Volume Control Register ............................................ 42 Power-Up and ..................................................................... 16 DAC 13 Volume Control Register ............................................ 42 Standalone Mode ........................................................................ 17 2 DAC 14 Volume Control Register ............................................ 43 I C Control Port .......................................................................... 17 DAC 15 Volume Control Register ............................................ 43 Serial Control Port: SPI Control Mode ................................... 19 DAC 16 Volume Control Register ............................................ 44 Power Supply and Voltage Reference ....................................... 20 Common Mode and Pad Strength Register ............................ 44 Serial Data PortsData Format ............................................... 20 DAC Power Adjust 1 Register ................................................... 45 Time-Division Multiplexed (TDM) Modes ............................ 20 DAC Power Adjust 2 Register ................................................... 46 Temperature Sensor ................................................................... 20 DAC Power Adjust 3 Register ................................................... 47 Additional Modes ....................................................................... 22 DAC Power Adjust 4 Register ................................................... 48 Register Summary .......................................................................... 24 Outline Dimensions ....................................................................... 52 Register Details ............................................................................... 25 Ordering Guide .......................................................................... 52 PLL and Clock Control 0 Register ........................................... 25 Automotive Products ................................................................. 52 PLL and Clock Control 1 Register ........................................... 26 Rev. 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