16-Channel, High Performance, 192 kHz, 24-Bit DAC Data Sheet ADAU1966A FEATURES GENERAL DESCRIPTION Differential or single-ended voltage DAC output The ADAU1966A is a high performance, single-chip digital-to- 114 dB DAC dynamic range, A-weighted, differential analog converter (DAC) that provides 16 DACs with differential or 97 dB total harmonic distortion plus noise (THD + N), single-ended outputs using the Analog Devices, Inc., patented differential multibit sigma-delta (-) architecture. A serial peripheral interface 2 110 dB DAC dynamic range, A-weighted, single-ended (SPI)/I C port is included, allowing a microcontroller to adjust 95 dB THD + N, single-ended volume and many other parameters. The ADAU1966A operates 2.5 V digital and 3.3 V analog and input/output (I/O) supplies from 2.5 V digital and 3.3 V analog supplies. A linear regulator 299 mW total quiescent power is included to generate the digital supply voltage from the analog Phase-locked loop (PLL) generated or direct master clock supply voltage. The ADAU1966A is available in an 80-lead LQFP. Low electromagnetic interference (EMI) design The ADAU1966A is designed for low EMI. This consideration Linear regulator driver to generate digital supply is apparent in both the system and circuit design architectures. Supports 24-bit and 32 kHz to 192 kHz sample rates By using the on-board PLL to derive the internal master clock from Low propagation 192 kHz sample rate mode an external left-right frame clock (LRCLK), the ADAU1966A Log volume control with autoramp function can eliminate the need for a separate high frequency master clock Temperature sensor with digital readout 3C accuracy and can be used with or without a bit clock. The DACs are 2 SPI and I C controllable for flexibility designed using the latest Analog Devices continuous time Software-controllable clickless mute architectures to further minimize EMI. By using 2.5 V digital Software power-down supplies, power consumption is minimized, and the digital 2 Right justified, left justified, I S, and TDM modes waveforms are a smaller amplitude, further reducing emissions. Master and slave modes with up to 16-channel input/output Note that throughout this data sheet, multifunction pins, such as 80-lead LQFP package SCLK/SCL, are referred to by the entire pin name or by a single Qualified for automotive applications function of the pin, for example, SCLK, when only that function APPLICATIONS is relevant. Automotive audio systems Home theater systems Digital audio effects processors FUNCTIONAL BLOCK DIAGRAM DIGITAL AUDIO INPUT ADAU1966A SERIAL DATA PORT DAC DAC DAC DAC SDATA SDATA DAC DAC IN IN DIGITAL DIGITAL DAC FILTER CLOCKS FILTER DAC ANALOG ANALOG AND AND AUDIO AUDIO VOLUME VOLUME OUTPUTS DAC DAC 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. A 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 20132016 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 11298-001ADAU1966A Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Block Power-Down and Thermal Sensor Control 1 Register ....................................................................................................... 27 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 ............................................................................... 2 DAC Control 0 Register ............................................................ 30 Specif icat ions ..................................................................................... 3 DAC Control 1 Register ............................................................ 31 Analog Performance Specifications: T = 25C ....................... 3 A DAC Control 2 Register ............................................................ 32 Analog Performance Specifications: T = 105C ..................... 4 A DAC Individual Channel Mutes 1 Register ............................ 33 Crystal Oscillator Specifications................................................. 4 DAC Individual Channel Mutes 2 Register ............................ 34 Digital Input/Output Specifications........................................... 5 Master Volume Control Register .............................................. 35 Power Supply Specifications........................................................ 5 DAC 1 Volume Control Register .............................................. 35 Digital Filters ................................................................................. 6 DAC 2 Volume Control Register .............................................. 36 Timing Specifications .................................................................. 6 DAC 3 Volume Control Register .............................................. 36 Absolute Maximum Ratings ............................................................ 8 DAC 4 Volume Control Register .............................................. 37 Thermal Resistance ...................................................................... 8 DAC 5 Volume Control Register .............................................. 37 ESD Caution .................................................................................. 8 DAC 6 Volume Control Register .............................................. 38 Pin Configuration and Function Descriptions ............................. 9 DAC 7 Volume Control Register .............................................. 38 Typical Performance Characteristics ........................................... 12 DAC 8 Volume Control Register .............................................. 39 Typical Application Circuits .......................................................... 13 DAC 9 Volume Control Register .............................................. 39 Theory of Operation ...................................................................... 14 DAC 10 Volume Control Register ............................................ 40 DACs ............................................................................................ 14 DAC 11 Volume Control Register ............................................ 40 Clock Signals ............................................................................... 14 DAC 12 Volume Control Register ............................................ 41 Power-Up and Reset ................................................................... 16 DAC 13 Volume Control Register ............................................ 41 Standalone Mode ........................................................................ 16 2 DAC 14 Volume Control Register ............................................ 42 I C Control Port .......................................................................... 16 DAC 15 Volume Control Register ............................................ 42 Serial Control Port: SPI Control Mode ................................... 19 DAC 16 Volume Control Register ............................................ 43 Power Supply and Voltage Reference ....................................... 20 Pad Strength Register ................................................................. 43 Serial Data PortsData Format ............................................... 20 DAC Power Adjust 1 Register ................................................... 44 Time-Division Multiplexed (TDM) Modes ............................ 21 DAC Power Adjust 2 Register ................................................... 45 Temperature Sensor ................................................................... 21 DAC Power Adjust 3 Register ..................................................... 46 Additional Modes ....................................................................... 23 DAC Power Adjust 4 Register ................................................... 47 Register Summary .......................................................................... 24 Outline Dimensions ....................................................................... 51 Register Details ............................................................................... 25 Ordering Guide .......................................................................... 51 PLL and Clock Control 0 Register ........................................... 25 Automotive Products ................................................................. 51 PLL and Clock Control 1 Register ........................................... 26 REVISION HISTORY 3/16Rev. 0 to Rev. A 8/13Revision 0: Initial Version Changes to Table 4 ............................................................................ 5 Rev. A Page 2 of 52